MHT CET · BIOLOGY · STD 12 - 9. Control and Coordination

Ramus communicans contain ___________ nerve fibres.

A somatic sensory
B visceral sensory
C somatic motor
D visceral motor

Verified Solution

Answer & Solution

Correct Answer

(D) visceral motor

Step-by-step Solution

Detailed explanation

Ramus communicans is the smallest spinal nerve and is given out from \(1^{\text {st }}\) thoracic upto \(3^{\text {rd }}\) lumbar (L3) spinal nerve. It joins the sympathetic ganglia.

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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