Adrenal

Question 1

The urogenital system develops from ___ ___.

Answer 1

Intermediate mesoderm

Question 2

The adrenal gland starts to form at which week?

Answer 2

6th week

Question 3

The adrenal cortex is derived from ____. The adrenal medulla is derived from ___.

Answer 3

Cortex = mesoderm. Medulla = neural crest cells (sympathetic ganglion)

Question 4

What layers of the cortex are present at birth? At what age is the other layer developed?

Answer 4

The zona glomerulosa (outer most; aldosterone) and zona fasciculata (middle; cortisol) are present at birth. The zona reticularis (sex hormones) isn’t established until 3 years

Question 5

True/false: The adrenal gland is within Gerota’s fascia?

Answer 5

True

Question 6

True/false: The adrenal gland is derived from the same embryologic origin as the kidneys?

Answer 6

False. The effect of this is that neither renal agenesis nor renal malposition affects adrenal development and location.