The Nervous System

What is the function of motor neurons?

• Motor neurons transmit signals from the central nervous system to muscles, enabling movement.

• Motor neurons are responsible for processing sensory information.

• Motor neurons connect different parts of the brain to each other.

• Motor neurons regulate the body's temperature and metabolism.

What are dendrites?

• Branched extensions of a neuron that receive signals from other neurons and transmit them to the cell body.

• The main part of a neuron that contains the nucleus.

• The protective covering of a neuron that insulates the axon.

• The chemical messengers that transmit signals between neurons.

What are the main parts of a neuron?

• Cell body, dendrites, axon, and axon terminals

• Nucleus, ribosomes, mitochondria, and Golgi apparatus

• Neurons, glial cells, synapses, and neurotransmitters

• Dendrites, soma, synapse, and myelin sheath

What is the role of the spinal cord in the nervous system?

• The spinal cord serves as a major conduit for information traveling between the brain and the rest of the body, facilitating reflex actions and communication.

• The spinal cord is responsible for producing hormones that regulate bodily functions.

• The spinal cord acts as a storage center for memories and learned behaviors.

• The spinal cord primarily controls the body's voluntary movements.

What is the central nervous system (CNS)?

• A network of nerves that connects the brain to the limbs.

• The part of the nervous system that consists of the brain and spinal cord, processing information and coordinating responses throughout the body.

• A system responsible for regulating hormones in the body.

• The peripheral nervous system that controls voluntary movements.

What is the role of the brainstem?

• It controls basic life functions such as breathing, heart rate, and blood pressure.

• It is responsible for higher cognitive functions like thinking and reasoning.

• It regulates the body's immune response and inflammation.

• It coordinates voluntary muscle movements and balance.

What are sensory neurons?

• Specialized nerve cells that transmit information from sensory receptors to the central nervous system.

• Nerve cells that only transmit pain signals to the brain.

• Cells that are responsible for muscle contraction and movement.

• Neurons that connect different parts of the brain without sensory input.

What is a reflex action?

• A voluntary movement in response to a stimulus.

• An automatic response to a stimulus that occurs without conscious thought, often involving the spinal cord.

• A learned behavior that requires conscious thought.

• A reaction that only occurs in the brain without spinal involvement.

What is the function of the cerebellum?

• Regulating heart rate and blood pressure

• Coordinating voluntary movements, balance, and posture

• Processing visual information

• Controlling emotions and memory