| Date | May 2021 | Marks available | 1 | Reference code | 21M.1.SL.tz0.3 |
| Level | Standard Level | Paper | Paper 1 | Time zone | time zone 0 |
| Command term | Question number | 3 | Adapted from | N/A |
Question
The diagram shows the skeletal muscles in the anterior upper leg. Which muscle is labelled X?
A. Rectus femoris
B. Vastus medialis
C. Sartorius
D. Vastus lateralis
Markscheme
D
Examiners report
Common higher level question. Mid-difficulty question Answers A & B were the main distractors. G2 comments suggest that the diagram lacked clarity. Although the diagram does not specifically annotate the leg the features of the skeletal system provide anatomical information which allows candidates to determine the muscle being identified.
Syllabus sections
- 19N.2.HL:.tz0.3a.i: State the names of the muscles at X and Y. X: Y:
- 16N.1.SL.tz0.3: Which muscle is on the anterior region of the body? A. Soleus B. Pectoralis C. Biceps...
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18N.1.SL.tz0.3:
What muscle is labelled X in the diagram below?
[Source: adapted from https://commons.wikimedia.org/wiki/File:Sartorius_3D.gif, BodyParts3D,
© The Database Center for Life Science licensed under CC Attribution-Share Alike 2.1 Japan.]A. Iliopsoas
B. Sartorius
C. Vastus lateralis
D. Vastus intermedialis
- 19M.1.SL.tz0.3: What is the muscle labelled X in the diagram? A. Abdominus rectus B. External...
- 17M.1.SL.tz0.4: Which muscles form the quadriceps femoris? A. Rectus femoris, vastus intermedialis, vastus...
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20N.2.SL.tz0.2b:
Calculate the difference in stiffness, in N m–1, between massaged muscle and placebo post-massage for the muscle identified in 2(a).
- 20N.2.SL.tz0.2a: Identify the massaged muscle with the greatest stiffness post-run.
- 20N.2.SL.tz0.2c: Deduce the effect of post-exercise massage on muscle stiffness at 72 hours post-massage.
- 20N.2.HL:.tz0.3d: State the anatomical location of the iliopsoas.
