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Reflex Arc

Reflex arc co...

Question

Reflex arc consists of

A

Motor nerve

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B

Sensory nerve

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C

Both sensory and motor nerves

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D

None of the above

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Solution

The correct option is C Both sensory and motor nerves
The primary components of the reflex arc are the sensory-nerve cells (or receptors), that receive stimulation, in turn connecting to other nerve cells, that activate muscle cells (or effectors), which perform the reflex action.

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Similar questions

Q. One of the following gives the correct sequence of the components in a reflex arc. This is :
(a) Receptors → Muscle → Sensory neuron → Motor neuron → Spinal cord
(b) Receptors → Motor neuron → Spinal cord → Sensory neuron → Muscle
(c) Receptors → Spinal cord → Sensory neuron → Motor neuron → Muscle
(d) Receptors → Sensory neuron → Spinal cord → Motor neuron → Muscle

The sequence of the components of a reflex arc is

$R e c e p t o r s \to S p i n a l c o r d \to S e n s o r y n e u r o n \to M o t o r n e u r o n \to M u s c l e s$

Q. Put the following parts of a reflex arc in the correct order beginning with the sensory receptor.
A. Motor neuron
B. Interneuron
C. Effector
D. Sensory neuron
E. Sensory receptor

Q. Question 5
Which is the correct sequence of the components of a reflex arc?

(a) Receptors→ Muscles→ Sensory neuron→ Motor neuron→ Spinal cord
(b) Receptors→ Motor neuron → Spinal cord → Sensory neuron → Muscle
(c) Receptors → Spinal cord → Sensory neuron → Motor neuron → Muscle
(d) Receptors → Sensory neuron → Spinal cord → Motor neuron → Muscle

Q. Put the following parts of a reflex arc in the correct order beginning with the sensory receptor:
(A) Motor neuron
(B) Interneuron
(C) Effector
(D) Sensory neuron
(E) Sensory receptor

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