General characteristics of hormones, mechanisms of hormonal action

11 terms by silvanajaffe 

Create a new folder

Advertisement Upgrade to remove ads

hormone

secreted by endocrine cells, chemical signal, circulates in bodily fluids, regulates behavior of other cells.

target cells

have a receptor that binds the specific hormone

endocrine/circulating hormone

enters blood vessels, circulated across entire body

local hormones

limited distribution, stay in interstitial fluids or very localized blood vessels. Paracrine and autocrine.

paracrine

endocrine and target cells are near each other

autocrine

endocrine cells has receptors for its own hormone self regulatory

mechanisms of hormonal action

effect of hormone on target cell

open/close ion channel

changes membrane potential (relaxation or contraction of muscle)

change behavior of enzymes inside target cell

changes cell metabolism, changes secretion

change genetic expression of target cell

express or supress specific genes

endocrine glands

secrete hormones into the interstitial fluid surrounding the secretory cells rather than into ducts.

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording

Create Set