Veterinary Endocrine Histology

Front 1

Function and location of parathyroid glands

Back 1

maintain ratio of Ca2+:Pi
adhere to surface of thyroid gland
have internal and external pair

Front 2

4 ways Parathyroid hormone increases plasma [Ca++]

Back 2

1.increase osteoclasts ( degrade bone)
2.decrease osteblasts(stop making bone)
3.increase Ca++ reabsorp. by kidney
4. increase formation of vitamin D (increase Ca++ uptake from DCT)

Front 3

Hormones secreted by the cortex of the adrenal gland

Back 3

1. mineralcorticoids
2. Glucocorticoids

Front 4

example of a mineralcorticoid and it's function

Back 4

aldosterone: increases Na+ reabsorption and decreases K+ reaborp. in the Distal Convoluted Tubule

Front 5

Example of a glucocorticoid and it's function

Back 5

Cortisol: effects glucose control and amino acid and lipid metabolism

Front 6

Hormones secreted in the medulla of the adrenal glands

Back 6

catecholamines
epinephrine
norepinephrine

Front 7

3 cortex regions of the adrenal gland

Back 7

Zona glomerulosa
Zona fasciculata
Zona reticularis

Front 8

Zona glomerulosa

Back 8

cells in clusters or arches secrete mineral corticoids

Front 9

Zona fasciculata

Back 9

cells in columns, sinusoidal capillaries
secrete glucocorticoids

Front 10

Zona reticularis

Back 10

dark inner most band
secrete glucocorticoids

Front 11

2 ways to recognize adrenal gland

Back 11

1. central medullary vein
2. capsule

Front 12

What do Chromaffin cells secrete and what stimulates secretion?

Back 12

epinephrine and norepinephrine

innervated by sympathetic neurons that cause secretion

Front 13

Where are chromaffin cells located and why do they stain brown with potassium dichromate?

Back 13

medulla of adrenal gland
rxn w/ chromated and norepinephrine

Front 14

describe blood flow through the adrenal gland?

Back 14

1. arteries enter capsule
2. Cortical sinusoids
3. thru medulla
4. Collect in veins
5. exit medulla

Front 15

when the adrenal medulla is exposed to high glucocorticoid it secerets

Back 15

increased epinephrine

Front 16

when adrenal medulla is exposed to decreased glucocorticoids it secretes?

Back 16

increased norepi.