Endocrine System Part 1 Flashcards
How does the endocrine communicate and control
Hormones secreted into and circulated by the blood
Where are the organs of the endocrine system located?
Neck, cranial, thoracic, abdominal, and pelvic cavities
There are two types of glands in the body. Which type belongs to the endocrine system,
Endocrine glands
Target cell
Cell that hormone binds to because it has a specific receptor for that type of cell
Hyper secretion
Production of too much hormone by disease of a gland
Hypo secretion
Too little of a hormone is produced by a gland
No steroid hormones work according to
Second messenger mechanisms
Nonsteroid hormones serve as…
First messengers
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
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
Which triggers a dasher response, steroid or nonsteroid hormones?
Nonsteroid
The regulation of hormone levels in the blood depends on a highly specialized homeostatic mechanism called…
Negative feedback
Positive feedback systems result in…
Amplified changes
What is a prostaglandin?
Tissue hormone
What is the abbreviation for prostaglandins?
PGs
