❗Endocrine Histology and Embryology Flashcards
The _____________ have fenestrated endothelium.
endocrine glands
The posterior pituitary hangs on the _____________ which is beneath the median eminence of the hypothalamus.
infundibular stalk
The anterior pituitary is also called the ___________.
adenohypophysis
The anterior pituitary is called the ____________.
pars distalis
What divides the anterior and posterior pituitaries?
The pars intermedia
The posterior pituitary is also called the ____________.
pars nervosa
The infundibular stalk (also called pas tuberalis) is made of _______________.
axons, mostly, because this connects to the posterior pituitary
Oxytocin and ADH are made by _______________.
cell bodies in the supraoptic and paraventricular nuclei
Which artery supplies the pituitary gland?
The superior hypophyseal artery
The hormones secreted by the hypothalmus onto the anterior pituitary must pass through ________________.
the hypophyseal portal system (after being made in the nuclei superior to the pituitary gland)
The posterior pituitary hormones travel through the ____________ to be secreted.
axons of the supraoptic and paraventricular cells
These axons parallel the trabecular artery.
Which hormones are secreted by the anterior pituitary?
Thyroid-stimulating hormone (TSH) Growth hormone (GH) Adrenocorticotropic hormone (ACTH) Follicle-stimulating hormone (FSH) Luteinizing hormone (LH) Prolactin (PRL)
Cutting from the outside to the inside of the adrenal gland, you pass through which layers?
Capsule Zona glomerulosa (stains darkly) Zona fasciculata Zona reticularis Medulla Medullary vein
What two arteries supply the adrenal gland?
The long cortical artery dives deep (supplying the adrenal medulla) and the subcapsular plexus (supplying the capsular region)
The cortical region of the adrenal gland (reticularis and fasciculata) produce what kind of hormones?
Steroid (made from cholesterol)
What kind of hormones does the medullary region produce?
Norepinephrine, epinephrine, and enkephalins
The _______________ part of the adrenal medulla is innervated by the autonomic nervous system.
medullary
The subcapsular plexus is in the __________ layer.
zona glomerulosa
The thyroid is histologically broken into _________________.
follicles
The thyroid follicles are surrounded by _______________.
calcitonin-secreting (clear) cells and blood vessels
Describe the layout of thyroid vasculature.
The thyroid has two arteries – the inferior and superior thyroid arteries –and two veins –the inferior and superior thyroid veins.
___________ enters the thyroid follicles and gets converted to __________.
Iodide; iodine
Colloid is inside the _____________.
follicles
Where is the parathyroid?
They are on the posterior side of the thyroid.
