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Flashcards in Intro to Endocrine Deck (14):
1

What is a hormone?

A chemical substance released in small quantities from certain glands that travel through teh circulatory system to elicit a specific response in other cells.
Includes Neurohormones.
DOES NOT include intracellular messengers like cyclic AMP, local mediators like Nitric Oxide, CO2

2

What are some examples of Neuroendocrine

Posterior Pituitary, Adrenal Medulla, Hypothalmic releasing hormones.

3

Three general categories of hormones?

-Steroids and Steroid like hormones
-Amino Acid Derivatives
-Peptide and Proteins

4

Steroids and steroid like hormones are derived from what?

Cholesterol

5

Amino Acid Derivatives are derived from

Specifically Tyrosine

6

Endocrine gland locations

know them

7

Two methods of hormone action

Direct or Indirect or Permissive

8

What is permissive action

A hormone that allows another hormone to work better. Example: Thyroid hormone allowing epinephrine to mobilize large amounts of fatty acids by causing an increased number of epinephrine receptors

9

What type of hormones use intracellular receptors?

Steroids and Thyroid Hormone

10

What is the function of second messengers

1) Amplify hormone signaling
2) Disperse Hormone signaling

11

What are the three categories of hormones measurements

Free, Bound, Total (free + bound)

12

What's the active form of a hormone

Free, that't the type that can get across the capillary

13

What are some types of hormones that use intracellular receptors?

Steroids and Thyroid hormone

14

What are some types of hormones that use surface receptors

dont know