| Date | May 2017 | Marks available | 1 | Reference code | 17M.1.SL.TZ1.29 |
| Level | Standard level | Paper | Paper 1 | Time zone | Time zone 1 |
| Command term | Question number | 29 | Adapted from | N/A |
Question
What helps to keep blood flowing onwards away from the heart in an artery?
A. Valves
B. Elastic fibres
C. Contraction of skeletal muscles
D. Having a wide lumen
Markscheme
B
Examiners report
[N/A]
Syllabus sections
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