Endocrine System
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9 Terms
Endocrine System
made up of structures called glands that make and release chemicals directly Into the blood
chemicals are called hormones
regulate MANY functions like growth and hunger
Hormones
Enable communication between the nervous system, the endocrine system and all the other body systems
glands release a hormone that is carried in the bloodstream to all the cells in the body
Hormones act On target cells
Target cells
Respond accordingly
What do hormones control
Hormones control feedback mechanisms to maintain homeostasis
2 types of feedback
Positive and negative
positive feedback
The response of a system increases the activity of the system
negative Feedback Loop
When the response of a system turns of the system
Non biological EX
temperature drops in house >Furnace turns on>tempature rise Is back>furnace turns off
Biological EX
Body temp rises >Start sweating >sweat evaporates >body cools down> stop sweating