Exam 5 graded quiz 2024

Question 1

In homestatic regulation, which mechanism receives information and processes it to be decided on a comand

Answer 1

control center

Question 2

Where does a pro hormone undergo further processing prior to packaging into a secretory granule

Answer 2

Golgi

Question 3

What is an example of a short, negative feedback loop

• Thryrotropin release hormone = thyrotropin releasing hormone
• IGF 1 = growth hormone
• Cortisol = ACTH
• GH = Growth hormone relasing hormone

Answer 3

GH = growth hormone releasing hormone

Question 4

If a hormone concentration result in 50% of the maximal response, what could have happened to a hormone receptor number on target cells

Answer 4

increased

Question 5

For tyrosine kinase receptors, on which domain does the tyrosine kinase activity occur

• transmembrane domain
• nuclear domain
• intracellular domain
• extracellular domain

Answer 5

intracellular domain

Question 6

Which cell type in the anterior pituitary synthesizes and releases prolactin

• somatoptroph
• corticotroph
• thyrotroph
• lactotroph

Answer 6

somatotroph

Question 7

What is removed from ADH or oxytocin as the hormone travels down the axon to the posterior pituitary

Answer 7

neurophysin

Question 8

How does growth hormone achieve its indirect anabolic actions

• cortisol
• somatostain
• GnRH
• IGF-1
• IGF-2

Answer 8

through IGF-1 and IGF-2

Question 9

What effect will low dietary iodide have on the activity of the Na/iodide symporter in the thyroid gland

Answer 9

stimulates

Question 10

Which enzyme is down regulated in sick uethyroid syndrome, resulting in low T3

Answer 10

5’ deiodinase

Question 11

If the disorder is in the pituitary in hyperthyroidism, what is the expectation for ciruclating levels of TSH

Answer 11

high TSH

Question 12

Norepinephrine is the catecholamine primarly released from the sympathetic nerve terminals and brain. true or false

Answer 12

true

Question 13

What effects do exogenous steriods have on ACTH production and relase

Answer 13

inhibit ACHT

Question 14

What is a common adrenal cortex dysfunction to affect older dogs

• addisons disease
• hyperaldesteronism
• Pituitary dependent hyperadrenalcoritcism
• Pars intermedia dysfunctin

Answer 14

pituitary dependent hyperadrenocortism

Question 15

in the pacreatic islets, what cell type is distibuted around the outer rim and produces glucagon?

Answer 15

alpha cells

Question 16

Which tissue is dependent on insulin to transport glucose

• liver
• muscle
• brain
• intestine

Answer 16

muscle

Question 17

What happens to glucose upon it entry into pancreatic beta cells

Answer 17

Immediatly phosphorylated

Question 18

Which adipose tiisue hormone is associated with improved insulin sensitivity

Answer 18

Adiponectin

Question 19

What will inhibit glucagon secretion

Answer 19

glucose

Question 20

Where does insulin promote glycogen formation

Answer 20

muscle and liver

Question 21

For which mineral is intestinal absoprtion fairly constant

Answer 21

Phosphate

Question 22

What disorder is caused by increased phopshate in blood, which will precpiptate calcium and lead to hypocalcemia

• Secondary hyperparathyroidism
• primary hyperthyroidism
• ostemomalacia
• hypoparathyroidism

Answer 22

secondary hyperparathyrodisim

Question 23

What change occurs in melatonin with age and puberty

Answer 23

decreases

Question 24

What would be the precursor for a prostanoid such as PGF3

Answer 24

Eicosapentaenoic acid

Question 25

If ionized plasma calcium concentration falls, what events will be expected to start happening

• vitamin D synthesis would be stimulated by PTH
• bone reabsorption would be inhibited
• Parathyroid hormone
  would be relased
• renal reabsoprtion of calcium would be inhibited

Answer 25

• vitamin D synthesis would be stimulated by PTH
• Parathyroid hormone would be relased