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Skeletal System
The skeletal system provides definite shape and mechanical support to the body, and it also helps in movement and locomotion. Ask questions about the skeletal system and bones here.
14,490 Questions
Is your spine superior to your sternum?
superior, in anatomical terms means closer to the top of the body, and inferior means closer to the bottom of the body. eg, your neck is superior to your pelvis.
anterior means towards the front of the body, posterior towards the back. eg, your sternum is anterior of your scapular.
so, 'is your spine superior to your sternum' is not correct. this actually mixes the terminology of superior/inferior and anterior/posterior. your spine cannot be 'higher' than your sternum, it can however be posterior to your sternum. Hope this helps!
What is the process of dissolving bone and returning it's minerals to the bloodstream?
Bone cells called osteoclasts secrete acids and enzymes to break down bone tissue, releasing minerals such as calcium and phosphorus into the bloodstream. This process, known as bone resorption, helps regulate mineral levels in the body and allows for remodeling and repair of bone tissue.
The bones of the palm, also known as the metacarpal bones, are five cylindrical bones situated in the middle of the hand. These bones connect the wrist bones to the bones of the fingers. Each finger has three phalanges, except for the thumb, which has two.
What 3 elements make up human bones?
Short Answer:
Hydrogen, carbon and oxygen make up most of the human body.
Long Answer:
There are 60 types of elements normally detectable in the human body with two dozen known to be either essential or beneficial. Three, however, H,C, and O,
make up the majority of our atoms.
Hydrogen represents 63% of the atoms in our body but only 10% of our mass.
Oxygen is almost 2/3 rds (65%) of our mass but only 12% of our atoms.
Carbon is 1/8th (12%) of the atoms and 18% of the mass.
Together, H+C+O, account for 63+24+12=99% of the atoms and 65+18+10=93% of our mass.
One has to add in nitrogen + calcium + phosphorus + potassium + sulfur (=3%+1.4%+1.1%+.25%+.25%) to get 7% more and account for 99% of our mass.
How do red and yellow bone marrow differ in composition and function?
Cross Section of a long bone below:
In children red marrow dills the center of long bones this red marrow is replaced with yellow marrow as children become adults.
What is the name of the body that is a pad between bones?
Cartilage keeps bones from rubbing together and provides a smooth surface for movement at the joints
The human hand has five metacarpal bones, which are sometimes referred to as palmer bones. These bones are located in the palm of the hand and connect the wrist to the fingers.
What type of fracture bone pieces pressed together?
A compression fracture occurs when the bone is crushed or pressed together, often resulting in loss of height in the bone. This type of fracture is commonly seen in osteoporotic bones. Treatment involves stabilizing the bone and managing pain.
How is the shape of a long bone related to its function?
Long bones have greater length than width and consist of a shaft and a variable number of endings (extremities).
They are usually somewhat curved for strength.
Examples include femur, tibia, fibula, humerus, ulna and radius.
The thigh bone is called as femur. It is the architectural marvel.
Would a broken rib cause nausea?
If ribs are confirmed to be fractured, swelling could cause pressure to surrounding organs. Since fractured bones could take sometime to heal, nerves and muscle surrounding the bones can make someone feel pain in the injured area and pain can cause nausea.
Where is the proximal tibia located?
The proximal tibia is located at the top part of the shin bone (tibia), near the knee joint. It is an important weight-bearing bone in the lower leg and plays a crucial role in providing stability and support during movement.
Why is the fibula nicknamed the calf bone?
The fibula is sometimes referred to as the calf bone because it runs parallel to the tibia in the lower leg, giving shape and structure to the calf muscle. However, the fibula plays a minimal role in weight-bearing compared to the tibia.
Is cervical mucus safe to eat?
No, consuming cervical mucus is not safe as it can carry bacteria and other pathogens that may cause illness if ingested. It is important to practice proper hygiene and avoid ingesting bodily fluids for health reasons.
"Devil's bones" is a colloquial term for dice, due to their association with gambling and luck. It is a reference to the popular perception that gambling is sinful or devilish.
What is a white rope-like structure in the spongy part of the femur?
The white rope-like structure in the spongy part of the femur is likely the Medullary cord, which consists of reticular fibers and cells in the bone marrow. These fibers provide structural support and help regulate the production and movement of blood cells.
What is found on the outer surface of the epiphysis?
The outer surface of the epiphysis is covered by a layer of hyaline cartilage known as articular cartilage. This cartilage helps cushion the joint and allows for smooth movement of the bones in the joint.
What are the names of the ankle and toe bones?
Put simply, the ankle and foot bones are called the tarsals and metatarsals respectively. In groups, if you look at them as you would your hand, the toes (or fingers) are called the phalanges, the long bones that connect the toes to the foot are called the metatarsals, and then the actual bones of the foot are the tarsals. Without giving you a diagram, I will name them the best I can if you follow along using your own foot :-)
All toes are called digits or phalanges, and are ordered using roman numerals, with I being the big toe and V being the pinkie toe. Toe I, the big toe, is called the Hallux.
The largest tarsal bone is the calcaneus, or heel (which attaches to the Achilles tendon (aka calcaneal to form the calf muscles). If you move down from the heel, you will find the 2nd largest tarsal bone, the talus, which is the "ridge" of the top of your foot -- the part that hurts really bad if someone stomps on it. If you follow that part of your foot toward your big toe, you will feel where it flexes a little at the end of the talus. This is a wide but short bone called the navicular....those three bones together (the talus, calcaneus, and navicular) form what would be synonymous to the wrist..only in the foot. Toward the outside of the foot immediately next to the navicular is what is called the cuboid, which if you are looking down at the top of your foot, is a rounded part that lines up with the pinkie toe (the outside of the foot). This bone is longer than the navicular....
OK...now there are three small bones called cuneiform that are lined up with the cuboid on top (since the navicular was shorter than the cuboid), which are identified as medial cuneiform (on the big toe side of the foot), the intermediate cuneiform, and the lateral cuneiform.
OK...now to the part you can feel -- There are 4 bony pieces to each "toe" (except the big toe, which has 3). So starting with the hallux (big toe), if you run your finger between toes I & II, you will feel where the bones separate. That long bone that connects to the big toe is called the first metatarsal. The next part is called the proximal phalanx (if you bend your big toe, its the larger part where it bends at the top of the foot), and the end of the big toe is called the distal phalanx. Toes II - V have a part that the big toe doesn't have...they also start at the metatarsal (numbered according to the toe), which goes to the proximal phalanx. The difference is on toes themselves..if you notice, your big toe can only bend in two places--but each little toe bends in three. So after the proximal phalanx is the middle phalanx, then the distal phalanx.
Good luck :-)
How much stress can a femur withstand before breaking?
The femur is the strongest and thickest bone in the body. It can take about 600 LBS of vertical force before it breaks. That pretty much means that if you set it up so it was horizontal, with a space in between the things holding it up, and put 600 pounds on it, it would snap. That's strong.
Is skull an example of irregular bone?
Yes, the skull is an example of an irregular bone. Irregular bones do not fit into the other categories of bone shapes (long, short, flat, or sesamoid) and have complex shapes with varying functions. The skull is made up of several irregularly shaped bones that protect the brain and support facial structures.
What is the scientific word of collar bone?
The Medical term for the Collar Bone is called the 'CLAVICLE'.
The clavicle or the collarbone makes up the top part of the pectoral (shoulder) girdle.
What is it called when a fracture breaks the skin?
When a fracture breaks the skin, it is a compound fracture or open fracture. Because the skin is broken, there is a possibility of infection.
What is used up first yellow or red bone marrow during starvation?
During starvation, yellow bone marrow is used up first because it stores fat as an energy reserve, which can be broken down and utilized by the body. Red bone marrow is responsible for producing blood cells and is a more critical component for survival.
