The motor root of a spinal nerve is also referred to as the _________blank root.Multiple Choiceafferentdorsalposteriorventralsensory

Identifying the Correct Term

1. Understanding the Options

   • Afferent: This term pertains to sensory nerve fibers that carry signals toward the central nervous system (CNS).
   • Dorsal: Typically refers to the back side; in the context of spinal nerves, it is associated with sensory neurons.
   • Posterior: Similar to dorsal; refers to the backside of the body and often refers to sensory pathways.
   • Ventral: This term typically refers to the front or belly side; in the context of spinal nerves, it is associated with motor function.
   • Sensory: Refers to pathways that carry information toward the CNS (the opposite of motor pathways).

2. Analyzing the Terms

   • The motor root of a spinal nerve is responsible for sending motor commands from the CNS to the muscles, influencing movement.

3. Conclusion

   • Given that the motor root is associated with motor functions, the correct answer is ventral, as it describes the part of the spinal nerve associated with motor nerve fibers.

Final Answer

The motor root of a spinal nerve is also referred to as the ventral root.