Skeletal System

Appendicular

is the upper and lower extremities and the bony girdles.

Osteoclasts

Bone destroying cells (growth and healing)

study of bone

Is called Osteology.

Osteoblasts

Bone- building cells.

Hemopoiesis:

Red marrow can produce white, red blood cells. It can also produce platelets. When you’re a infant this is done by the spleen and. The liver.

It’s estimated that 1 million blood cells are produced per second.

Mineral Storage

Some minerals that bones store at CA, P , Mg , Na, k , Pb ,U and Sr

Long Bones:

Longer than they are wide

They function as a lever

Most of the long bones include the legs and arms

Flat Bones:

Broad dense surfaces for muscle attachments

For the protection of underlying organs like ribs, shoulder girdles

Sesamoid Bones:

These bones are embedded within a tendon or a muscle for example a knee cap (patella) is embedded. This can also be applied to the Adam’s apple in the neck (hyoid bone)

Short bones:

Shaped like a cube

They are found in confined spaces and they also transfer forces. An example of this is the wrists and ankles.

Irregular bones:

These bones have various shapes and many surfaces for their muscle attachments. These examples include vertebrae and pelvis.

Osteocytes

Mature bone cells

Axial

Axial forms the body’s axis and it protects major organs

Appendicular

Appendicular is the upper and lower extremities and the bony girdles

What are the key functions of bone?

These key functions are maintaining the structure of the human body and they also play a role in maintaining life.

What does the bones support?

supports tissues and organs in the body.

What bones protect the lungs and heart?

Ribs

What bones protect the pelvic viscera?

Pelvic cavity

What bones protect the central nervous system?

Skull and vertebral column

What are some bones that you are responsible for?

Carpals

Femur

Ulna

Patella

Radius