Endocrine-Bone Metabolism and Management

Question 1

Where are osteoblasts located

Answer 1

at the surface of the bone tissue

Question 2

Once the osteoblasts are stored within the matrix, it becomes

Answer 2

an osteocyte

Question 3

where are osteoclasts located

Answer 3

within the calcified matrix

Question 4

what cell resorbs bone by decreasing the pH which causes hydroxyapatite crystals to dissolve

Answer 4

osteoclasts

Question 5

these cells are inhibited by estrogen

Answer 5

osteoclasts (in men too)

Question 6

hormone that is released in response to low blood calcium to maintain calcium in a narrow range

Answer 6

parathyroid hormone

Question 7

how does parathyroid hormone act on the kidneys

Answer 7

stimulate resorption of calcium

Question 8

stimulated by high blood calcium concentrations

Answer 8

calcitonin (inhibits osteoclasts)

Question 9

parathyroid hormone acts in an opposite way than

Answer 9

calcitonin

Question 10

main source of vitamin D

Answer 10

sun

Question 11

What is the Vitamin D that we actually use for bone metabolism

Answer 11

Calcitriol (the kind you get from D3 aka the sun)

Question 12

necessary for growth and maturation of the skeleton. causes osteoclasts to resorb bone when levels are too high

Answer 12

thyroid hormone

Question 13

osteoporosis affects bones with higher proportion of ____ bone

Answer 13

cancellous

Question 14

Know the difference between t and z score

Answer 14

for pts with osteoporosis.