Each spinal nerve in a mammal arises from the spinal cord by two roots, a dorsal and a ventral. Of these the ventral roots is composed of

Options

A. Somatic motor and visceral motor fibres
B. Somatic sensory and visceral motor fibres
C. Somatic motor and visceral sensory fibres
D. Somatic sensory and visceral sensory fibres

Answer

A

Explanation

The ventral root of each spinal nerve consists of axons from motor neurons whose cell bodies are found within the gray matter of the spinal cord. A ventral root and a dorsal root unite to form spinal nerve which passes outward from the vertebral canal through an intravertebral foramen.