Endo: Pituitary Gland Flashcards

(54 cards)

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

22
Q

Hormone secreted by Lactotropes/Mammotropes

A

Prolactin/Luteotrophic H/Lactogenic H

23
Q

Hormone secreted by Thyrotropes

24
Hormones secreted by Corticotropes
POMC, ACTH, Lipotropins & Endorphins "PALE"
25
Hormones secreted by Gonadotropes
LH, ICSH & FSH
26
Contains small masses of colloid material, and some finely granulated cells
Pars intermedia
27
Hormone secreted by pars intermedia
MSH
28
Pars intermedia is a relatively ________ zone
Avascular
29
Projection from pars anterior. Most vascular part of the gland.
Pars tuberalis
30
Hormone secreted by pars tuberalis
None
31
Posterior lobe. No nerve cells.
Neurohypophysis
32
Neurohypophysis has numerous __________, _______ and small collection of _________ materials.
Neuroglial cells, Fibers & Colloid
33
In neurohypophysis, cell bodies are located in the
Hypothalamus
34
Hormones secreted by the neurohypophysis
Vasopressin & Oxytocin
35
Other name for ADH
Pitresin
36
Other name for Oxytocin
Pitocin
37
Vasopressin is secreted by the
Supraoptic nuclei
38
Oxytocin is secreted by the
Paraventricular nuclei
39
Other name for neurohypophysis
Pars nervosa
40
Blood supply of the Pituitary gland is from what branch
Internal Carotid Artery
41
Supplies the infundibulum. Forms the capillary that forms _________________.
Superior Hypophyseal Artery. Hypothalamic Hypophyseal Portal System.
42
Supplies the posterior lobe of the pituitary gland
Inferior Hypophyseal Artery
43
Venous drainage of the Pituitary Gland
Cavernous sinus & Intercavernous sinus
44
Surgical approaches for the Pituitary gland
Intracranial approach & Endoscopic Transsphenoidal approach
45
Hormones secreted by the Hypothalamus
GHRH, GHIH, GnRH, PIH, TRH & CRH "GGGPTC"
46
Pineconed-shape organ. Calcify during adult age.
Pineal gland
47
Other name for pineal gland
Epiphysis
48
Pineal gland is derived from the
Roof of diencephalon
49
Weight of the pineal gland
100-180gms
50
Pineal gland is located
Between the superior colliculi
51
Pineal gland is composed mainly of what cells
Pinealocyte & Chief cells
52
Pinealocyte produces what hormone.
Melatonin.
53
What is the effect of melatonin
Antigonadotrophic