Overview Flashcards
(31 cards)
Where are the adrenal glands located?
on top the kidneys
retroperitoneal
what is the shape of the right adrenal gland?
triangular
what is the shape of the left adrenal gland?
semilunar
What are the areas of relation of the right adrenal gland?
hepatic
IVC
diaphragm
kidney
What are the areas of relation of the left adrenal gland?
stomach
pancreas
diaphragm
kidney
What is the cortex of the adrenal glands?
outer covering of adrenal glands
When and where does the adrenal glands originate?
Originates around 5th week from mesodermal tissue near gonads on the adrenogenital ridge
What color does the adrenal glands appear?
yellow due to its high lipid content
How much of the adrenal gland does the cortex account for?
about 80% to 90% of gland’s volume
Where else can cortex ectopic tissue be found?
ovaries, spermatic cord, and testes
What does the cortex differentiate into?
thin definitive cortex and a thicker inner fetal cortex
What are the three zones of the cortex?
Glomerulosa
Fasciculata
Reticularis
what does the three zones of the cortex produce?
mineralocorticoids, glucocorticoids, and androgens.
How much of the adrenal gland does the medulla take up?
20%
What color is the medulla?
reddish brown
where does the medulla originate?
ectoderm that arises from the neural crest
Where does neural crest cells migrate to?
the para-aortic and paravertebral areas
where else can ectopic medulla cell be found?
at organ of Zuckerkandl (left of aortic bifurcation near IMA origin). Can also find it in the neck, bladder, and para-aortic regions.
What type of cells does the medulla contain?
chromaffin cells
What does chroffmin cells produce?
Produces epinephrine and norepinephrine
What is the blood supply of the suprarenal glands?
superior/middle/inferior suprarenal arteries
what is the superior suprarenal arteries a branch of?
inferior phrenic arteries
What is the middle suprarenal arteries a branch of?
aorta
what is the inferior suprarenal arteries a branch of?
renal arteries
