Anatomy Flashcards
(31 cards)
What are the layers of the adrenal gland?
Zona glomerulosa, zona fasciculata, and zone reticularis
What is the inner layer of the adrenal gland called
Medulla
What cells are located within the medulla?
Chromaffin cells
Catecholamines are produced in what layer of the adrenal gland?
Medulla
What hormone are chromaffin cells in the medulla responsive to?
ACh
Epinephrine and Norepinephrine are produced by what cells within the adrenal medulla?
Chromaffin cells
What layer of the adrenal gland produces androgens?
Zona reticularis
What hormones regulate the zona reticularis?
ACTH and CRH
What hormones are produced in the zona reticularis
DHEA
ACTH and CRH act on the zona reticularis and cause production of what type of hormones?
Androgens (DHEA)
What layer of the adrenal gland produces glucocorticoids?
Zona fasciculata
What hormones regulate the zona fasciculata
ACTH and CRH
What hormone is produced in the zona fasciculata?
Cortisol
What hormone regulates the zona glomerulosa?
Angiotensin II
What embryological tissue is the posterior pituitary gland derived from?
Neuroectoderm
What hormones are released from the neurohypophysis (posterior pituitary)?
Oxytocin and Vasopressin (AD)
Where is the location of the synthesis of oxytocin and ADH?
Both in hypothalamus within:
Oxytocin - paraventricular nucleus
ADH - supraoptic nucleus
How do oxytocin and ADH get from hypothalamus to posterior pituitary gland?
Transported via neurophysins
What hormones are secreted from the anterior pituitary gland (adenohypophysis)?
FLAT PiG: FSH, LH, ACTH, TSH and Prolactin, GH
Which anterior pituitary hormones are basophils?
FSH, LH, ACTH, TSH
Which anterior pituitary hormones are acidophils?
Prolactin, GH
Where is melanotropin (MS) secreted from?
Intermediate lobe of the pituitary
What tissue is the anterior pituitary derived from?
Oral ectoderm (Rathke pouch)
From what precursor are ACTH and MSH derived from
Proopiomelanocortin (POMC)
