BLG101 Chapter 16
What does the endocrine system do?
influences metabolic activities via hormones
Are endocrine responses faster or slower than NS responses?
slower
What are the 5 endocrine glands?
pituitary, thyroid, parathyroid, adrenal and pineal glands
What organ is the hypothalamus?
neuroendocrine organ
What 3 glands have exocrine and endocrine functions?
pancreas, gonads and placenta
What are 6 other tissues and organs that produce hormones?
adipose cells, thymus, cells in walls of small intestine, stomach, kidneys and heart
What are the main classes of hormones?
amino acid-based hormones and steroids
What are amino acid-based hormones?
amino acid derivatives, peptides and protiens
Are amino acid-based hormones water soluble or lipid soluble?
water soluble
What are steroids?
synthesized from cholesterol, gonadal and adrenocortical hormones
Steroids are water soluble. True or False?
false, they are lipid soluble
The thyroid hormones are lipid soluble hormones. True or False?
true
What do water soluble hormones do?
act on plasma membrane receptors, act via G protien second messengers and cannot enter a cell