Class 17 Flashcards
Q9. What is synarthroses?
(together, joint); IMMOVABLE
Q9. What is teh functional class. of sutures?
synarthroses
Q9. What is teh structural class. of the gomphoses?
fibrous
Q9. What is the central canal of the osteon?
the hollow, longitudinal running canal that houses the blood vessels, lymphs, and nerves for bone.
Q9. What is the diaphysis?
the shaft of the long bone
Q9. What is the disorder characterized by decreased bone mass and susceptibility to fracture?
osteoporosis
Q9. What is the function of compact bone?
to support, to protect, and to resist stress.
Q9. What is the function of spongy bone tissue?
stores RED bone marrow and provides support
Q9. What is the functional class. of gomphoses?
synarthroses
Q9. what is the hard calcified matrix of bone tissue made of?
crystallized mineral salts (50%), collagen fibers (25%), and water (25%)
Q9. What is the interoseous membrane?
the ligament that connects the ulna and radius OR the tibia and fibula. this is considered a JOINT because it connects the two bones.
Q9. What is the matrix of bone tissue?
25% water, 25% collagen fibers, and 50% crystallizated mineral salts
Q9. What is the movement of sutures?
its very subtle (none, according to the text)
Q9. What is the primary hormone involved in regulating blood calcium levels, causing increase in blood calcium levels?
PTH
Q9. What is the structural and functional classifications and movement of synchondroses?
cartilaginous, synthroses, none
Q9. What is yellow bone marrow? Function?
consists mainly of adipose cells, which stores triglycerides, a potential chemical energy reserve.
Q9. What mneumonic is used to remember the classification of joints?
S. A. D. (synarthroses, amphiarthroses, diarthroses)
Q9. What purpose does the unique structure of the osteon serve?
permits delivery of nutrients and removal of waste products from metabolically active but imprisoned bone cells?