12.8.2c The Role of the Human Nervous System (Objective Questions)

Diagram shows the main components involved in body coordination.

Which of the following is correct about P, Q and R?

Diagram shows three types of neurones.

Name the neurones P, Q and R?

Diagram shows the structure of a neurone.

Which statements about the parts labeled W, X, Y and Z are correct?
I.        W receives impulses from other neurone
II.       X controls all activities of the neurone
III.     Y carries nerve impulses away from the cell body
IV.     Z speeds up the transmission of the nerve impulses

Which of the following is the function of myelin sheath?
I.          Supply nutrients to axon
II.        Carries nerve impulses away from the cell body
III.       Speed up the transmission of the nerve impulses
IV.       To ensure nerve impulses travel in one direction only