Unit 1 - Biological Bases of Behavior - the endocrine system

endocrine system

-a network of glands that release hormones

-works alongside the nervous system to regulate bodily functions

-hormones are chemical messengers that travel through the bloodstream

hormones

-chemical messengers in the bloodstream

-slower, longer-lasting effects

neurotransmitters

-chemical messengers between neurons

-fast, short-lived effects

hormones ex

-adrenaline

-ghrelin

-leptin

-melatonin

-oxytocin

adrenaline

-produced by the adrenal glands

-released during stressful and exciting situations

-prepares the body for "fight or flight"

- increases heart rate, respiration, and blood flow tyo muscles

-mobilize energy by increasing glucose availibility

the hunger hormones ex

-ghrelin

-leptin

ghrelin

-produced by the stomach

-signals hunger

-increases appetite

-works alongside leptin

leptin

-produced by fat cells (adipose tissue)

-signals fullness

- decreases appetite

-works alongside ghrelin

melatonin

-produced by the pineal gland

-primary role: regulates sleep-mode cycles (circadian rhythm)

-exposure to darkness, increase production

-light exposure, decreased production

oxytocin

-produced by the hypothalamus (released by the pituitary gland)

-primary roles: bonding, trust, social connection, childbirth, and lactation