Exam 2 Lecture

Question 1

Identify the function of the skeletal system

Answer 1

Support- framework
Protection
Anchorage
Mineral storage- ca2+, phosphate
Energy storage- yellow BM=fat
Blood cell production- hematopoiesis - RBM

Question 2

Inorganic components of bone matrix

Answer 2

2/3rds of bone mass is calcium phosphate Ca3(PO4)2, matrix mineral (salts), also includes calcium salts and ions such as fluoride and magnesium
Function = strength, resists compressions

Question 3

Organic components of bin matrix

Answer 3

Proteins,
1/3 of protein mass is protein/ Collagen fibers,
Ground substance
Function= gives flexibility withstands twisting