Question

4. Write the main functions of the following:
(a) Sensory neuron (b) Cranium (c) Vertebral column (d) Motor neuron

Answer 1

Sensory neurons are nerve cells within the nervous system responsible for converting external stimuli from the organism's environment into internal electrical impulses. For example, some sensory neurons respond to tactile stimuli and can activate motor neurons in order to achieve muscle contraction.

Answer 2

Answer:

see below

Explanation:

sensory neurones -transmit impulse from receptors to brain .

cranium - or skull protects or inner brain from external injury.

vertebral column-The major function of the vertebral column is protection of the spinal cord; it also provides stiffening for the body and attachment for the pectoral and pelvic girdles and many muscles. In humans an additional function is to transmit body weight in walking and standing.

motor neurones - transmit impulses from brain to recepters.

(receptors are the special nerve fibre for conducting impulses)

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