Ap Lecture lecture 3 def

Question 1

Replacement of cartilage with bone

Answer 1

Endochondral

Question 2

Stores fat cells, found in spongy bone

Answer 2

Yellow Marrow

Question 3

Mature cells, extensions within canaliculi, live in lacuna, MAINTAIN protein and mineral content and participate in repair of bone. MAINTAIN MATRIX

Answer 3

Osteocytes

Question 4

Bone formation

Answer 4

Ossification

Question 5

large multinucleate cells, absorb and REMOVE bone matrix, secrete acids and protein enzyme. DISSOLVE BONE MATRIX

Answer 5

Osteoclasts

Question 6

Secretion in parathyroid when calcium levels are low. ABSORBTION takes place

Answer 6

PTH

Question 7

Forms blood cells, fills spaces between trabeclae. Found in flat bones

Answer 7

Red Marrow

Question 8

Hydroxyapatite 2/3, Collagen 1/3

Answer 8

Bone matrix

Question 9

Mesenchymal cells divide produce osteoblasts, in inner cellular layer of periosteum/endosteum, assist in fracture repair

Answer 9

Osteogenic

Question 10

Thick fibrous connective tissue sheet on forearm (ulna, radius)

Answer 10

Interosseous membrane

Question 11

Accumulation of calcium salts and bone

Answer 11

Calcification

Question 12

Secretion in thyroid when calcium levels are high. SECRETION takes place

Answer 12

Calcitonin

Question 13

Replacement of mesenchume with bone

Answer 13

Intramembranous

Question 14

Immature cells, PRODUCE new bone matrix during ossification, surrounded by bone matrix become osteocytes

Answer 14

Osteoblasts