Endocrine System - The The Endocr ine Endocr ine System...

Info iconThis preview shows pages 1–17. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: The The Endocr ine Endocr ine System System H or mon H or mon es es Chemical substances secreted by endocrine (ductless) glands. These chemicals are carried by blood to their respective target cells. What would be a slow long-term process? Tend to control slow long-term activities in the body. Pr imar y Functions of Pr imar y Functions of H or mones H or mones Homeostasis Growth and Development Reproduction Energy Metabolism Behavior Chemical Composition Chemical Composition of H or mones of H or mones Steroids Steroids Proteins/Polypeptides Proteins/Polypeptides Amines Amines Ster oids Ster oids Some Some Pr otein/Polypeptide Pr otein/Polypeptide H or mones H or mones Glucagon Insulin Oxytocin ADH Calcitonin Amine Amine s s tyr osine thyr oxine epinephr ine Negative Negative Feedback Loop Feedback Loop blood glucose low stimulates glucagon fr om pancr eas glucose r elease fr om liver stimulates blood glucose high inhibits Biological Biological Cycles Cycles M echanism of Action on Tar get Cells r espon se endocr i ne cell tar get cell hor mon es r eceptor pr otein Water soluble hormone M echanism of Action on Tar get Cells r espon se endocr i ne cell tar get cell hor mon es intr acellu lar lipid soluble hormone Tr opic Ver sus Nontr opic Tr opic Ver sus Nontr opic H or mones H or mones Tropic hormones- stimulate the production and secretion of hormones by other endocrine glands; ex. TSH Nontropic hormones- stimulates cellular growth, metabolism, or other functions; ex. thyroxine Major Endocrine Organs pineal gland hypothalamus pituitary gland thyroid gland parathyroid glands thymus gland adrenal glands pancreas ovaries testes pineal gland hypothalamus pituitary gland Endocr ine Or gans of the Br ain Secreted directly in CSF to blood High levels at night make us sleepy; low level during day Pineal gland is stimulated by darkness and inhibited by light Function in regulating circadian rhythms (sleep, body temp, appetite) biological clock Pineal Gland Produces melatonin (synthesized from seratonin, a derivative of tryptophan) The Pituitar y Gland Posterior Pituitary...
View Full Document

This note was uploaded on 04/19/2011 for the course BIOL 101 taught by Professor Wong during the Fall '09 term at University of Hawaii, Manoa.

Page1 / 57

Endocrine System - The The Endocr ine Endocr ine System...

This preview shows document pages 1 - 17. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online