2.11.1 Human Nervous System (Structured Questions)

Question 1:Diagram 1 shows the structure of a neurone.(a) Based on the diagram, mark (\/) the type of neurone in the box provided.(b)(i) Name P.(b)(ii) State two functions of P.1._____________________2._____________________(c) Name Q.(d) Diagram 2 shows the pathway of an impulse.Mark (\/) the location of neurone in Diagram 2. Answer:(a)(b)(i) Dendrite(b)(ii)1. Receives impulse from other neurones.2. … Read more

2.5.5 Voluntary Actions and Involuntary Actions

2.5.5 Voluntary Actions and Involuntary Actions 1. Voluntary actions are actions we are aware of and which are done according to our intention.   2. Voluntary actions are controlled by the cerebrum.   3. Involuntary actions take place continuously and automatically in the body, without us being consciously aware of them. 4. Involuntary actions are controlled by the medulla … Read more

2.4 Proprioceptors in Maintaining Balance and Body Coordination

2.4 Proprioceptors in Maintaining Balance and Body Coordination   1. The sense which helps us to detect position and movement of the limbs by using proprioceptors is known as the kinaesthetic sense.     2. Proprioceptor is a group of highly sensitive stretch receptors in muscle, tendons and ligaments.   3. Proprioceptors function to maintain body balance, body … Read more