Reflex arc consists of
Motor nerve
Sensory nerve
Both sensory and motor nerves
None of the above

Sensory nerve

None of the above

Both sensory and motor nerves

Motor nerve

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Solution

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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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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

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The sequence of the components of a reflex arc is

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

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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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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

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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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Reflex arc consists of Motor nerveSensory nerveBoth sensory and motor nervesNone of the above

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.

Reflex arc consists of
Motor nerve
Sensory nerve
Both sensory and motor nerves
None of the above