Question 17N.3.SL.TZ0.05
| Date | November 2017 | Marks available | [Maximum mark: 5] | Reference code | 17N.3.SL.TZ0.05 |
| Level | SL | Paper | 3 | Time zone | TZ0 |
| Command term | Identify, List, Outline, Suggest | Question number | 05 | Adapted from | N/A |
The diagram shows the human brain.
[Source: By charlyzon (Own work) [CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons.]
Identify the structure labelled A.
[1]
medulla «oblongata»
OR
brain stem
List two functions of the structure labelled A.
[2]
a. breathing «rate»
b. heart function
c. digestion/saliva production
d. swallowing reflex
e. coughing
f. vomiting
g. blood pressure
h. state of consciousness/sleep
Allow any two functions.
No ECF
[Max 2 Marks]
Outline the reason that Broca’s area is more developed in humans than other primates.
[1]
«controls motor functions involved with speech and» speech is more developed in humans
Suggest how an injury to the brain can help in understanding brain function.
[1]
observe any changes in the person