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Human Anatomy and Physiology

~84200 answered questions
Parent Category: Biology
Human physiology is the study of the human body relevant to the functions of the organs and systems. It provides a biological baseline for the five senses including the different systems, so that the body can operate normally.
Because they are related to Patrick riley. His species is unknown to mankind. I think that comment was pathetic. It is simply because of the genes they have, and people who have more than 2 are not abnormal or species unknown to mankind, just different, its not like your going to breastfeed with all…
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1300 to 1400 grams is the average weight of the adult human.
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The human head weighs five pounds, havn't you ever seem Jerry Mc'Guire (its a movie)First off if you have seen Jerry Mc'Guire (yeah the movie) you'd know the kid, ray, says it weighs 8 pounds Actually the typical human head weights approximately five kilograms, not five pounds.
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Eyebrow Hairs According to other research, an ungroomed eyebrow can contain as many as 550 hair folicles, which would mean 1100 total hairs! Here are more answers and opinions from other WikiAnswerers: The average person has approximately 250 hairs per eyebrow. According to Bosley the hair…
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The liver is the largest gland and the largest internal organ in the human body. A gland is defined as any group of cells that manufactures and releases substances for use somewhere else in the body. The liver not only makes and secretes substances, but it has over 5,000 functions that have been ide…
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A human body is made up of many nerves. The nerves are sensitive because of their soft tissue, so, when you tickle someone, you are touching their nervous system.
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You can, but you should avoid doing it often because it can affect your "prism vision" (eyes looking at the same thing at the same time). The term may be called "spreading your eyes" and is known as "walleye vision" (after the fish). With practice, you can diverge your eyes, as was done famously by…
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HYPOTHALAMUS - both endocrine and nervous systems PINEAL GLAND - both endocrine and nervous systems SPLEEN - both cardiovascular and immune systems URETHRA - both urinary (excretory) and reproductive systems
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It is actually made of Mucus, water, and oil.
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Tastes good....needs more salt! Normal tears that cover the corneal surface comprise three layers: the lipid, or oil layer, which is the outer layer of the tear film and helps prevent the lacrimal layer beneath it from evaporating or overflowing the lower eyelid the lacrimal, or watery layer, w…
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salt if you've ever tasted it. im positive that's what its made of.
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the pancreas
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Wear push up bras to maximise the breast areas ( it pushes them up and in).x it does work x :D
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midbrains, pons and medulla actually check the spelling
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Can A Demon Be Summoned Into A Human Body? Yes, but it is not recommended. If you are thinking of doing that then you put yourself in danger of becoming possessed. Demons are fallen angels. The ones that possess humans and animals are a certain class of angels. All angels do not possess bodies. A…
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Yes, you can by getting a nose job.
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Answer The human brain has the storage capacity to record 11 million books. Now, whether we use it all is debateable.
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Answer eat cornbread - goes straight to your butt, also some excersises will make it biggerFirst its spelled butt, seacond get plastick surgery.
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If you are in an honest relationship they should tell you they have done it with someone else. You can't really tell otherwise.
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Answer I don't think the tissues of either the body or the brain die instantly upon severing of the head. Therefore, neither the body or the head and brain are "dead" at the instant of severing. Everything I've read or been told over the years indicates that tissues continue to live until dying f…
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instructions below: You can actually do face exercises. Start off by having a straight face, and then smile as big as you can, and then frown. Repeat this for about 2 minutes. That should help with making the face slimmer. To get rid of a double chin, you must stretch your bottom lip out with your …
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GoosebumpsGoosebumps are the little bumps you get on your skin that make your skin look like chiken's skin,you get these when you're cold or when you're thrilled.Goosebumps (Horrorland) is a horror book series where 16 children fight through various villains. There are 12 books in the 1st ARC and 6 …
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the sound of your voice no I'm afraid you can't.The sound of your voice is controlled by your vocal cords which are like handprints each person has different ones and it's imposible to change them. You can change your voice through damaging your vocal cords. This can be done by drugs or alcohol. Do…
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Personnally, I've had great success with a chiropractor who resolved a sciatic problem that bothered me for 20 years. Four weeks of treatment and I've had a couple of minor reoccurances that took two or three more visits. That's been over the last five years. _______________________________________…
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To answer this question, we have to ask ourselves the question, what is an organ? An organ is a complex structure made up of 2 or more different tissue types. Examples of organs include the skin, each muscle, each bone, a lymph node, a blood vessel, a nerve, the sense organs, etc. Given that there a…
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We die naturally. Our bodies become physically incapable to work at a certain age, usually around 70 years old. Some people will have their bodies shut down at an earlier age, some people later. Sicknesses play a huge part in death, too. We die usually of old age, but other reasons like murder and s…
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Answer Tonsils are a special type of lymphatic tissue that filters and cleanses lymph; sort of like the air filter on an engine. Answer The tonsils and the adenoids are composed of lymphatic tissue and are part of the body's lymphatic system. They are situated at the top of the throat, where…
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Nails are tools ,have a look at our animal counterparts. The nail bed is there for the nail to be joined to the finger ,and that is the nailbeds task. Its part of the whole nail. The nail is simply a tool. In our case its not for hunting like some of out animal counterparts. We use it for aidin…
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It takes twelve years in to become a psychiatrist.
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What's really happening when you "crack" your knuckles: The noise you hear is actually the creating of small bubbles of nitrogen. This is an absolutely harmless thing to do despite all the "old wife's tales" to the contrary.
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What To Do To Stop Shivering Learn to Hypnotize yourself. You can also learn to use Cognitive therapy. You try to reverse your brain, but it takes practice. Also Yoga is a helper on this one. Most humans don't have the time to take out of their busy schedule to really practice controlling their m…
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probably a bad starter have it checked. This somewhat reminds me of my situation. I have a 960 and often when i start the vehicle the interiors to go on but the gears won't move, the seatbelt light doesn't flash, etc. If i tilt the key in the ignition back, ever so slightly, it will catch and the …
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Answer Insulin and glucagon are the hormones that control blood sugar levels in the body. It is produced by the isles of Langerhans in the pancreas.
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If you eat too much fat it builds up in your body, blood and causes you to become unhealthy and gain weight. It's hard on your vital organs.
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Answer It depends on what type of exercise the person is doing. There are low and High intensity aerobics, non-aerobic weight lifting. Think of your body as a car. To go faster you burn more fuel (glucose), you need higher air intake through the carburator(lungs), you need coolant to maint…
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Extreme Thirst and Trouble Concentrating I'd consult a doctor. You may have the beginning of diabetes, or another imbalance. Yes. There is something in your body that is either imbalanced, or you have diabetes. I would definitaly watch what you eat until you see your doctor so you don't go into …
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Simple, you can't Now stop trying and get a life!
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size of brainon average the adult human brain weighs 3.5 lbs ( smallest on record weighed 3 lbs largest on record weighed 5)and is about 6 inches long. It is a dark pink when alive and light grey when dead. It looks very similar to brain coral.I hope that helps answer some of your questions about th…
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The average human has 8-12 pints in their body.
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Did you know? You see colors when you rub your eyes because your retina is being squeezed so much (including your pupil), and it contracts all the colors in the area that your in and transfers it into your eye while in the rubbing process when your eyes are closed!
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tucker is the best person in the world and if u need this answer i don't care because i am a gansta u know me shout out to my gansta homie Bart and pudden and again tuck daddy is a gansta
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Stratum germinativum, also called stratum basale or basal cell layer.
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A nephron is where filtration of blood will occur and it is also the million miscroscopic devices inside the kidney
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The Lymphatic System fights against diseases by fighting pathogens, or viruses and bacteria that make your body sick. When the Lymphatic System fights pathogens, it helps fight pathogens which give you a chance unlikely to get a disease.
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Yes. If you've ever been to a high end restaurant with schmorgusboard or at a person's house that has prepared a beautiful buffet with lots of finger foods it's the color that the food is or the decorations around the food. I always use orange/apple slices around certain foods; sometimes cucumbers a…
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Answer Simply because the sensory cells have been badly damaged. This happens because of the "desensitization" of sensory receptors on the sensory cells of your tongue. This phenomenon occurs in all of our senses, where a strong and continuous stimulus desensitizes us to the same stimulus, s…
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stomach bed Structures related to the posterior surface of the stomach,in supine position, are termed as the stomach bed (i.e. the organs upon which the stomach lies). Also the structures forming the posterior wall of Omental bursa. Structures forming bed of stomach; Pancreas, spleen, left kidney, …
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TknOrganic nitrogen compounds are turned into ammonium. Kjeldahl nitrogen is organic nitrogen and ammonia nitrogen added together. When the pH is neutralized ammonium is converted to ammonia.
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Each hormone is a signal for the cell, that a specific chemical reaction must be done. As the molecules of hormones attach to cell receptors, adenylyl cyclase (transmembrane protein) is activated. Activated Adenylyl cyclase modifies ATP to form cyclic adenine monophosphate (cAMP). cAMP then activat…
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Opinions of Contributors: . The short answer is that it depends on the IQ scale you are referring to and even then it would not indicate that someone is actually a genius. . Actually, to join Mensa one has to prove that he or she has scored at or above two standard deviations above the norm (rou…
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A ligament is a tough fibrous band of tissue connecting the articular extremities of bones or supporting an organ in place.the stuff that connects your muscles
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270 or more some say about 326( I'd say that's a rumour)
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Hating Gays To answer that question, you would have to speak with specific individuals because each one would probably have their own answer. Generally, though, the reasons could range from personal beliefs to having personal experiences of a negative nature, to almost anything. Also, it's possi…
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my first answer is NEVER. my reason: the definition of mature is full growth, fully developed perfected. we reach full growth physicaly, but at the same time we never fully developed towards or at perfected. in the medical area, what i remember is up to your teenage years an only your teen years, t…
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Maybe it's because hair have roots that is "nourished" by shampoo and hair on our body is "nourished" by body foam which is usually for our skin and not for our hair on our body.
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ok that is a good science project. i did it myself. all the girls and all the boys in my class stood on their heels then we saw who stood the longest...boys or girls..it was girls.. but always remember to check your answer again..we did it again to see if girls definitely had better balance..and we …
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well it doesn't really matter on their gender it matters more about their weight.
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Dead Protein Because as hair is formed, it matures through a process called "keratinization", that's when the hair cells lose their nuclei. Once a cell loses its nucleus, it's no longer alive, so by the time the hair emerges from the skin, it is merely dead strands of protein. Also same with nai…
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Bile is made in the liver but stored in the gall bladder. Bile is produced in the liver from cholesterol. It is stored in the gallbladder which is situated just below the liver. The gallbladder is connected to the cystic duct which opens in the second part of the duodenum, which is part of small i…
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Thyroid, Thymus, Pituitary are the major organ tissues for these systems.
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1.Ascending aorta --> 2. Aortic arch --> 3. Descending aorta --> 4. Thoracic aorta --> 5. Abdominal aorta --> 6. L. Common Iliac artery --> 7. L. External Iliac artery --> 8. L. Femoral artery --> 9. L. Popliteal artery --> 10. L. Anterior Tibial artery --> 11. L. Media…
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20% of your full body weght
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It depends on the size of the point of the instrument doing the puncturing (i.e. a needle takes only a little force, but a bullet takes quite a bit). What you really need is how much pressure does it take to puncture skin. I don't believe there is a tested exact amount of pressure required to pierc…
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It would depend on the person's size and how active they are. Find the CO2 rates for an hour during sleep and being awake, multiply them by whatever you need and you'll figure out an annual estimate. However, a rough estimate (curtesy of "The Earth Blog") assuming 12 breaths per minute (resting bre…
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Answer: Structure of cell cytoplasm Cytoplasm is watery substance that has cytosol, organelles and inclusions as its major elements. Cytosol is semitransparent watery fluid that has nutrients suspended in it. Organelle are the metabolic machinery of the cell that carry out specific functions for the…
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there is actually no specific sections on the tongue regarding sour, bitter, sweet. These taste buds are scattered throughout your whole tongue. There are no receptors for chile/spicy, these are actually pain receptors. You test this on your own. Place a sour candy on any part of your tongue and you…
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The anus is the external opening of the rectum that is the last part of the gastrointestinal tract. It is situated in the posterior aspect of the perineal area between the coccyx and the pubic symphysis. Its main function is to keep the contents of the rectum (your solid waste) from leaving the bo…
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6.5 grams for a regular egg. A large raw egg has around 8 grams of protein and 90 calories.
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The heaviest organ in your body is you skin! It tends to weigh about 8-10 pounds
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Answer Well, a certain percentage of it is needed by the body. There is a fat coating on every nerve, like insulation on a wire. If this breaks down the nerves will stop working. You also need some to insulate the body and to feed you in times of illness. But, after about 18% in men/25% percent i…
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There are two types of 'respiration': pulmonary (visible breathing) and cellular (which is not visible). In pulmonary respiration the unwanted gas expelled is mainly carbon dioxide. This is then replaced during the inhalation breathing phase by the oxygen content in the air. The other respiration…
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between 13-17 are the ages that penis grow fast, it doesn't mean it does not grow after or before but fastest grow can be seen between these ages generally...
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I think that's probably strep throat
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Actually, both males and females have Adam's apples (which is just the thyroid cartilage). The only difference is that men's thyroid cartilages are more pronounced so they can be easily seen, but to find it on a woman you would have to feel for it. Adam's AppleMen have an Adam's apple because their…
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The Adam's apple appears when the thyroid cartilage in your neck increases in size. This occurs due to the effects of testosterone, and is associated with male puberty. The thyroid cartilage increases in size to allow the vocal cords underneath to lengthen, which is what allows men to develop a deep…
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Rigor Mortis, a stiffening of the muscles, usually starts to take place at around 3 hours after someone is dead with full rigor occurring at about 12 hours after death. After the 12 hour mark the rigor slowly ceases and at around 72 hours rigor disappears.
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Because the distance between the steps is not the same as in normal stairs, it is larger and therefore requires more effort to climb.
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Adam's Apple Men have an Adam's apple because their larynx (also called the "voice-box"), which contains the vocal cords is larger in men than in women. It is the larynx protruding from the front of the neck which we call the "Adam's apple"cause were awsome
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Insulin is a substance produced in the pancreas that helps the body use sugars.Insulin is a peptide hormone that causes cells in the liver, skeletal muscles, and fat tissue to take up glucose from the blood. Insulin is produced in the pancreas.
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The pulmonary artery is the one which carries blood from the right ventricle to the lungs. It is the only artery in the body that carries deoxygenated blood. The blood is carried at a pressure, usually less than 30mmHg. So, if the pulmonary artery was to be cut and bleed, the person would die when b…
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The fetal development occurs in the uterus. I hope your not cheating for school!* I am what r u goin to do about it:)
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Answer When a rocket launches into orbit, it has to get up to over 18,000 miles per hour in order to move forward at exactly the same speed that it is falling towards the earth, which is what is referred to as "orbit". In order to get to this incredible speed, it has to accelerate sufficiently be…
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The associated areas of the brain support abstract thinking and language. The temporal, parietal and occipital lobes organize the sensory input and integrate with past experiences to send the motor areas for responses.
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The average shoe size for a male is 10 1/2 (USA).
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Pain intensity (stimulus)
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The maintenance of a constant internal environment despite changes in the external environment.The word itself means "unchanging." It describes the body's ability maintain relatively stable internal conditions even though the outside world is changing.It's homeostasis, not homoeostasis, and it means…
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This isn't easy to answer because 'middle layer' is hard to pin point. From the outside front to the back, this is the order, Conjunctiva, cornea, aqueous humor, pupil (with the iris at both sides), lens, vitreous humor, retina, and then the optic nerve. The uvea is the middle vascular layer of th…
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Ive been reseaching this question as well, but have not arrived at any conclusive answer as of yet. I do remember some years ago of reading an article about "head averages" but have been unable to find that same article again. It is perhaps best for people to just say how long or wide their heads …
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Blood makes up about 7% of your body's weight. The average adult has 10 pints of blood in his or her body. One unit of blood is roughly the equivalent of one pint. This proportion is much greater in children, and slightly different in men and women. Men, on average, have 8 to 10 pints, while w…
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That is a mystery all unto itself. It is a complex organism that is generally composed of then systems; integumentary, skeletal, muscular, nervous, endocrine, circulatory, digestive, respiratory, urinary, and reproductive. These systems are composed of organs, such as the heart, lungs, stomach, inte…
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heartt ANSWER:Brain cells. You only have a limited amount from birth and once theyre gone, they are GONE.What about teeth, they cannot repair themselves?
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Actually the tongue is packed chock full of all kinds of bumpy nodules to register taste, hot and cold, sweet or sour, salty or bland and it's more likely to be one of these. It could be the start of a small ulcer or some other minor infection, so you should probably have a doctor look. The white b…
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First is the brain - our most complex organ, and the one which supports our consciousness and sense of self. Second is our liver - our body's chemistry factory and second most complex organ - it manages our nutritional needs. Third is our small intestine - which holds 2 to 5 pounds of bacteria tha…
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They aren't always. It depends on what is in the air you are breathing. They are green because all the mucus and dirt that you breath in is forming together so it makes a weird green color.
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ATP is produced by almost all living things in organelles called mitochondria found in cells. It is not energy itself, but rather temporarily "stores" energy in its' bonds. When the third phosphate bond is broken, energy is released. This creates ADP which has one less phosphate attached to the grou…
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A mineral is a naturally occurring, inorganic, solid substance, with a crystalline structure and a narrow range of chemical composition.
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Areas that are sheltered from direct contact are generally sensitive. The induction of laughter by tickling is a reflex, making it closely related to the startle reflex. It is believed to have evolved in humans over time as a protective reflex, as the areas in which we are ticklish are also the most…
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