21    V S 223  The  Endocrine  System
Upcoming SlideShare
Loading in...5
×
 

21 V S 223 The Endocrine System

on

  • 390 views

 

Statistics

Views

Total Views
390
Views on SlideShare
389
Embed Views
1

Actions

Likes
0
Downloads
14
Comments
0

1 Embed 1

http://www.slideshare.net 1

Accessibility

Categories

Upload Details

Uploaded via as Microsoft PowerPoint

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

21    V S 223  The  Endocrine  System 21 V S 223 The Endocrine System Presentation Transcript

  • The Endocrine System VS 223 Dr. Noland
  • Endocrine Glands • Secrete their product directly into bloodstream • Known as “ductless” glands
  • Hormones • Act on target organs due to specific receptors located on the target plasma membrane
  • Neuroendocrine Reflex • Nerve input on the afferent end • Hormonal input on the efferent end • Suckling reflex • Induced ovulation in cats, rabbits
  • Endocrine Glands • Discrete gland - Adrenal gland • Organ – Duodenum • Combo of Exocrine/Endocrine - Pancreas
  • Classification of Hormones • Peptides – chains of amino acids –Most hormones • Amines – tyrosine derivatives –Catecholamines, T4 • Steroids – cholesterol derivatives –Gonadal hormones and adrenal cortical hormones
  • Mechanisms of Action • Hormones circulate in the bloodstream and bind with target organ cell receptors to affect a change in the target cell
  • Hydrophilic Hormones Peptides and Catecholamines
  • Lipophilic Hormones Steroids and Thyroid
  • Hormonal Action
  • Feedback Regulation