Which of the following responses does not involve the brain as the coordinating centre?
A. Playing the piano
B. Increase in heart rate during exercise
C. Constriction of the pupil under bright light
D. Kicking up the lower leg when the knee cap is trapped
Please explain...
BIO CE 2005MCQ31 Urgent!
2007-10-22 7:10 am
回答 (2)
2007-10-22 5:05 pm
✔ 最佳答案
D.because knee jerk is a reflex action. the reflex arch only involves the spine. the brain has no part in this reflex.
圖片參考：http://upload.wikimedia.org/wikipedia/en/f/f0/ReflexArc1.jpg
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唔信我都信書啦.
2007-10-22 4:47 pm
B. increase in heart rate during exercise.
Reason, the increase of heart rate during exercise is to provide sufficient amount of oxygen for your body muscles and lungs, it does not involve the brain.
Reason, the increase of heart rate during exercise is to provide sufficient amount of oxygen for your body muscles and lungs, it does not involve the brain.
收錄日期: 2021-04-27 13:35:23
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