Advertisement Upgrade to remove ads

summarize the major interactions of the nervous, endocrine, and immune systems in the stress response. flow chart pg 63 workbook

CRF

corticotropin releasing factor (or hormone), it is an initiator of biologic brain responses to stress...released in hypothalamus, and peripherally at inflammatory sites. it causes vasodilation and increased vascular permeability. Its primary target is the mast cell

interactions of the nervous, endocrine, and immune systems in the stress response

stressor signals the hypothalamus to release CRF...activates the HPA axis and the autonomic nervous system. the production of CRF is initiated by a high level of IL-1

stress induced catecholamine

release from the adrenal medulla and results in peripheral vasoconstriction

stress induced stimulation of the adrenal cortex

causes the adrenal cortex to release cortisol

corticoids

biochemicals that are secreted by the adrenal cortex in response to stress

IL-1

the cytokine produced by macrophages stimulating the release of CRF

IL-2

an interleukin that increases ACTH levels

catecholamine

are sympathomimetic "fight-or-flight" hormones that are released by the adrenal glands in response to stress. They are part of the sympathetic nervous system.

NPY

a neurotransmitter augmenting the action of catecholamine

IFN

a substance produced by lymphocytes, macrophages, and fibroblasts and enhances phagocytic activity.

Endorphin

inhibit pain, CRF secretion and blood pressure increases.

epinephrine

increases heart rate and contractility. increased venous return to the heart and increased cardiac output and blood pressure. epinephrine dilates blood vessels of the muscles and cause transient hyperglycemia

Norepinephrine

released from the adrenal medulla. it increases mental alertness and shifts blood from the viscera and skin to the dilated vessels (from epinephrine). the steroid hormones are stimulated by the hypothalamus, which sets off a chain of events in which steroid hormones are secreted from the adrenal cortex. (cortisol is one of the main steroid hormones.)

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