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The Skeletal System Consists of?
(HINT: there are 4)
1. Skeletal Bones
2. Cartilage
3. Ligaments
4. Connective tissue to stabilize the skeleton
How long does it take for bones to replace themselves?
a. 5 years
b. 7 years
c. 9 years
d. 10 years
e. none of the above
10 years
What are the two divisions of the Skeleton?
1. Axial
2. Appendicular
How does the skeleton provide support?
provides the framework for attachment of other organs
,1. what minerals does the bones store?
and
2. what percentage of each are present in the bones?
1. Calcium ions and phosphate ions
2. 98% of the body's calcium ions are in bones, the percentage of phosphate is not
needed for the exam
what three types of blood cells are created in the bones?
1. erythrocytes (red BLD cells)
2. leukocytes (wh/t BLD cells)
3. Platelets (clotting cells)
TRUE/FALE.
MUS pull on bones to produce movement
True
Name 4 methods in which the bones are used as protection for vital organs in the
body
1. ribs protect heart and lungs
2. skull protects the brain
3. vertebrate protects the spinal cord
4. pelvic bones protect the reproductive organs
, What is osseous tissue?
a. connective bone tissue
b. connective muscle tissue
c. connective nervous tissue
d. connective skin tissue
e. none of the above
supporting connective tissue
the matrix of bone consists of:
calcium phosphate (2/3 of bone mass) and hydroxyapatite crystals
what is the function of hydroxyapatite crystals?
to resist compression
name 3 histological facts about collagen fibres WRT bones
1. make up 1/3 of bone matrix
2. contribute to the tensile strength of bones
3. collagen and hydroxyapatite make bone TISS strong
what percentage of bone mass do bone cells contribute?
a. 10%
b. 5%
c. 2%
d. 90%
e. none of the above