Questions: Which of the following is not true of motor (efferent) neurons? Motor (efferent) neurons are bipolar. The cell bodies of most motor (efferent) neurons are located in the CNS. Impulses from motor (efferent) neurons cause activity in skeletal muscles and glands. Motor (efferent) neurons carry impulses away from the CNS to the effector organs.

The answer is the first one: Motor (efferent) neurons are bipolar.

Explanation for each option:

1. Motor (efferent) neurons are bipolar. - This statement is not true. Motor neurons are typically multipolar, meaning they have one axon and multiple dendrites. Bipolar neurons, on the other hand, have one axon and one dendrite and are usually found in sensory pathways, such as in the retina of the eye.

2. The cell bodies of most motor (efferent) neurons are located in the CNS. - This statement is true. The cell bodies of motor neurons are generally located in the central nervous system (CNS), specifically in the spinal cord and brain.

3. Impulses from motor (efferent) neurons cause activity in skeletal muscles and glands. - This statement is true. Motor neurons transmit impulses from the CNS to effector organs, such as skeletal muscles and glands, causing them to act.

4. Motor (efferent) neurons carry impulses away from the CNS to the effector organs. - This statement is true. Motor neurons are responsible for carrying signals from the CNS to the effector organs, which include muscles and glands.

In summary, the incorrect statement is that motor (efferent) neurons are bipolar. They are actually multipolar.