Endocrine Flashcards
Endocrine derived from the greek words
endo - within
krino - secrete
Composed of endocrine glands and specialized endocrine cells located throughout the body.
Endocrine system
Endocrine glands secrete chemical messengers called “____” into the bloodstream in order to produce a specific response to ____
hormones
target tissues or effectors.
Hormones derived from the Greek word
Hormon - to set in motion
hormones has two chemical categories
- Lipid- soluble
- Water-soluble
• Non-polar
• Small size and low solubility
in aqueous fluids.
Lipid- soluble hormones
• Polar
• Vary from small to large and
soluble in blood
Water-soluble hormones
Receptor Location: Nucleus or cytoplasm
Lipid-soluble hormones
• ReceptorLocation:Plasma membrane’s outer surface
Water-soluble hormones
Needs a binding protein for transport
Lipid-soluble hormones
dissolvedirectly into the blood and are delivered to the target tissue without attaching to binding protein.
Large hormones
need attachment to larger protein to avoid being filtered out of the blood.
Small hormones
There are three types of stimuli which regulate hormone release
- Humoral 2. Neural
- Hormonal