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Flashcards in Histology for Final exam Deck (17):
1

distant vs. adjacent vs. own cell signalling

endocrine vs. exocrine vs. autocrine

2

Three types of hormones

poptides & glycoproteins --> stored
steroids --> not stored, stained very eosinophilic
amino acids

3

where is pituitary gland

beneath third ventricle, connected to bottom of hypothalamus. lies in sphenoid bone

4

adenohypophysis

anterior pituitary

5

parts of anterior pituitary

pars distalis
pars tuberalis
pars intermedia

6

neurohypophysis

posterior pituitary

7

parts of posterior pituitary

pars nervosa
infundibulum
median eminance (hypothalamus)

8

embryo of neurohypophysis

from nervous tissue of hypothalamus

9

embryo of adenohypophysis

From ectoderm of roof of mouth

10

pars distalis vs pars nervosa staining

par distalis stains darker

11

Types of cells in pars distalis

Adidophils
Basophils
Chromophobes don't stain

12

Acidophils, and what they make

A type of cell in pars distalis (anterior pituitary)
somatotrophs --> growth hormone
mammatrophs --> prolactin

13

Basophils, and what they make

A type of cell in pars distalis (anterior pituitary)
Corticotrophs --> ACTH
thyrotrophs --> thyrotropin
gonadotrophs --> FSH, LH

14

Control of AP/pars distalis

achieved by hypophyseal portal system, the anatomical link between hypothalamus via hormons

15

arteries linked in hypophyseal portal system

superior hypophyseal artery -->primary capillary plexus --> capillary links --> secondary capillary plexus

16

hormones made in pars distalis

ACTH, thyrotropin, FSH, LN, growth hormone, prolactin

17

hormones released by pars nervosa

oxytocin and ADH