Endo Flashcards

(40 cards)

1
Q

Posterior pituitary

A

ADH (vasopressin)and oxytocin produced in hypothalamus and stored in posterior pituiritary

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2
Q

ADH action

A

Decrease urine output by increaseing water reabsorption at collecting ducts
Vascular constriction-increased vascular resistance and increase BP

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3
Q

Oxytocin

A

Uterine contraction MILK EJECTION not production from sucking not milk production

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4
Q

Anterior pituitary

A

Store and release hormones and produce hormones

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5
Q

FSH

A

Pulsation GnRH stimulate

Women-grow mature follicles

Men-sertoli cell to mature sperm

Inhibit by inhibit

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6
Q

LH

A

Stim by pulsation release of GnRH from hypothalamus

Women-theca lutein cells for estrogen and progesterone production stimulate ovulation and maintain CL

Men-testosterone production, get negative feedback

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7
Q

ACTCH

A

CRH stimulate

Act on adrenal cortex to make cortisol

Inhibited by cortisol

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8
Q

TSH

A

Stim by TRH

Act on thyroid gland to make a Reduce thyroid hormone
Inhibit by somatostatin and T3 and T4

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9
Q

GH

A

Stim by GHRH

Promote growth cell reproduction and generation

Inhibit by somatostatin

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10
Q

Prolactin

A

TRH stimulate

Breast development

Inhibit ovulation

Stimulate milk production and secretion

Only pituitary hormone promptly controlled by its inhibitor WHIHC IS DOPAMINE

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11
Q

Cortex outer

A

Mesoderm

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12
Q

Medulla

A

NCC(ectoderm)
Make
Chromatin cells

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13
Q

Adrenal cortex layers

A

Glomerulosa
Fasciculata
Reticularis

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14
Q

Glomerulosa

A

SALT
Mineralocortocoid aldosterone

Na retention

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15
Q

Fasciculata

A

Sugar

Cortisol-glucocorticoid regulate glucose metabolism

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16
Q

Reticularis

A

Sex

Androgens

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17
Q

Steroid hormone

A

Diffuse through plasma membrane

Bind intracellular receptors
—DNA binding transcription factors

18
Q

Chromatin

A

Produce catecholamines (E (Adrenalin)and NE

19
Q

Adrenal medulla most common tumor NOT MEDULLA

A

Pheochromocytoma

20
Q

Most common adrenal tumor

A

In medulla and adenoma, but if in cortex most common is pheochromocytoma)

21
Q

Pheochromocytoma

A

Most common tumor of the adrenal medulla in adults

Chromaffin cell tumor that produces catecholamines

Episodes of HA, sweat, HTN, tachycardia

22
Q

Medulla kid most common tumor

A

Adrenal neuroblastoma-DONT GET episodes of HTN that you see in adults, causes sustained HTN

23
Q

Fetal adrenal gland

A

Important for lung maturation

Need cortisol for type II pneumocytes

24
Q

Congenital adrenal hyperplasia

A

AR

21 a hydroxylase defiency
Or
11b hydroxylase

Too much androgens less others

25
21 a hydroxylase
Can’t make aldosterone or cortisol Too much progesterone and 17 OH progesterone so go to androstenedione and testosterone Pituitary make more ACTH to stimulate the adrenal garland, but will exacerbate the problem Salt wasting hypotension from lack of aldosterone
26
11B hydrozylase defiency
Can’t make aldosterone or cortisol ACTH up See DOC, deoxycorticosterone, so don’t get hypotension, HAVE HTN from sodium retention
27
Why called congenital adrenal hyperplasia
Too little cortisol overall, pituitary try to stimulate by secreting ACTH whihc stimulates growth of the adrenal cortex Hyperplasia or growth of adrenal gland
28
Diabetes drugs
Biguanide-metformin Sulfonylurea-glimepiride, glipizide, glyburide Thiazolidinediones GLP-1 agonists-exenatide, liraglutide, ambiguities, dulaglutide DPP-4 inhibitors-sitagliptin, alogliptin, saxagliptin, linagliptin SGLT-2 inhibitors-dapagliflozin, empagliflozin, canagliflozin
29
Metformin MOA
Biguanide Decrease gluconeogenesis int he liver Improves insulin sensitivity
30
Side effects metformin
GI upset, lactic acidosis
31
Sulfonylureas MOA
Increase insulin
32
Side effect sulfonylureas
Hypoglycemia, weight gain
33
Thiazolinideniones MOA
Increase sensitivity to insulin Decrease gluconeogenesis I Bind PPAR gamma receptors in adipose, liver, skeletal (regulat FA storage and glucose metabolism, to improve insulin sensitivity in peripheral tissue)
34
Side effect thiazolidendiones
Fluid retention Weight gain
35
MOA GLP-1 agonists
Increase glucose dependent insulin release Decrease glucagon release Promote delayed gastric emptying
36
Side effects GLP-1 agonist
Nausea Injection
37
DPP-4 inhibitors
Increase glucose dependent insulin release Less potent in GLP1 but use in older
38
Side effect DPP4 inhibitos
Low side effects use old
39
SGLT-2 inhibitor
Sodium glucose 2 inhibitors More glucose lost in urine, less blood glucose Lose weight Rely on normal kidney function to work
40
Side effects SGLT-2 inhibitos
Recurrent UTI from mycotic infections with SGLT-2 inhibitors bc of increased glucose in urine Dehydration Diabetic ketoacidosis