The Suprarenal Glands

Question 1

what is the labelled structure?

Answer 1

suprarenal gland

Question 2

are the adrenal glands intra or retroperiotneal?

Answer 2

retroperitoneal

Question 3

what is the embryological origin of the adrenal cortex?

Answer 3

mesodermal epithelium

Question 4

what is the embryological origin of the adrenal medulla?

Answer 4

neuroectoderm

Question 5

adrenal glands arterial supply

Answer 5

suprarenal (adrenal) arteries that arise from inferior phrenic arteries, the aorta and renal arteries.

Question 6

label the arteries supplying the adrenal glands and and which arteries they originate from

Answer 6

Question 7

into which vein does the suprarenal vein drain into:
on the right side?
on the left side?

Answer 7

right side: right suprarenal vein drains into IVC
left side: left suprarenal vein drains into the left renal vein

Question 8

what are the 3 zones of the adrenal cortex called from outermost to innermost?

Answer 8

• an outer zona glomerulosa (thin)
• a middle zona fasiculata (thick)
• an inner zona reticularis (immediately adjacent to the medulla)

Question 9

this low power image is of which endocrine gland? the lines mark which areas?

Answer 9

adrenal gland

Question 10

what are the 3 main hormones types secreted from the 3 zones of the adrenal gland?

Answer 10

• zona glomerulosa > aldosterone
• zona fasiculata > glucocorticoids (cortisol)
• zona reticularis > sex hormones