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Anatomy > Endo: Pituitary Gland > Flashcards

Endo: Pituitary Gland Flashcards

0
Q

Other name for pituitary gland

A

Hypophysis cerebri

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1
Q

Master of endocrine gland

A

Pituitary gland

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2
Q

Size of the Pituitary gland

A

13x8mm

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3
Q

Weight of the Pituitary gland

A

0.5 grams

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4
Q

Pituitary gland is covered by the

A

Dura mater

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5
Q

Pituitary gland is protected by the

A

Sphenoid bone

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6
Q

Two parts of the pituitary gland

A

Adenohypophysis & Neurohypophysis

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7
Q

The adenohypophysis is from what portion

A

Buccal/Glandular portion

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8
Q

Adenohypophysis is derived from an upgrowth (________) from the roof of the primitive pharynx (_________).

A

Rathke’s pouch & Stomodeum

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9
Q

In adenohypophysis, _______ connecting to the lobe and roof of the _______ disappears. But may persists as _________.

A

Stalk. Mouth. Craniopharyngeal canal

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10
Q

Other name for anterior pituitary gland

A

Adenohypophysis

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11
Q

Derived from the brain

A

Neurohypophysis

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12
Q

Neurohypophysis is from what origin

A

Nervous

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13
Q

Neurohypophysis is from the floor of the ______ and forms the ______.

A

3rd ventricle. Infundibulum.

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14
Q

Other name for posterior pituitary gland

A

Neurohypophysis

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15
Q

Constitute 80% of the gland

A

Adenohypophysis

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16
Q

Largest subdivision of the anterior pituitary gland

A

Pars distalis/anterior

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17
Q

Cells found in pars distalis

A

Basophils (beta cells), Acidophils (alpha cells), Delta basophils & Chromophobes “BADC”

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18
Q

Cells that are acidophils in nature

A

Somatotropes & Lactotropes/Mammotropes

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19
Q

Cells that are basophils in nature

A

Thyrotropes & Corticotropes

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20
Q

Cells that are delta basophils in nature

A

Gonadotropes

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21
Q

Hormone secreted by somatotropes

A

Somatotropin

22
Q

Hormone secreted by Lactotropes/Mammotropes

A

Prolactin/Luteotrophic H/Lactogenic H

23
Q

Hormone secreted by Thyrotropes

A

TSH

24
Q

Hormones secreted by Corticotropes

A

POMC, ACTH, Lipotropins & Endorphins “PALE”

25
Q

Hormones secreted by Gonadotropes

A

LH, ICSH & FSH

26
Q

Contains small masses of colloid material, and some finely granulated cells

A

Pars intermedia

27
Q

Hormone secreted by pars intermedia

A

MSH

28
Q

Pars intermedia is a relatively ________ zone

A

Avascular

29
Q

Projection from pars anterior. Most vascular part of the gland.

A

Pars tuberalis

30
Q

Hormone secreted by pars tuberalis

A

None

31
Q

Posterior lobe. No nerve cells.

A

Neurohypophysis

32
Q

Neurohypophysis has numerous __________, _______ and small collection of _________ materials.

A

Neuroglial cells, Fibers & Colloid

33
Q

In neurohypophysis, cell bodies are located in the

A

Hypothalamus

34
Q

Hormones secreted by the neurohypophysis

A

Vasopressin & Oxytocin

35
Q

Other name for ADH

A

Pitresin

36
Q

Other name for Oxytocin

A

Pitocin

37
Q

Vasopressin is secreted by the

A

Supraoptic nuclei

38
Q

Oxytocin is secreted by the

A

Paraventricular nuclei

39
Q

Other name for neurohypophysis

A

Pars nervosa

40
Q

Blood supply of the Pituitary gland is from what branch

A

Internal Carotid Artery

41
Q

Supplies the infundibulum. Forms the capillary that forms _________________.

A

Superior Hypophyseal Artery. Hypothalamic Hypophyseal Portal System.

42
Q

Supplies the posterior lobe of the pituitary gland

A

Inferior Hypophyseal Artery

43
Q

Venous drainage of the Pituitary Gland

A

Cavernous sinus & Intercavernous sinus

44
Q

Surgical approaches for the Pituitary gland

A

Intracranial approach & Endoscopic Transsphenoidal approach

45
Q

Hormones secreted by the Hypothalamus

A

GHRH, GHIH, GnRH, PIH, TRH & CRH “GGGPTC”

46
Q

Pineconed-shape organ. Calcify during adult age.

A

Pineal gland

47
Q

Other name for pineal gland

A

Epiphysis

48
Q

Pineal gland is derived from the

A

Roof of diencephalon

49
Q

Weight of the pineal gland

A

100-180gms

50
Q

Pineal gland is located

A

Between the superior colliculi

51
Q

Pineal gland is composed mainly of what cells

A

Pinealocyte & Chief cells

52
Q

Pinealocyte produces what hormone.

A

Melatonin.

53
Q

What is the effect of melatonin

A

Antigonadotrophic

Anatomy (14 decks)

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