Atrial natriuretic peptide

ANF is produced from the atrial walls of the heart when they are stretched. During heart failure stretching is very heavy and hence production of ANF increases many fold which is appropriate since part of the function of ANF is to assist the kidneys in excretion of salt and water. The excretion of salt and water therefore increases tremendously in heart failure.

 
       

 


 Cross section through cardiac fibers x40


Cardiac muscle explanatory video

 

 

 

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