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Reflex Arc

Which of the ...

Question

Which of the following is not involved in knee-jerk reflex?

(a) Muscle spindle (b) Motor neuron (c) Brain (d) inter neurons

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Solution

(c) The brain is not involved in any reflex action (e.g., the knee-jerk reflex) while the muscle spindle, interneuron and motor neuron are the part of the reflex arch.

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Similar questions

One of the following gives the correct sequence of the components in a reflex arc. This is :

(a) Receptors $\to$ Muscle $\to$ Sensory neuron $\to$ Motor neuron $\to$ Spinal cord

(b) Receptors $\to$ Motor neuron $\to$ Spinal cord $\to$ Sensory neuron $\to$ Muscle

(c) Receptors $\to$ Spinal cord $\to$ Sensory neuron $\to$ Motor neuron $\to$ Muscle

(d) Receptors $\to$ Sensory neuron $\to$ Spinal cord $\to$ Motor neuron $\to$ Muscle

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. 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. Which of the following is not involved in knee- jerk reflex?

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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