Bone Markings/Bone Marrow/Osteoporosis

Bone Markings

join one bone to another through ligaments

What does bone markings provided?

a surface for the attachment of muscles through tendons

Process

bony prominence or projection

Condyle

a rounded knuckle-like prominence usually at a point of articulation

Epicondyle

small projection

Head

rounded articulating process at the end of a bone

Spine

a sharp, slender projection

Tubercle

a small rounded process

Tuberosity

a large rounded process

Bone Marrow - Yellow

medullary cavity of long bones

Fat storage

Bone Marrow - Red

Hematopoietic tissue; forming new red blood cells.

Where is red bone marrow found in adults?

vertebrae, hips, sternum, ribs, cranial bones, proximal ends of femur & humerus.

What does red bone marrow form?

RBC, platelets, some WBCs and destroys old RBCs and some foreign materials

Osteoporosis

characterized by low bone mass and a deterioration of the osteon; more osteoclasts

When the Osteoporotic bone becomes porous & light, What happens to the bones?

Compact bone - thinner

Spongy bone - fewer trabeculae

loss of bone mass leads to fractures