People with AF often also have narrowing of the valve between the left atrium and the left ventricle. This causes the wall of the left atrium to become thicker. Suggest why.

  • Google+ icon
  • LinkedIn icon
  • 594 views

With a narrowed (stenosed) AV valve it is more difficult (requires more pressure) for the blood to pass from atrium to ventricle. The blood pressure in the atria is increased.

This means that the atrium must contract harder and with more force in order to pump the blood through the narrowed valve into the ventricles.

And becuase the muscle wall of the atria is working harder it begomes thicker.

Aaron H. Mentoring -Medical School Preparation- tutor, Mentoring -Per...

About the author

is an online A Level Human Biology tutor with MyTutor studying at Bristol University

How MyTutor Works

Still stuck? Get one-to-one help from a personally interviewed subject specialist.

95% of our customers rate us

Browse tutors

We use cookies to improve your site experience. By continuing to use this website, we'll assume that you're OK with this. Dismiss

mtw:mercury1:status:ok