Lecture 3 notes

Question 1

Functions of the skeleton

Answer 1

1) Support and lever action (for movement)
2) Protect organs (skull, ribs)
3) Blood cell production (RBC’s, WBC’s)
4) Stores calcium (Ca++ needed by all cells, especially muscle cells)

Question 2

How is bone dynamic?

Answer 2

Grow, repair, thickens, undergoes atrophy

Question 3

Living cells must have

Answer 3

O2, nutrients, communication, etc.