XIV - Endocrine System Flashcards Preview

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Flashcards in XIV - Endocrine System Deck (77)
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1

Adenohypophysis: main cellular part of anterior pituitary

pars distalis

2

Adenohypophysis: contains MSH (melanocyte stimulating hormone)

pars intermedia

3

Adenohypophysis: small collar of cells around infundibular stalk, contains portal venules

pars tuberalis

4

Neurohypophysis: main cellular part of posterior pituitary

pars nervosa / infundibular process

5

Neurohypophysis: connects posterior pituitary to brain

infundibular stalk

6

Neurohypophysis: region of nervous tissue above the stalk, forms floor of the 3rd ventricle

median eminence

7

Surgical procedure for a sellar lesion

Transnasal Transsphenoidal Hypophysectomy

8

Anterior Pituitary: resting/reserve cells, degranulated acidophils and basophils

chromophobes

9

Anterior Pituitary: GH and prolactin secreting cells

acidophils

10

Anterior Pituitary: TSH, ACTH, LH & FSH secreting cells

basophils

11

Hypothalamic-Hypophyseal Portal System: supplies median eminence & infundibulum

primary capillarties/plexus

12

Hypothalamic-Hypophyseal Portal System: secretes RH & IH

median eminence & infundibulum

13

Hypothalamic-Hypophyseal Portal System: supplies pars tuberalis

portal venules

14

Hypothalamic-Hypophyseal Portal System: transports RH & IH to the pars distalis

portal venules

15

Hypothalamic-Hypophyseal Portal System: supplies pars distalis

secondary capillaries

16

Hypothalamic-Hypophyseal Portal System: site where RH and IH leave the anterior pituitary to go to the systemic blood system

secondary capillaries

17

Most abundant cell in the adenohypophysis

somatotropes

18

Most common functional pituitary tumor

prolactinoma

19

Most common presenting symptom of prolactinoma

amenorrhea

20

Posterior Pituitary: origin of large unmyelinated axons

hypothalamic neurosecretory bodies

21

Posterior Pituitary: secretes ADH

supraoptic bodies

22

Posterior Pituitary: secretes oxytocin

paraventricular bodies

23

Posterior Pituitary: neuroglial cells, supporting framework

pituicytes

24

Posterior Pituitary: dilatations of axon terminals filled with vesicles containing ADH and oxytocin

Herring bodies

25

Vertebral level of adrenal glands

T11

26

Adrenal Cortex: basophils arranged in cords of columnar or pyramidal cells, weakly responsive to ACTH

zona glomerulosa

27

Adrenal Cortex: outermost layer

zona glomerulosa

28

Adrenal Cortex: secretes aldosterone

zona glomerulosa

29

Adrenal Cortex: largest area

zona fasciculata

30

Adrenal Cortex: pale staining cells in cords with foamy appearances due to lipid droplet accumulations (spongicytes)

zona fasciculata