Difference between revisions of "Heart Endocrine Function - Anatomy & Physiology"

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<big><center>[[Endocrine System - Anatomy & Physiology|'''BACK TO ENDOCRINE SYSTEM ANATOMY & PHYSIOLOGY''']]</center></big>
  
 
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The Heart releases Natriuretic Peptides which act to lower blood pressure and thus work antagonistically to the [[Renin-Angiotensin-Aldosterone System (RAAS) - Anatomy & Physiology|Renin-Angiotensin-Aldosterone System]].
The [[Heart - Anatomy & Physiology|Heart]] releases Natriuretic Peptides which act to lower blood pressure and thus work antagonistically to the [[Renin Angiotensin Aldosterone System|Renin-Angiotensin-Aldosterone System]].
 
  
  
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|+ ''Natriuretic Peptides''
 
|+ ''Natriuretic Peptides''
 
!Hormone
 
!Hormone
!Secreted From
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!Site of Secretion within GIT
 
!Action
 
!Action
 
|-
 
|-
|<font color=Purple>Atrial Natriuretic Peptide</font>
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|<font color=Purple>Cholecystokinin</font>
|Atrial Myocytes
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|Duodenum
|Released in response to triggers including atrial stretch, ANP increases sodium and thus water excretion at the kidneys, reducing blood volume and thus pressure. It also inhibits the Renin-Angiotensin Aldosterone System and relaxes arterioles. further reducing systemic blood pressure.
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|Stimulates digestion of fat and protein by causing release of digestive enzymes and bile from the [[Pancreas - Anatomy & Physiology|pancreas]] and gall bladder.
 
|-
 
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|<font color=Purple>B-Type Natriuretic Peptide</font>
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|<font color=Purple>Gastrin</font>
|Ventricles of the Heart
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|G-Cells in Stomach and duodenum
|Decreases vascular resistance, in the same ways as ANP but is 10x LESS potent.
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|Stimulates Parietal cells in the [[Forestomach - Anatomy & Physiology|stomach]] to secrete HCl and Chief cells to secrete pepsinogen.
 
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[[Category:Endocrine System - Anatomy & Physiology]]
 

Revision as of 10:24, 3 July 2008

BACK TO ENDOCRINE SYSTEM ANATOMY & PHYSIOLOGY

The Heart releases Natriuretic Peptides which act to lower blood pressure and thus work antagonistically to the Renin-Angiotensin-Aldosterone System.


Natriuretic Peptides
Hormone Site of Secretion within GIT Action
Cholecystokinin Duodenum Stimulates digestion of fat and protein by causing release of digestive enzymes and bile from the pancreas and gall bladder.
Gastrin G-Cells in Stomach and duodenum Stimulates Parietal cells in the stomach to secrete HCl and Chief cells to secrete pepsinogen.