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Functions Of Bone
Your bones are more than a structure. They are highly evolved dynamic organs, capable of functions such as protection, movement, and mineral storage.6,7
Below are some of its functions in brief:
Bones offer support for internal structures. They bear the weight of your body and enable an upright posture.6,7
Your sturdy bones along with muscles protect the delicate internal organs, which would otherwise be prone to injury.6
Your bones are highly evolved structures that perform diverse mechanical functions.8 The counterforce offered by the bones to a contracting muscle is what initiates the locomotion.9 A combined effort of bone and skeletal muscle is needed to perform any form of physical activity.6
Up to 70% of the bone weight is made of minerals; calcium is the most abundant mineral accounting for 99% of the body’s mineralized tissues.10 Bones act as a calcium warehouse, allowing nerves and muscles to function properly.6 The human body cannot produce calcium. Its only source of calcium is diet or nutritional supplements. In case your body does not absorb an adequate amount of calcium, your bones may become weak.11
Blood Cell Production
Most of your bones have a soft, spongy tissue called bone marrow, which is responsible for the production of blood cells. Bone marrow has many blood vessels and has two types of cells.
- The red marrow cells are responsible for the production of blood cells (RBC, WBC, and platelets)
- The yellow bone marrow is composed of fat cells.12
Did you know there are more than just minerals in your bones? Your bones have bone marrow adipose tissues, which not only act as an energy reservoir for the body but also contribute to immune function and other bodily processes.13
Your body consists of four types of bones and each type of bone has a distinctive shape and function.14
The different types of bones include:
Thus, bones are unique connective tissues that perform several vital functions, including support, mobilization, and protection of internal organs.1
Long bones are thin, long cylindrical bones and are present in the arms and legs. They function as ‘levers’ that move when the muscles contract.
Short bones have approximately equal dimensions (length, width, and thickness), and usually appear cuboid in shape. The wrist (carpals) and ankle (tarsals) contain short bones.
Flat bones have a thin, flattened, and slightly curved structure. They are present in the skull (cranium), and ribs.
Irregular bones have a complex shape. One of the examples of irregular bones is vertebrae (spine).