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Endocrine System 272-2728855_military-disability-of-the-endocrine-system…
Endocrine System
Functions
Release
chemical messages into the blood stream
Hormones
Regulate
metabolism
sexual development and function
body growth
Transfer information to organs and tissues by affecting only specific cells
specific cells called target cells
Hormones bind with proteins on cell membrane or within target cell
Facts
slower and longer lasting than the nervous system.
Is the information signal system
Not using neurons
uses chemical messengers called hormones
The endocrine system can respond to stress
Major glands
Hypothalamus
Receives information from the nervous system
controls pituitary gland
Pituitary gland
releases many hormones
Hormones that control other endocrine glands
Known as "master gland"
Pineal gland
Controls sleeping patterns
Thyroid gland
Controls how body uses energy
speedup or slowdown metabolism
Parathyroid gland
Regulate amount of calcium released into blood
Thymus
signal immune system
produce fight infections
Adrenal gland
Release hormone
allows body to respond to stress and react
Pancreas
Regulates level of sugars in blood
Ovaries
release female sex hormones
produce ova (eggs) for reproduction.
Testes
Release male sex hormones
Produce sperm for reproduction
Regulation of endocrine system
2 systems control and release hormones
Negative feedback system
Effect hormone stops or slows the release of hormones.
positive feedback system
Cause more hormone to be released.
