AP PSYCHOLOGY

Detailed explanation-1: -Motor neurons carry messages away from the brain to the rest of the body to allow muscles to move.

Detailed explanation-2: -Motor neurons carry messages away from the brain to the rest of the body.

Detailed explanation-3: -Motor neurons are crucial for voluntary and involuntary movements. They allow the brain and spinal cord to communicate with muscles, organs, and glands all over the body. They send information away from the central nervous system to the muscle, organ, or gland that needs to react.

Detailed explanation-4: -Motor neurons are covered with ion channels, which open in response to electrical signals from the brain. Once these ion channels are open, a series of cascading reactions allows the signal to reach the skeletal muscle cells, which ultimately results in muscle contraction.

Detailed explanation-5: -A neuron sending a signal (i.e., a presynaptic neuron) releases a chemical called a neurotransmitter, which binds to a receptor on the surface of the receiving (i.e., postsynaptic) neuron. Neurotransmitters are released from presynaptic terminals, which may branch to communicate with several postsynaptic neurons.