Answer

A student made a coloured diagram of the main regions and structures of the human brain (diagram below).

Image

(a) Using standard labelling lines, identify clearly on the diagram the following

structures:

(i) the cerebellum

(ii) the medulla oblongata

(iii) pons

(iv) hypothalamus

(v) pituitary gland

(vi) thalamus

NB penalise crossing of lines with 0 mark for structure identified

[ 6 ]

(b) Describe the function of the medulla oblongata, the cerebellum and cerebral

hemispheres.

Quality / communication not assessed

(All) receive information from sensory organs / ref. to sensory input ;

Idea of interpretation / coordination of information ;

Initiates / transmits impulses to effector ;

Cerebral hemispheres / cerebrum

Ref. to voluntary action ;

Ref. to named sense ;

Ref to thought / learning / intelligence / memory / personality / emotion / speech /

language ;

Cerebellum

Idea of / to control(s) skeletal / muscular movement ;

Ref. to modification of movement / named example e.g. talking ;

Balance / posture / muscle tone ;

Medulla oblongata

Ref. to involuntary action ;

Involved in homeostatic control / correct named example ;

Ref. to simple reflex centre / named example

[ 10 ]

[ Total: 16 marks ]