1 Flashcards

1
Q

3 general classes of hormones

A

Steroid, protein, and amine hormones

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2
Q

synthesized in endocrine cells & released space into EC

A

Paracrine hormone

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3
Q

HPA Axis

A

Stress stimulates hippocampus to release MR and GR. The receptors of GR and MR will send feedback to the hypothalamus to release CRH and AVP. Then this will stimulate CRH and AVP to release ACTH. ACTH will stimulate the adrenal glands to release cortisol which will go to peripheral tissues.

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4
Q

What suppresses Growth hormone and prolactin?

A

Somatostatin and Dopamine

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5
Q

It is a hormone that acts on the maturation of follicles, ovulation, production of estrogen, progesterone, and testosterone.

A

Luteinizing hormone

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6
Q

Acts on spermatogenesis and egg cell production.

A

Follicle stimulating hormone

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7
Q

Production of adrenocortical hormones by adrenal gland.

A

Adrenocorticotropic hormone

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8
Q

It antagonizes the effects of insulin.

A

Growth hormone

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9
Q

It allows the individual to transition from fed state to a fasting state.

A

Growth hormone

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10
Q

It enhances protein synthesis in skeletal muscle and other tissues.

A

Growth hormone

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11
Q

Peak levels of growth hormone.

A

1-4 hours of deep sleep

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12
Q

It enhances growth hormone production.

A

IGF-1

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13
Q

Condition that has hyperglycemia.

A

Acromegaly

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14
Q

Laboratory diagnosis of acromegaly.

A

OGTT

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15
Q

Laboratory diagnosis of dwarfism.

A

Insulin tolerance test

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16
Q

Main stimulus for the uptake of iodide.

A

Thyroid stimulating hormone

17
Q

Symptoms of early hypothyroidism.

A

Increase TSH

18
Q

Important in milk letdown and maintenance of lactation.

19
Q

Hormone in the zona glomerulosa

A

Aldosterone (mineralocorticoids)

20
Q

Hormone in the zona fasciculata.

A

Cortisol (glucocorticoids)

21
Q

Hormone in the zona reticularis.

A

Sex hormones (steroids)

22
Q

The only adrenal hormone that can inhibit the production of ACTH.

23
Q

It is anti inflammatory and immunosuppressive

24
Q

Some symptoms are hyperglycemia, protein wasting and decreased ability to limit infections.

A

Cushing’s syndrome

25
Some symptoms are truncal obesity and stress precipitation of vascular collapse and shock.
Addison’s disease
26
Test for Cushing’s syndrome.
Dexamethasone Suppression
27
Porter-Silber reaction is a test used for the measurement of cortisol which uses this that produces yellow pigment.
Phenylhydrazine in the presence of alcohol and H2SO4
28
Synthesized and stored by chromaffin cells of the adrenal medulla.
Catecholamines
29
Metabolite of dopamine
Homovanillic acid
30
Epinephrine metabolite
Metanephrines and Vanillylmandelic acid
31
Tumor in adrenal medulla.
Pheochromocytoma
32
Malignant tumor of adrenal medulla seen in children.
Neuroblastoma
33
In measuring plasma estradiol using RIA commercial kits, what is used?
Iodine 125 labelled tracer