| Date | May 2017 | Marks available | 3 | Reference code | 17M.3.SL.TZ2.5 |
| Level | Standard level | Paper | Paper 3 | Time zone | Time zone 2 |
| Command term | Evaluate | Question number | 5 | Adapted from | N/A |
Question
Outline the function of the autonomic nervous system in the human body.
[2]
a.
Evaluate the use of the pupil reflex to test for brain damage.
[3]
b.
Markscheme
a. controls involuntary processes in the body
b. «uses centres located» in the brain stem/medulla
c. example of action of autonomic nervous system eg: the regulation of heart rate
a.
a. a light is shone in the eye
b. «when light shone in eyes» if pupil does not constrict then there is some brain damage
c. if the pupil constricts it rules out certain types of brain damage
d. different response from each eye could indicate brain damage
e. more testing is needed to determine area/extent of brain damage OWTTE
b.
Examiners report
[N/A]
a.
[N/A]
b.
Syllabus sections
Option A: Neurobiology and behaviour » Option A: Neurobiology and behaviour (Core topics) » A.2 The human brain
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