Cartilage & Hormones

Ground matrix for bone is BLANK, for cartilege is BLANK

dense calcium, semisolid gel

What are chondrocytes?

mature cartilage cells that maintain cartilage and secrete ECM

What is a Glycosaminoglycan? GAGs

bunch of sugars that let water in, makes slime more slimy

Proteoglycans do what?

thicken water for shock absorption

Aneural means..

no nerves

The Perichondrium is..

dense irregular CT surrounding cartilege

The Lacunae are BLANK in the ECM, its where BLANK lives

small holes, chondrocytes and osteocytes

Rank Hyl, Ela, Fib from most to least GS(ground substance)

Hyl, Ela, Fib

Rank Hyl, Ela, Fib from most to least water content

Hyl, Ela, Fib

Rank Hyl, Ela, Fib from most to least collagen matrix?

Fib, Ela, Hyl

Which of the 3 (Hyl, Ela, Fib) has equal amounts of collagen and elastin?

Which one has thick bundles of collagen?

hly, fib

Thyroxine is..deficiency results in..

major thyroid hormones, reduced bone growth

What happens when theres too much GH in childhood?

What about in adult?

Gigantism, acromegaly

What are the 2 reproductive hormones?

Estrogen and Androgen

Reproductive hormones can cause BLANK. This can cause bones to BLANK.

Reproductive hormones BLANK with age = BLANK osteoblast activity, BLANK osteoCLAST activity

bone formation to be faster than cartilage formation, stop growing earlier, decrease, increase, decrease

Androgens are..

testosterone

Menopause is..leads to..

ovaries slow down causing estrogen to drop, bone loss

Calcitonin is made by the BLANK, it does what?

thyroid gland, puts calcium into bone

Parathyroid Hormone is made by BLANK, it does what?

Too much can lead to BLANK

parathyroid gland, regulates calcium in blood, osteoporosis

Thyroid makes T..which BLANK. Also makes BLANK controlled by BLANK.

Too high=BLANK, TSH will..

T3 and T4, speed up metabolism, calcitonin, TSH, hyperthyroidism, regulate

BLANK is converted to Calcitrol by BLANK, excrets BLANK and increases BLANK

Vitamin D, kidneys, Ca2+, osteoclast activity