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Respiratory System
The respiratory system includes the lungs and the airway. The questions in this category focus mainly on the anatomical and physiological processes associated with breathing.
2,890 Questions
Which type of blood vessel allows for oxygen and carbon dioxide to exchange?
Capillaries are the thin-walled vessels that allow oxygen and carbon dioxide exchange. Their thin walls make it easy for gases to diffuse across the membranes.
What force cause air to move in an out of the lungs?
inhale:- the air pressure in the lungs decreases and air moves in.
exhale:-air pressure in the lungs increases and air moves out.
What is the part of alveoli in our body?
There are about 300 million alveoli in each of your lungs. These tiny air sacs provide an ideal site for the diffusion of gases into and out of the blood - also known as gaseous exchange.
The alveoli have a very large surface area - in fact if all of the alveoli in your lungs were spread out flat
they would cover the area of a tennis court.
This large surface area is the result of all the alveoli being small spheres - it is another example of the
importance of the surface area- to-volume ratio.
If your lungs were simply two large balloon-like structures, the surface area wouldn't be big enough for you to get enough oxygen by diffusion to supply the needs of your cells.
But each alveolus is a very tiny sphere. The smaller the radius of a sphere, the bigger the relative surface area - halving the radius increases the relative surface area by a factor of four.
The millions of tiny alveoli in the human lungs are a very effective adaptation which provides a huge surface area for gaseous exchange into and out of the blood.
The alveoli have a good air supply from the bronchioles and a rich blood supply.
This is vital for successful gaseous exchange because it maintains a steep concentration gradient for oxygen from the air in the alveoli to the blood, and for carbon dioxide from the blood to the alveoli.
Do plants have organs in their respiratory system?
Oxygen can just diffuse directly into the unicellular organism. The same diffusion occurs in a multicellular organism, but the respiratory system has to get the oxygen close to the target cells in order for the oxygen to diffuse. But if there's only one cell to supply oxygen to, no respiratory system is needed.
What is respiratory organ of a fish called?
- amphibians breath with the help of both gills and lungs. example frog. frog in its larval stage is called a tadpole and its respiratory organ is gills. in its later stages of life (adult) its respiratory organs changes into lungs
Why amoeba does not need a respiratory organ?
no they are to small to have a respiratory system or organ so they breath through there cell membrane
What organs are part of the frog respiratory system?
They hold their breath until they turn green. That is how they get the skin color. Then they swallow their youngest children while fighting underwater dragons. When they kill the dragon, they drink its blood to develop gills, and they live happily ever after
What is the PO2 of the alveoli?
Normal atmospheric pressure of air is 150 mm Hg for oxygen (around 610 mm Hg for nitrogen). This equals 760 mm Hg in the atmosphere. In the alveoli, however, pressure is lower because 30% is being used by tissues, leaving 70% of 150 mm Hg oxygen in the alveoli. That means around 100-105 mm Hg is the partial pressure of oxygen in alveoli.
Do you only breathe out of one nose holes?
What causes you to breath through only one hole from your nose is the fact that the other hole is blocked by mucus, or "boogers" if the mucus has dried up. If this not the case then you should ask your doctor.
Sometimes this is normal. It may be the body's way to get you to turn over in your sleep and prevent bed sores. What happens is that the turbinates in your sinuses swell.
What would happen if one organ in the respiratory system stopped working?
Circulatory system carries the oxygen that the respiratory system brings in. If the blood isn't moving, neither is the oxygen. If either system fails, the other system fails shortly after. Brain death occurs in 6 minutes without oxygen.
Increase oxygen delivery how does that have an effect on the respiratory system?
It is taken in to the Aveoli in your lungs to oxygenate your blood. Oxygen is what your body needs to convert glucose to energy. Your respiratory system's main focus is to expel carbon dioxide, but takes oxygen to keep you alive.
Why does your respiratory rate increase as your activity level increases?
AFTER PERFORMING EXERCISE,A PERSON RESPIRES IN A FASTER RATE AND HE TAKES IN MORE AIR THAN HE NORMALLY DOES. THIS IS BECAUSE MORE OXYGEN IS FOR MUSCULAR EXWRCISE AND SO THERE IS AN INCREASED RATE OF RESPIRATION.
What system does the respirtory system work with?
the respiratory is the lungs and breathing system, but if you want to know what system works with it believe it or not al the vital systems and special organs work TOGETHER that is why our body can be soo healthy but if one organ or system will not cooperate in other words fail it will make our bodies very sick. i hope this helps!
What is mouse's respiratory system?
Closely coupled with the circulatory system is the ventilatory (breathing) apparatus, the lungs and associated structures. Ventilation in mammals is unique. The lungs themselves are less efficient than those of birds, for air movement consists of an ebb and flow, rather than a one-way circuit, so a residual volume of air always remains that cannot be expired. Ventilation in mammals is by means of a negative pressure pump made possible by the evolution of a definitive thoracic cavity with a diaphragm. The diaphragm is a unique composite structure consisting of :
- the transverse septum (a wall that primitively separates the heart from the general viscera)
- pleuroperitoneal folds from the body wall
- mesenteric folds
- axial muscles inserting on a central tendon, or diaphragmatic aponeurosis.
The lungs lie in separate airtight compartments called pleural cavities, separated by the mediastinum. As the size of the pleural cavity is increased, the lung is expanded and air flows in passively. Enlargement of the pleural cavity is produced by contraction of the diaphragm or by elevation of the ribs. The relaxed diaphragm domes upward, but when contracted it stretches flat. Expiration is an active movement brought about by contraction of abdominal muscles against the viscera. Air typically enters the respiratory passages through the nostrils, where it may be warmed and moistened. It passes above the bony palate and the soft palate and enters the pharynx. In the pharynx the passages for air and food cross. Air enters the trachea, which divides at the level of the lungs into primary bronchi. A characteristic feature of the trachea of many mammals is the larynx. Vocal cords stretch across the larynx and are vibrated by forced expiration to produce sound. The laryngeal apparatus may be greatly modified for the production of complex vocalizations. In some groups for example, howler monkeys the hyoid apparatus is incorporated into the sound-producing organ, as a resonating chamber.
Source - http://www.animalaqua.com/respiratory-system-mammal/
Your welcome.
The type of energy released when glucose is broken down?
The process of the breakdown of glucose to release energy happens in two different ways. One of them is called the citric cycle and yeilds the largest amount of energy, and the other is the lactic acid cycle which works when the oxygen supply is low.
What is a waste product of the respitatory system?
A waste product of the respitatory system is carbon dioxide.
What organ or body part in involved in the respiratory system?
The lungs - clearly, their role is obvious.
The heart, pumps oxygen rich blood around the body.
Red blood cells - they are loaded with Hemoglobin which bonds with the oxygen forming oxyhemoglobin - in English - it turns the oxygen into a weakly bonded solid so the oxygen can flow through the blood stream. red blood cells are a bi-concave disc, Red blood cells are also not an organ but the role they play is super important.
Hope this helps!
What happens to the body during breathing in and out?
When you breathe in, oxygen flows down your windpipe into your two lungs. At the same time, they are expanding and your diaphragm moves down towards the floor to allow the lungs to expand/inflate. When you breathe out, carbon dioxide gas leaves the body. At the same time, your lungs are deflating and your diaphragm pushes upwards to force the carbon dioxide out of the lungs. The 2 steps above repeat again and again from the time you are born till the time you die.
Diffusion causes gas exchange as it moves the oxygen to where its needed and the carbon dioxide moved out.
Diffusion occurs when molecules move from an area of high concentration (of molecule) to an area of low concentration. This occurs during gaseous exchange as the blood in the capillaries surrounding the alveoli has a lower oxygen concentration of Oxygen than the air in the alveoli which has just been inhaled. Both alveoli and capillaries have walls which are only one cell thick and allow gases to diffuse across them. The same happens with Carbon Dioxide (CO2). The blood in the surrounding capillaries has a higher concentration of CO2 than the inspired air due to it being a waste product of energy production. Therefore CO2 diffuses the other way, from the capillaries, into the alveoli where it can then be exhaled.
What gas diffuses from the tissues to the blood?
Both oxygen and carbon dioxide diffuse from body tissues into the blood.
Through which part of the respiratory system does air generally travel first?
The respiratory tract begins with the mouth or the nose, and then the pharynx, larynx, trachea, bronchus, bronchioles, and then the oxygen exchange occurs in the alveoli.
