Western-Endocrine System Flashcards Preview

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Flashcards in Western-Endocrine System Deck (25):
1

Anterior Pituitary-Growth Hormone
(GH)

Growth of body cells:
Hypo = dwarfism
Hyper = gigantism/acromegaly

2

Anterior Pituitary-Prolactin
(PRL)

Initiates & maintains milk secretion of mammary glands.

3

Anterior Pituitary-Adrenocorticotropic
(ACTH)

Stimulates adrenal cortex to secrete hormones.

4

Anterior Pituitary-Thyroid Stimulating
(TSH)

Controls secretion of hormones by the thyroid. Most sensitive test for Hypothyroidism.

5

Anterior Pituitary-Melanocyte Stimulating
(MSH)

Stimulates dispersion of melanin for skin color.

6

Anterior Pituitary-Folical Stimulating
(FSH)

Women: initiate development of ova, induce secretion of estrogen by ovaries
Men: stimulates the testes to produce sperm.

7

Anterior Pituitary-Leutinizing Hormone
(LH)

Women: w/ estrogen, triggers ovulation & formation of corpus leutium (progesterone).
Men: stimulates interstitial cells in testes to produce testosterone.

8

Posterior Pituitary-Oxytocin
(OT)

Stimulates uterine contraction during labor, aids mammary in milk ejection.

9

Posterior Pituitary-Antidiuretic Hormone
(ADH)

Decreases urine volume (increases water retention), raises BP by constricting vessels.

10

Hypothalamus-Releasing & Inhibiting Hormones

Stimulates or inhibits secretion of specific hormones. Works w/ emotions.

11

Thyroid-Thyroid Hormones
(Triiodothyronine T3, Thyroxine T4)

Regulates metabolism, growth & development, activity of nervous system

12

Thyroid-Calcitonin

Lower blood levels of calcium. Increases calcium storage in bones.

13

Parathyroid-Parathyroid Hormone
(PTH)

Increases blood levels of calcium. Removes calcium from storage from bones.

14

Pancreas (Islets of Langerhans)-Glucagon

Raises blood glucose-conversion of glycogen into glucose (A cells).

15

Pancreas (Islets of Langerhans)-Insulin

Lowers blood glucose-transport into cells, convert glucose to glycogen (B cells). Controls carbohydrate metabolism.

16

Pancreas (Islets of Langerhans)-GH Inhibiting Factor

Inhibits secretion of insulin and glucagon.

17

Adrenal cortex-Aldosterone

Increases sodium reabsorption & potassium loss.

18

Adrenal cortex-Cortisol

Increases blood glucose levels & participates in carbohydrate metabolism.

19

Adrenal cortex-Androgens & Estrogens

Secreted in minute amounts.

20

Adrenal Medulla-Epinephrine/Norepinephrine

Increases HT, blood pressure & blood glucose levels. Great to counteract stress.

21

Testes-Testosterone

Regulates male sex hormones, increases rate of cellular metabolism & production of RBCs.

22

Ovaries-Estrogen

Produces the female sex cells & sex hormones. Stimulates the enlargement of accessory organs, external structures & develop/maintain of female secondary sexual characteristics, menstrual cycle.

23

Ovaries-Progesterone

Helps the uterus to prepare for pregnancy. Stimulates the development of mammary glands, menstrual cycle.

24

Pineal Gland-Melatonin

A substance formed by the pineal gland that seems to depress gonadal fxn which inhibits reproductive fxn involved in circadian rhythms.

25

Thymus-Thymosin

A group of peptides secreted by the thymus gland that increases production of certain types of WBCs.

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