HORMONES OF ADRENAL MEDULLA

Question 1

What is the hormones of the Adrenal Medulla?

Answer 1

Catecholamines

Question 2

Catecholamines is synthesized from?

Answer 2

Tyrosine

Question 3

This hormones is synthesized from tyrosine

Answer 3

CATECHOLAMINES

Question 4

This is inside the chromaffin cells

Answer 4

Tyrosine

Question 5

This serves as a precursor for the Catecholamines?

Answer 5

Tyrosine

Question 6

What are the 3 important Catecholamines?

Answer 6

Epinephrine
norepinephrine and;
dopamine

Question 7

This is the metabolite of dopamine

Answer 7

Homovanillic acid (HVA

Question 8

Epinephrine and Norepinephrine metabolite

Answer 8

Metanephrines/Normetanephrines and Vanillylmandelic acid (VMA)

Question 9

Metanephrines/Normetanephrines will further cleave to become the final metabolite of Epinephrine and Norepinephrine called __________________?

Answer 9

Vanillylmandelic acid

Question 10

This mobilizes energy stores by converting glycogen to glucose which allows the voluntary muscle exertion, and pain.

Answer 10

Epinephrine

Question 11

This function as a neurotransmitter affecting the vascular smooth muscle and hear

Answer 11

Norepinephrine

Question 12

Norepinephrine functions as a neurotransmitter affecting the?

Answer 12

vascular smooth muscle and heart

Question 13

What releases the norepinephrine?

Answer 13

postganglionic sympathetic nerves

Question 14

Functions as a neurotransmitter in the brain affecting the vascular system

Answer 14

Dopamine

Question 15

The Dopamine functions as a neurotransmitter in the brain affecting the?

Answer 15

Vascular system

Question 16

This is a tumor in adrenal medulla: excess epinephrine. Causes hypertension, headache and Increased heart rate

Answer 16

Pheochromocytoma

Question 17

This is a malignant tumor of adrenal medulla seen in children.

Abdominal mass

Answer 17

Neuroblastoma

Question 18

best screening test for pheochromocytoma because the metabolites of epinephrine and norepinephrine can be excreted out in the urine

Answer 18

Urinary metanephrine

Question 19

What is the reason why urinary metanephrine is the best screening test for pheochromocytoma?

Answer 19

because the metabolites of epinephrine and norepinephrine can be excreted out in the urine

Question 20

In the laboratory assay of Catecholamines what are the specimens used?

Answer 20

 Plasma and/or urine
 Urinary metanephrine
 Urinary VMA and HVA

Question 21

Transcribe HVA and VMA

Answer 21

Homovanillic acid (HVA)
Vanillylmandelic acid (VMA)