ANATOMY

GENERAL ANATOMY

NERVOUS SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is a motor neuron?
A
a neuron that passes information to muscles
B
a neuron that carries response information to muscles and other organs
C
a neuron that detects stimuli
Explanation: 

Detailed explanation-1: -Overall, motor neurons (or motoneurons) comprise various tightly controlled, complex circuits throughout the body that allows for both voluntary and involuntary movements through the innervation of effector muscles and glands. The upper and lower motor neurons form a two-neuron circuit.

Detailed explanation-2: -Neurons carry messages from the brain via the spinal cord. The neurons that carry these messages to the muscles are called motor neurons.

Detailed explanation-3: -Interneurons. As the name suggests, interneurons are the ones in between-they connect spinal motor and sensory neurons. As well as transferring signals between sensory and motor neurons, interneurons can also communicate with each other, forming circuits of various complexity.

Detailed explanation-4: -Motor neurons are also called efferent neurons.

Detailed explanation-5: -Efferent, or motor, neurons transmit impulses from the CNS to effector organs such as muscles and glands.

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