Question

Assertion :All spinal nerves are mixed nerves. Reason: Each spinal nerve has a sensory root and a motor root.

• A. Both A and R are true and R explains A.
• B. Both A and R are true but R doesnt explain A.
• C. Only A is true but R is false.
• D. A is false but R is true.

Answer 1

The correct option is A Both A and R are true and R explains A.

Spinal nerves arise from every segment of the spinal cord. They have both dorsal and ventral root. Every spinal nerve has both sensory and motor fibers. Hence they are called mixed nerves. Hence, the correct answer is option A.