Nervous System Overview

Front

What is the function of the axon terminal in a neuron?

Back

The axon terminal is responsible for transmitting signals to other neurons or target cells by releasing neurotransmitters.

Front

What are afferent neurons?

Back

Afferent neurons are sensory neurons that transmit information from sensory organs to the central nervous system.

Front

Define neurotransmitter.

Back

A neurotransmitter is a chemical substance released at the end of an axon terminal that transmits signals across a synapse to another neuron or target cell.

Front

What is a synapse?

Back

A synapse is the junction between two neurons where an impulse is transferred from one neuron to another using neurotransmitters.

Front

What role do dendrites play in a neuron?

Back

Dendrites are the parts of a neuron that receive information from other neurons.

Front

What is the primary role of the central nervous system?

Back

The central nervous system processes information and coordinates responses throughout the body.

Front

What is the difference between afferent and efferent neurons?

Back

Afferent neurons carry sensory information to the central nervous system, while efferent neurons carry motor commands from the central nervous system to muscles and glands.

Front

What is the myelin sheath and its function?

Back

The myelin sheath is a fatty layer that insulates axons, speeding up the transmission of electrical signals along the neuron.

Front

What is the resting potential of a neuron?

Back

Resting potential is the electrical charge difference across the neuron's membrane when it is not actively transmitting a signal.

Front

What happens during an action potential?

Back

During an action potential, the neuron's membrane potential rapidly rises and falls, leading to the transmission of an electrical signal along the axon.