Wk1 Endocrine Histo

Question 1

Embryologic origin of posterior pituitary:

Answer 1

neuroectoderm

Question 2

Embryologic origin of anterior pituitary:

Answer 2

oropharynx ectoderm (Rathke’s pouch)

Question 3

Four sections of pituitary gland:

Which are posterior and anterior?

Answer 3

Posterior – pars nervosa

Anterior – Pars tuberalis, distalis, intermedia

Question 4

Bundle of axons from paraventricular nucleus and supraoptic nucleus to posterior pituitary:

Answer 4

hypothalamohypophyseal tract

Question 5

Portion of pituitary with no direct arterial supply:

Answer 5

anterior lobe

Question 6

Two cells types in pars distalis:

Answer 6

chromophobes

chromophils

Question 7

Two types of chromophils in pars distalis:

Answer 7

Acidophils

Basophils

Question 8

Two types of Acidophils in the pars distalis:

Answer 8

Somatotropes

Mammotropes

Question 9

Somatotropes secrete?

Answer 9

GH (growth hormone)

Question 10

Mammotropes secrete?

Answer 10

Prolactin

Question 11

Three types of Basophils in the pars distalis:

Answer 11

thyrotropes

gonadotropes

corticotropes

Question 12

Thyrotropes release?

Answer 12

TSH

Question 13

Gonadotropes release?

Answer 13

FSH

LH (ICSH in males)

Question 14

Corticotropes release?

Answer 14

ACTH

MSH (melanocyte stimulating hormone)

Question 15

Location of Rathke’s cysts:

Answer 15

Pars intermedia

Question 16

Cells in pars tuberalis:

What do they release:

Answer 16

Basophilic

FSH, LH

Question 17

Neuron terminals of pars nervosa, containing accumulated oxytocin and vasopressin (ADH)

Answer 17

Herring bodies

Question 18

Supportive cells found throughout posterior lobe?

Answer 18

pituicytes

Question 19

Secretion induced by suckling (milk-ejection reflex):

Answer 19

oxytocin

Question 20

causes contraction of myoepithelial cells surrounding mammary glands:

Answer 20

oxytocin

Question 21

stimulates uterine SM contraction

Answer 21

oxytocin