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Histo > Endo > Flashcards

Endo Flashcards

1
Q

Characteristics of endocrine organs

A

Made up of organs characterized by presence of groups of cells witg

Vascularized stim
And abundant capillaries

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2
Q

Types of chromophils in the anterior lobe of pituitary gland/pars distalis

A

Acidophils

Basophils

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3
Q

What do orangophils/somatotropes secrete

A

GH

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4
Q

What do carminophils and mamotropes secrete?

A

Prolactin

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5
Q

What are types of basophils

A

Thyrotropes -TSH

Gonadotrophs -LH

corticotrophs - ACTH

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6
Q

Intermediate Lobe / Pars Intermedia special structure

A

Colloid

Produces MSH

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7
Q

Pineal gland

A

Melatonin

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8
Q

Function of melatonin

A

For sleeping helps in maintaining circadian rhythm

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9
Q

Cells in pars nervosa in the pituitary gland

A

Supporting cells resembling neuroglial cells

Superoptic and paraventricular nuclei of the hypothalamus

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10
Q

Special feature in pars nervosa

A

(+) Herring Bodies = accumulation of neurosecretory material in nerve terminals

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11
Q

Also known as neurosecretory corpuscles

A

Herring bodies

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12
Q

Epithelium of epithelial cells

A

Simple cuboidal

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13
Q

Other name for parafollicular cells

A

Calcitonin

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14
Q

Function of calcitonin

A

Lower Ca levels and bone resorption

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15
Q

2 types of cells in the parathyroid gland

A

1 Chief or Principal

2 Oxyphils or Principal

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16
Q

Difference between chief and oxyphils

A

C- smaller NUMEROUS —> PARATHORMONE

OXYPHILS - fewer, no hormonal secretion, occurs singly or in twos

17
Q

Hormonal problem in Cushing’s

A

ACTH

18
Q

Hormonal problems in DI

A

Neurohypophysis: Vasopressin

19
Q

Hormones secreted by POSTERIOR PITUITARY

A

Vasopressin and Oxytocin

20
Q

3 zones in the adrenal cortex

A

Glomerulosa - Mineralo
Fasciculata - Gluco
Reticularis - Sex steroid hormones

21
Q

Present in zona fasciculata

A

Fatty cells (Spongiocytes)

22
Q

Numerous
Found centrally
Secrete hormone that lowers blood sugar

A

Beta cells

23
Q

Found at periphery

Secrete hormone glucagon

A

Alpha cells

24
Q

Progenitor of alpha cells

A

Non granular - c cells

25
Q

Cells that produce hormone that regulates sleep cycle

A

Pinealocytes

Histo (7 decks)

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