Anatomy Unit 4: Skeletal System

Support & protection, body movement, hematopoeisis, storage of inorganic material

Blood cell formation, occurs in bone marrow

Head, trunk

Limbs and bones that connect to limbs

Ends of a long bone

Shaft of a long bone

Hyaline cartilage, pads epiphysis

Membrane that covers bone

Hollow chamber in bone w/ bone marrow

Makes Blood, in spongy bone tissue

High fat content, in compact bone tissue

Interior membrane/lining of bone

Dense, solid bone, wall of diaphysis

Porous, stores red marrow

Bone tissue, made of collagen and sa;ts

Small chanbers which enclose osteocytes

Mature bone cells

Rings made of osteocytes and lacunae that form around a haversian canal

tubes that run parallel and allow blood vessels and nerves to pass through

Runs perpendicular to lamellae

flat, skull

Bone forms from membrane

Most bones, form from endochondral ossification

The process of turning into bone

Bones begin as hyaline cartilage, which slowly turns to bone. Can be either primary (happens in shaft) or secondary (happens in epiphyses).

Baby bone cells which forms the bone matrix/structure

Dissolve bone tissue to release minerals (aka resorption), happens if you don't get enough calcium.

Not moveable, fused together (skull)

Slightly moveable (vertebrae)

Moveable joint (knees, elbows, wrists, etc)

Soft spots on infants' skulls

Wrist

Shoulder, hip

Elbow, knee

Lower arm (can roate side to-side)

Thumb (how you can move it back and forth)

Horizontal break

Sticking out of body

Diagonal

Shattered into pieces

Not completely broken across