379 - Disorders of the Adrenal Cortex Flashcards

1
Q

The adrenal cortex synthesize ___ from ___ with ___

A

Steroids
Cholesterol
ACTH

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2
Q

Glucocorticoids (___) and mineralocorticoids (___) act through specific basilar receptors, while precursors for ___ are synthesize in the ___ gland, and from there reach the gonads and are activated through receptors for ___ and ____

A
Cortisone
Aldosterone
Androgens
Adrenal
Androgens
Estrogens
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3
Q

The blood supply for the adrenal gland is from the outside inwards:___ -> ___ -> ___ -> ____. The drainage is to the ____ and ___ (respectively).

A
Glomerulosa
Fasciculata
Reticulosis
Medulla
IVC
Left renal vein
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4
Q

The origin of the adrenal gland is the ___, separately from the gonads and kidneys on the ___ week of gestation.

A

Urogenital ridge

6th

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5
Q

What is the main glucocorticoid hormone?

A

Cortisol

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6
Q

What are the main functions of glucocorticoids? (2)

A

Metabolism regulation
and
Immune response

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7
Q

What does HPA stands for?

A

Hypothalamic–pituitary–adrenal axis

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8
Q

CRH (___) is released from the ___ under stress, leading the ___ secretion which turns into ___ in the hypophysis. It is released to the blood and when reaching the adrenal gland it leads to the secretion of ___

A
Corticotropin-releasing hormone
Hypothalamus
POMC (Pro-opiomelanocortin)
ACTH
Cortisol
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9
Q

There is a shift from inactive ____ to its active form ___ by different isoforms of the ___ enzyme. When mutated we can see ___ signs.

A

Cortisone
Cortisol
HSD11
Cushing

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10
Q

HDS11 type _ works in ___

A

1
Peripheral cells
Cortisone
Cortisol

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11
Q

HDS11 type _ turns ___ to ____

A

2
Cortisol
Cortisone

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12
Q

Cortisol is secreted at peak levels during the ___ and low levels during the ___

A

Morning

Evening

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13
Q

Cortisol has the opposite function of ____, increasing the production of ___

A

Insulin

Glucose

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14
Q

Cortisol deficiency during ___ can lead to ___, ___, and even ___.

A

Stress
Hypotension
Shock
Death

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15
Q

Mineralocorticoids are in charge of ____.

A

BP and electrolytes balance

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16
Q

Aldosterone levels increase in response to increased consumption of ___, ___ or when ___.

A

Potassium
Calcium
Standing

17
Q

What part of the adrenal gland synthesis mineralocorticoids?

A

Glomerulosa

18
Q

Aldosterone is released once ___ reach the AT1 receptors in response to ___

A

Angiotensin II

Hypotension

19
Q

What are the 2 main androgens?

A

DHEAS

DHEA

20
Q

What are the roles of androgens?

A
  1. Secondary male sexual signs (most of the effect comes from testosterone from the testis)
  2. Female virilizations signs
21
Q

ACTH is synthesized by __ in the brain, ___ and ___ with ____ from the hypothalamus. It can increase in response to serotonin and acetylcholine

A

POMC
hypophysis
Lymphocytes
CRH

22
Q

Renin is produced in the ___ (AT1->AT2) by ACE. It is a potent __ of the arteriole, that leads to ___ synthesis in the adrenal cortex (___)

A

Afferent arteriole
Vasoconstrictor
Aldosterone
Glomerulosa