types of bones, anatomy of long bones

Question 1

long bones

Answer 1

• mostly in extremities
• strong shaft made of compacted bone

tissue, ends consist of spongy tissue.

• Wolf’s Law: a bone will respond to areas of
  high stress by growing new bone cells.

Question 2

short bones

Answer 2

• same dimensions in all directions.
• cube-like, found in wrist and ankle
• good for dexterity and agility (fine
  movements)

Question 3

flat bones

Answer 3

• protects delicate organs, anchor
  point for many muscles (ex. Skull, ribs, scapula,
  sternum, pelvis)

Question 4

irregular bones

Answer 4

– fit none of above
descriptions
- example: Vertebrae, facial bones
- each have special purpose

Question 5

sesamoid bones

Answer 5

• is a bone embedded in a tendon. Provides leverage, allows greater force production in muscle
  ex. patella

Question 6

anatomy of a long bone

articular catilage

Answer 6

• smooth, bloodless, porous

Question 7

anatomy of a long bone

Compact Bone

Answer 7

• Dense, forms walls of diaphysis of long bones

Question 8

anatomy of a long bone

Medullary Cavity

Answer 8

• Inside of diaphysis, filled with red and yellow marrow
• RBCs made in red marrow, fat stored in yellow marrow
• Kids have higher [red marrow] than adults in long bones

Question 9

Periosteum

Answer 9

• fibrous, cellular, vascular
• Covers length of bone

Question 10

Epiphysis

Answer 10

• End of long bone

Question 11

Diaphysis

Answer 11

• Shaft of long bone
• Marrow filled,
  surrounded by compact
  bone