| Date | November 2014 | Marks available | 1 | Reference code | 14N.1.SL.TZ0.26 |
| Level | Standard level | Paper | Paper 1 | Time zone | TZ0 |
| Command term | Question number | 26 | Adapted from | N/A |
Question
What role does the medulla of the brain have in controlling heart rate?
A. To secrete adrenaline to speed up the heart.
B. To stimulate myogenic heart muscle contraction.
C. To block pacemaker activity.
D. To adjust heart rate to changing blood pressure.
Markscheme
D
Examiners report
[N/A]
Syllabus sections
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