11.9 Bone Growth and Remodeling

Question 1

What is endochondral ossification?

Answer 1

process of bone growth where hyaline cartilage is produced and then replaced by bone

Question 2

What is intramembranous ossification?

Answer 2

synthesis of bone from an embryonic tissue called mesenchyme resulting in flat bones

Question 3

What is the epiphyseal plate?

Answer 3

disk of hyaline cartilage that is actively being produced by chondrocytes

Question 4

What is the epiphyseal line?

Answer 4

fusion point of the diaphysis and epiphysis in adults

Question 5

What are osteoblasts?

Answer 5

cells that make bone by laying down collagen and hydroxyapatite

Question 6

What does the space left by osteoblasts become and what do osteoblasts in those spaces become?

Answer 6

lacuna
osteocyte

Question 7

What are osteoclasts?

Answer 7

cells the continuously destroy bone by dissolving hydroxyapatite crystals

Question 8

What hormones increase blood calcium levels?

Answer 8

parathyroid hormone
calcitriol

Question 9

What hormone decreases blood calcium levels?

Answer 9

calcitonin