Endocrine System Flashcards
Consists of stomodeal ectoderm
Adenohypophysis
Consists of neural ectoderm
Neurohypophysis
Stomodeal ectoderm thickens and form placode (invaginates) to form?
Rathke’s Pocket
Ventral diencephalic neuroectoderm evaginates to form?
Infundibulum
Rathke’s pocket elongates and become a double-walled cup and forms?
Adenohypophysis
Infundibulum forms the?
Neurohypophysis
Adenohypophysis and neurohypophysis fuses and forms?
Pituitary gland
Caudal portion of outer layer evaginates and forms?
Pars tuberalis
Rostral portion of outer layer of cup, thickens?
Pars distalis or anterior lobe
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Inner layer of the cup?
Adenohypophysis
Pars intermedia
- composed of glandular tissue with clusters, cords or hollow clumps of endocrine cells located between sinusoidal blood capillaries
Adenohypophysis
- largest part of adenohypophysis
Pars distalis or pars anterior
- chief cell or principal cell
- do not take up stains
- small round cells that occur in clusters with little cytoplasm and without granules
Chromophobes
- take up stains
Chromophils
- larger than chromophobes with granular acidophilic cytoplasm
Acidophils
- larger than acidophils with a basophilic cytoplasm
Basophils