Endocrine Embryology Flashcards

1
Q

What are the 3 ways the hypothalamus functions?

A
  1. Endocrine by releasing ADH and Oxytocin.
  2. Secretes releasing and inhibiting hormones.
  3. Adrenal gland effects
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2
Q

How does Rathkes pouch form and what is its derivitive?

A

Ectodermal outpocketing.

Forms anterior pituitary or adenohypophysis.

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3
Q

How is the infudibulum formed and what does it make?

A

Extention of diencephalon.

Forms Posterior pituitary or neurohypophysis, and pituitary stalk.

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4
Q

What are herring bodies, and where are they found?

A

Large bulbs of neurosecretory cells that store products. Found in posterior pituitary.

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5
Q

Where are Cromophils and Cromophobe cells located?

A

Anterior pituitary.

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6
Q

What do follicular cells make? what do parafollicular cells make and where do they originate from? Where are these cells located?

A

Follicular: T3 T4
Para: Calcitonin from untimobranchial body from 4th pouch.

All from thyroid gland.

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7
Q

Which pouches do the inferior and superior portion of the parthyroid gland come from?

A

Superior=4. Inferior=3

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8
Q

What germ layer is the adrenal cortex and medulla made from?

A

Cortex=Mesoderm

Medulla=Ectoderm.

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9
Q

How is the pancreas formed? What can happen if it does form properly?

A

Dorsal and ventral buds form and fuse. Annular Pancreas occurs when they dont fuse.

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