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Heart Endocrine Function - Anatomy & Physiology (view source)
Revision as of 10:37, 3 July 2008
, 10:37, 3 July 2008no edit summary
|+ ''Natriuretic Peptides''
|+ ''Natriuretic Peptides''
!Hormone
!Hormone
!Site of Secretion within GIT
!Secreted From
!Action
!!Action
|-
|-
|<font color=Purple>Cholecystokinin</font>
|<font color=Purple>Atrial Natriuretic Peptide</font>
|Duodenum
|Atrial Myocytes
|Stimulates digestion of fat and protein by causing release of digestive enzymes and bile from the [[Pancreas - Anatomy & Physiology|pancreas]] and gall bladder.
|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.
|-
|-
|<font color=Purple>Gastrin</font>
|<font color=Purple>B-Type Natriuretic Peptide</font>
|G-Cells in Stomach and duodenum
|Ventricles of the Heart
|Stimulates Parietal cells in the [[Forestomach - Anatomy & Physiology|stomach]] to secrete HCl and Chief cells to secrete pepsinogen.
|Decreases vascular resistance, in the same ways as ANP but is 10x LESS potent.
|}
|}