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Histology > Endocrine > Flashcards

Endocrine Flashcards

1
Q

Growth hormone

A

Secreted by somatotroph cells

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2
Q

ACTH

A

Adreno-corticotropic hormone

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3
Q

LH

A

Leutinising hormone

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4
Q

FSH

A

Follicle stimulating hormone

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5
Q

MSH

A

Melanocyte stimulating hormone

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6
Q

Secretory granules

A

Contain hormones, membrane bound

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7
Q

Somatotroph

A

Cells in anterior pituitary secreting somatotropin, with dense abundant secretory granules

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8
Q

Gonadotroph

A

Cells in anterior pituitary releasing gonadotropins, with distinct smaller secretory granules

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9
Q

Lactotroph

A

Release prolactin

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10
Q

Thyrotroph

A

Release TSH

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11
Q

Pituicyte

A

Supporting glial cells surrounding unmyelinated axon

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12
Q

Neurosecretion

A

Secretion of ADH and oxytocin

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13
Q

Thyroid colloid

A

Material containing thyroglobulin surrounded by follicles

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14
Q

Thyroglobulin

A

Inactive storage protein processed to make T4

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15
Q

T4- thyroxine and T3- triiodothyronine

A

Iodine containing hormones regulating basal metabolic rate, normal growth and maturation, lipid and carb metabolism
T4 converted to more potent T3 at target tissue

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16
Q

Calcitonin

A

Role in Ca regulation, secreted by parafollicular/ clear/ C cells

17
Q

Chief/ principal cells

A

Secrete Parathyroid hormone (PTH) in parathyroid glands

Large round nucleus, pale cytoplasm

18
Q

Oxyphil cells

A

Parathyroid cells with unknown function

19
Q

Follicle

A

Synthesise thyroid hormones formed by single layer of cuboidal epithelium cells surrounding thyroid colloid

20
Q

Zona glomerulosa

A

Outer zone of adrenal cortex, 5-10% mass of cortex

Secretes mineralocorticoids

21
Q

Zona fasciculata

A

Intermediate zone of adrenal cortex, 75% of cortex

Many mitochondria and secrete glucocorticoids

22
Q

Zona reticularis

A

Inner zone of adrenal cortex, 5-10% of cortex, secretes androgenic steroids

23
Q

Aldosterone

A

Acts on kidney increasing sodium re absorption

Mineralocorticoid

24
Q

Cortisol

A

Glucocorticoid

Stress hormone

25
Q

Catecholamine

A

Secreted by adrenal medulla, includes adrenaline, noradrenaline and dopamine

26
Q

Chromaffin cells

A

Cells in adrenal medulla, react with chromate salts

Histology (8 decks)

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