Question

Differentiate between the following pairs with reference to the aspect in brackets.

(a) Cerebrum and cerebellum (function).

(b) Sympathetic nervous system and parasympathetic nervous system (overall effect on the body).

(c) Sensory nerve and motor nerve (direction of impulse carried).

(d) Medulla oblongata & Cerebellum (function).

(e) Cerebrum and spinal cord (arrangement of cytons and axons of neurons).

Answer 1

(a)

Cerebrum	Cerebellum
The cerebrum controls all voluntary actions. It enables us to think, reason, plan and memorize.	The cerebellum, on the other hand, maintains the balance of the body and coordinates muscular activity.

(b)

Sympathetic Nervous System	Parasympathetic Nervous System
The sympathetic nervous system prepares the body for violent action against the abnormal condition.	The parasympathetic nervous system is concerned with re-establishing normal conditions after the violent act is over.

(c)

Sensory Nerve	Motor Nerve
Sensory nerve brings impulses from the receptors i.e. sense organs to the brain or spinal cord.	Motor nerve carries impulse from the brain or spinal cord to effector organs such as muscles or glands.

(d)

Medulla Oblongata	Cerebellum
Medulla oblongata controls the activities of internal organs and many other involuntary actions	The cerebellum, on the other hand, maintains the balance of the body and coordinates muscular activity.

(e)

Cerebrum	Spinal Cord
The grey matter containing cytons lies in the cortex (outer region) while the white matter containing axons lies in the medullary region (inner region).	The grey matter containing cytons lies in the medullary region i.e. inner side while the white matter containing axons lies in the cortex i.e. the outer region.