CPAP 9.1: Nervous system

Front

What is the cell body of a neuron?

Back

The cell body, or soma, is the part of a neuron that contains the nucleus and organelles. It integrates signals received from the dendrites.

Front

What is the function of dendrites in a neuron?

Back

Dendrites are the branching extensions of a neuron that receive messages from other neurons and transmit them to the cell body.

Front

What are afferent neurons?

Back

Afferent neurons, also known as sensory neurons, transmit information from sensory organs to the central nervous system.

Front

What is the autonomic nervous system?

Back

The autonomic nervous system is a part of the peripheral nervous system that regulates involuntary bodily functions such as heart rate, blood pressure, and digestion.

Front

What is the myelin sheath?

Back

The myelin sheath is a fatty layer that surrounds the axon of some neurons, insulating it and speeding up the transmission of electrical signals.

Front

What is the role of the axon in a neuron?

Back

The axon is a long, slender projection of a neuron that conducts electrical impulses away from the cell body to other neurons or muscles.

Front

What are motor neurons?

Back

Motor neurons are responsible for transmitting signals from the central nervous system to muscles, enabling movement.

Front

What is the central nervous system?

Back

The central nervous system consists of the brain and spinal cord, and it processes information and coordinates responses throughout the body.

Front

What is the function of axon terminals?

Back

Axon terminals are the endpoints of an axon where neurotransmitters are released to communicate with other neurons.

Front

What is the difference between the somatic and autonomic nervous systems?

Back

The somatic nervous system controls voluntary movements, while the autonomic nervous system regulates involuntary functions.