Endocrine System Part 1 Flashcards Preview

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Flashcards in Endocrine System Part 1 Deck (20):
1

How does the endocrine communicate and control

Hormones secreted into and circulated by the blood

2

Where are the organs of the endocrine system located?

Neck, cranial, thoracic, abdominal, and pelvic cavities

3

There are two types of glands in the body. Which type belongs to the endocrine system,

Endocrine glands

4

Target cell

Cell that hormone binds to because it has a specific receptor for that type of cell

5

Hyper secretion

Production of too much hormone by disease of a gland

6

Hypo secretion

Too little of a hormone is produced by a gland

7

No steroid hormones work according to

Second messenger mechanisms

8

Nonsteroid hormones serve as...

First messengers

9

Lipid soluble steroid hormones

Do not occur by the second messenger system, and can pass intact directly through the plasma membrane of the target cell

10

Major difference between nonsteroid and steroid hormones

Nonsteroid hormones serve as a first messenger by releasing a second messenger in a cell by binding to a receptor on the outside of the cell. A steroid hormone pass through the plasma membranes and into the nucleus where they bind to a receptor

11

Which triggers a dasher response, steroid or nonsteroid hormones?

Nonsteroid

12

The regulation of hormone levels in the blood depends on a highly specialized homeostatic mechanism called...

Negative feedback

13

Positive feedback systems result in...

Amplified changes

14

What is a prostaglandin?

Tissue hormone

15

What is the abbreviation for prostaglandins?

PGs

16

What are the three classes of prostaglandins?

Prostaglandin A (PHA), Prostaglandin E (PHE), and Prostaglandin F (PGF)

17

What do PGs influence?

Respiration, blood pressure, gastrointestinal secretions, inflammation, and the reproductive system

18

How do researches believe PHs regulate cells?

Influencing production of cAMP

19

What is the difference between prostaglandins and hormones?

They are produced by the tissue and then released into neighboring cells in that tissue whereas hormones influence and control activities of widely spread organs.

20

Function of the endocrine system

Communication and control