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T1 - Histology Midterm 3 > Histo. Endocrine System > Flashcards

Histo. Endocrine System Flashcards

1
Q

______ tissue is a group of cells forming part of some organ

A

unorganized endocrine tisse

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2
Q

name 5 unorganized endocrine tissues

A 
Islet of Langerhans
Interstitial cells of testis 
corpus luteum of ovary
endocrine cells of G.I.T
Endocrine cells of planceta

I.I.C.E.E

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3
Q

Name 5 organized endocrine tiss

A 
pituitary
parathyroid 
pineal body 
suprarenal 
thyroid
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4
Q

The thyroid gland has two lobes connected by _____

A

isthmus

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5
Q

Thyroid follicules are filled with collid which ___(fxn)_____

A

store thyroid secretion

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6
Q

Follicular (principle cells) have _______epithelium

A

simple cuboidal

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7
Q

Follicular cells of the thryroid secrete _______

A

Thyroxin

Tri-iodothyronin

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8
Q

Thyroxin is secreted by ________ cells of the thyroid

A

follicular cells

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9
Q

Tri-iodothyronin is secreted by ____ cells of the thyroid

A

follicular cells

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10
Q

_______ & ____ activates the metabolic processes and increase the metabolic rate

A

thyroxin & tri-iodothyronin

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11
Q

Parafollicular cells of the thyroid secrete ___

A

thyrocalcitonin (calcitonin)

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12
Q

________ horm suppresses bone resorption and lowers calcium levels of the blood

A

calcitonin (thyrocalcitonin )

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13
Q

2 cells types in the parathyroid

A
  1. principle (chief) : Dark & light cheif cells

2. Oxyphil

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14
Q

______ cells of the parathyroid secrete parathormone

A

Dark Chief

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15
Q

Parathorome are secreted by _____

A

dark chief cells of the parathyroid

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16
Q

______ hormone promote bone resorption and liberation of calcium from bones , elevate the calcium levels of blood

A

parathormone

secreted by dark cheif cells

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17
Q

_____ are inactive forms of the dark chief cells

A

light chief cells

parathyroid

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18
Q

_______ cells are degenerative forms of chief cells. Increase with age

A

oxyphil

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19
Q

hypothyroidism leads to a c.c. known as ___ in adults

A

myxedema

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20
Q

hypothyroidism leads to a c.c. in children called __

A

cretinism

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21
Q

Outer zone of the suprarenal

A

cortex

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22
Q

Inner portion of the suprarenal

A

medulla

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23
Q

The medulla of the suprarenal secretes_____

A

epinephrine and norephrine

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24
Q

_______ secrete mineralocorticoids

A

zona glomerulosa

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25
Q

Aldosterone is a _____

A

mineralocorticoid

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26
Q

Fxn of aldosterone

A

control water and electrolyte balance

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27
Q

Zona fasiculata has ___ cells within its zone

A

spongiocytes

28
Q

zona fasciculata secretes ______

A

glucocorticoid (cortisol)

29
Q

Cortisol is a ______

A

glucocorticoid (zona fasciculata)

30
Q

Glucocorticoids (cortisol) fxn

A

control carb and protein metabolism

31
Q

Zona reticularis secretes____

A

gonadocorticoid

32
Q

gonadocorticoids secrete____

A

sex hormones

33
Q

The pituitary gland occupies a depression called ________

A

hypophyseal fossa

34
Q

The large anterior portion of the pituitary gland

A

andeohypophysis

35
Q

The small posterior part of the pituitary

A

neurohypophysis

connected to the brain

36
Q

3 divisions of the andenohyphysis

A
  1. pars distalis
  2. pars tuberalis
  3. Pars intermedia
37
Q

3 divisions of the neuropophysis

A
  1. Pars posterior
  2. infundibular stalk
  3. median eminence
38
Q

____ horm stim growth of body tis

A

Growth horm (somatotrophic hormone STH)

pituitary

39
Q

____ stim the secretion of milk

A

prolactin

pituitary

40
Q

___ stim the thyroid secretions

A

follicle stim horm (FSH)

pituitary

41
Q

____ hormone activated ovulation and the development of the corpus luteum in women

A 
Luteinizing horm (LH)
(pituitary)
42
Q

____ hormon stim the secretion of testosterone

A

Luteinizing horm (ICSH)

43
Q

__ hormone stim the formation of spermatozoa

A

follice stim horm (FSH)

pituitary)

44
Q

_____ horm stim the secretion of cortical horm of the suprarenal gland

A 
Adrenocorticotrophic horm (ACTH)
(pituitary)
45
Q

______ horm is secreted in the pars intermedia of the pituitary gland

A

melanocyte stimulating horm (MSH)

46
Q

_____ nuclei of the hypothalmus ending in the neurophypophyis

A

hypothalmis hypophyseal tract

47
Q

hypothalmis hypophyseal tract arises from _____ & ___

A

supraoptic & paraventricular nuclei

48
Q

______ are dilated bulbous endings of the fibers of the hypothalmic hyophyseal tract

A

herrings body

49
Q

_____ are neuroglia that support the nervous elements of the nuerohypophysis

A

pituicytes

50
Q

____ horm stim smooth m. of the uterus and mammory gland ejection

A

oxytocin

neurohypo- pituitary

51
Q

2 hormons secreted by the neurohypophysis

A
  1. oxytocin

2. vasopressin

52
Q

_____ horm reduces urine production by increasing reabsorption of the fluid in the kidneys

A

vasopressin (antidiuretic horm ADH)

- neurohypo- pituitary)

53
Q

___ hormone causes vasoconstrition

A

vasopressin

54
Q

___ hormone causes elevation of BP (pituitary)

A

vasopressin

neurohypo

55
Q

deficiency of _____ horm causes diabetic insipidus

A

vasopressin

56
Q

deficiency of vasopressin causes _____

A

diabetes insipidus

57
Q

_____ gland is covered by pia mater

A

pineal body

58
Q

_____ gland is known as the biological clock

A

pineal body

59
Q

the pineal body secretes __

60
Q

melatonin is made from the neurotransmitter ____

61
Q

____ is the sleep hormone

62
Q

**_____ horm mobilizes calcium from bone matrix in response to ow levels of ca+ in the blood

A

parathyroid

63
Q

**C.C. _____ condition results from thyroxin defficiency in the adults and cirtinism in infants

64
Q

** __ cells of the pituitary gland secrete prolactin

65
Q

** ____ is secreted by parafolliculare cells of the thyroid gland

A

calcitonin

T1 - Histology Midterm 3 (5 decks)

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