Sponsored Links
Results 1 to 5 of 5
  1. #1
    Monsoonrain's Avatar
    Monsoonrain is offline Member 510 points
    Join Date
    Jul 2005
    Posts
    134
    Downloads
    0
    Uploads
    0
    Thanks
    0
    Thanked 0 Times in 0 Posts

    What happens to cerebral blood flow during exercise?

    Advertisements



    What happens to cerebral blood flow during exercise?what is the mechanism?
    Your opinion appriciated.

  2. #2
    ypoornima is offline Newbie 510 points
    Join Date
    Jul 2005
    Location
    NC,USA
    Posts
    11
    Downloads
    0
    Uploads
    0
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Cerebral Bl Flow

    Hi!
    The cerebral bl flow is totally autoregulated,so it should not change unless the PCO2 changes.

  3. #3
    petarm Guest
    It's true that cerebral blood flow is autoregulated, and one of the components of autoregulation is that active areas of the brain have vasodilatation in order to increase blood flow (which means efficient getting rid of CO2 and getting O2 for active neurons). So, in exercise, to my opinion, it would be vasodilatation especially in motor areas.

  4. #4
    drgeorgie is offline Newbie 510 points
    Join Date
    Jan 2006
    Posts
    1
    Downloads
    3
    Uploads
    0
    Thanks
    0
    Thanked 0 Times in 0 Posts
    the cerebral blood flow depends on arterial pco2....in exercise there is little change in arterial pco2.....so ans is no change

  5. #5
    docfletch is offline Newbie
    Join Date
    Apr 2005
    Posts
    1
    Downloads
    22
    Uploads
    0
    Thanks
    0
    Thanked 0 Times in 0 Posts
    During Exercise Total Blood flow to the brain remains constant. Regional distribution changes to the motor areas based on metabolic vasoregulation regulated by [PCO2] while inactive areas have flow decreased by increasing resistance.

Similar Threads

  1. Physiology - Calculating Blood Flow
    By ScienceAnon in forum Main Foreign Medical Schools Forum
    Replies: 0
    Last Post: 08-02-2006, 06:49 PM
  2. CT cerebral abscess
    By ilovetahira in forum Pathology Forum
    Replies: 5
    Last Post: 04-26-2006, 06:43 PM
  3. Stroke vs. Cerebral Infarction
    By heya in forum Physiology Forum
    Replies: 1
    Last Post: 03-03-2006, 10:33 AM
  4. Flow chart
    By Mario in forum USMLE Step 2 CK Forum
    Replies: 0
    Last Post: 07-10-2005, 05:10 PM
  5. infarct in the territory of the middle cerebral artery
    By pathologyguy in forum Pathology Forum
    Replies: 6
    Last Post: 12-24-2004, 05:25 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •