Question

Spinal cord and sympathetic ganglion of autonomous nervous system are connected by

• A. Ramus ventralis
• B. Ramus communicans
• C. Ramus dorsalis
• D. Connective

Answer 1

The correct option is B Ramus communicans

Ramus communicans is the branch which connects the spinal cord and the sympathetic trunk. There are two forms of ramus communicans. They are gray ramus communicans and white ramus communicans. They are responsible for conduction of signals in the sympathetic nervous system. The white rami communicans outflow from the spinal cord. The gray rami communicans are composed of largely unmyelinated neurons.

Thus, the correct answer is option B.