Bone Growth + Hormones

Question 1

Where does bone growth?

Answer 1

at the epiphyseal plate at the zone of proliferating (mitosis) cartilage and zone of hypertrophic cartilage (growth in size) makes new cartilage and zone of ossification makes new bone

hyaline cartilage is less as we grow older while the amount of bone in the epihyseal plate increases

Question 2

What does resorbing mean? what does it help with?

Answer 2

removing old osseous tissues; helps maintains calcium and phosphate levels in body

Question 3

Why does bone remodeling occur?

Answer 3

when there is stress occurring; osteocytes detect and communicate with the osteoblast to make more bone

more stress more bone

Question 4

How does stress affect our bones?

Question 5

As we age what occurs more?

Answer 5

resorption increases; over the amount of bones forming

Question 6

Name two hormones that affect bones

Answer 6

Calcitonin
Parathyroid Hormone

Question 7

____________ is produced by the ________ gland when _______ in blood is __________.

Answer 7

Calcitonin
Thyroid
calcium
increased

puts calcium in our bone

Question 7

_______ hormone (PTH) is produced by the ________ gland when ______ calcium levels in blood.

Answer 7

Parathyroid
Parathyroid
decreased

Question 8

GO BACK TO PPT; HORMONES