Question 7 Look at picture a) and explain why he may feel light headed after sta

Question

Question 7 Look at picture a) and explain why he may feel light headed after standing up (if he seats 4 long)? Aorta Superior mesenternc atery Dilated Reduced low to intestines to intestines -common iliac arteries Constricted Dilated Reduced flow to legs Increased fiow to lags Selected Answer vasodilation of heart arteries will occur as the heart circulation was earlier constricted vasodilation of femoral arteries will occur as the leg drculation was garlier constricted Answers vasodilation of heart arteries will occur as the heart circulation was earlier constricted vasodilation of carotid arteries will occur as the brain circulation was earlier constricted all of these

Explanation / Answer

a typicaal hypotensive episode occurs which is casued by blood being pooled in trunk and legs and blood supply to head is contricted, when someone stand up all of a sudden, the heart pump the blood fast to supply blood to the brain which caused light headedness and dizziness. so the answer should be

Vasodilation of carotid arteries will occur as the brain circulation was earlier constricted.

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