Question

The given figure shows a man experiencing a sudden withdrawal of the leg that got in contact with a pointed object. Which of the following nervous pathways gives such response?

• A. $Receptor\to Efferentnervefibre\to Greymatterofspinalcord\to Afferentnervefibre\to Effector$
• B. $Receptor\to Afferentnervefibre\to Greymatterofspinalcord\to Efferentnervefibre\to Effector$
• C. $Effector\to Afferentnervefibre\to Whitematterofspinalcord\to Efferentnervefibre\to Receptor$
• D. $Receptor\to Efferentnervefibre\to Whitematterofspinalcord\to Afferentnervefibre\to Effector$

Answer 1

Answer: (B)

$Receptor\to Afferentnervefibre\to Greymatterofspinalcord\to Efferentnervefibre\to Effector$

The withdrawal reflex is a spinal reflex intended to protect the body from damaging stimuli. When a body suddenly comes in contact with the pointed objects, the receptors are stimulated and pass information to the afferent nerve fiber, which in turn goes to the grey matter of spinal cord then to efferent nerve fiber and finally to the effector.

So, option B is the correct option.