Question

State the functions of die following :
(a) Synapse
(b) Association neuron
(c) Medullary sheath
(d) Medulla oblongata
(e) Cerebellum
(f) Cerebrospinal fluid.

Answer 1

(a) Synapse: The function of the synapse is to transfer information from one cell to another. The transfer can be from nerve to nerve (neuro-neuro), or nerve to muscle (neuro-myo).
(b) Association neurons: carry impulses from the motor neuron to the Central Nervous System.
(c) A medullary sheath is a protective covering surrounding and insulating certain nerve fibres.
(d) Medulla oblongata controls respiration, vasodilation, cardiac functioning and reflexes like vomiting, coughing, sneezing etc
(e) Cerebellum The main function of the cerebellum is to maintain the balance of the body and coordinate muscular activity.
(f) Cerebrospinal fluid Which acts as a shockproof cushion and forms a medium for the exchange of food materials, waste products, and respiratory gases with neurons.