Biology 30 – Nervous System Practice Exam

Which structure carries afferent (sensory) information?

Ventral Root of Spinal Nerve Spinal Cord Meninges Dorsal Root of Spinal Nerve

Correct Answer:

Dorsal Root of Spinal Nerve

Explanation:

Afferent information travels from sensory receptors toward the central nervous system, and in the spinal pathway that input enters the CNS via the dorsal roots. The dorsal root contains the sensory (afferent) fibers, with their cell bodies located in the dorsal root ganglion just outside the spinal cord. In contrast, the ventral root carries motor (efferent) information from the spinal cord to muscles. The meninges are protective coverings around the CNS, not conduits for sensory signals, and the spinal cord is the processing center rather than the specific route for incoming sensory input. Therefore, the structure that carries afferent information is the dorsal root of the spinal nerve.

Access more questions from this quiz

Continue to Biology 30 – Nervous System Practice Exam for more practice questions and the full quiz experience.

Access More Questions