Overview/Hormones of the Endocrine System - A&P

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Local Communication

Cells can secrete substances that allow them to communicate with cells that are lose by (i.e. paracrine and autocrine signaling)

Long-Distance Communication

Cells secrete substances that travel a long distance to affect some other tissue/organ in a different part of the body (i.e. endocrine signaling)

Endocrine System Function

Regulate the activities of the body’s cells (with hormones)

Hormones

Chemical substances that are secreted by endocrine cells in one part of the body that affect the metabolic activity of cells in another part of the body

Where are hormones secreted into

The bloodstream and carried throughout the body by blood

Target Cells/Organs

Cells that respond to hormones

Steroid Hormones

Type of hormone that’s made from cholesterol (i.e. testosterone and estrogen)

Amino Acid Hormones

Type of hormone that’s made from amino acid derivatives (i.e. insulin and glucagon)