Neurons and neurotransmitters for a test

What is a neuron?

A neuron is a nerve cell that transmits information through electrical and chemical signals.

Function of dendrites?

Dendrites receive signals from other neurons and transmit them to the cell body.

What is the role of the axon?

The axon carries electrical impulses away from the cell body to other neurons or muscles.

True or false: Neurons can regenerate.

False, because most neurons do not regenerate effectively after injury.

Difference between excitatory and inhibitory neurotransmitters

Excitatory neurotransmitters increase the likelihood of an action potential, while inhibitory neurotransmitters decrease it.

What does myelin sheath do?

It insulates the axon and speeds up the transmission of electrical impulses.

Fill in the blank: _____ are chemical messengers in the brain.

Neurotransmitters are chemical messengers in the brain.

What is synaptic transmission?

It is the process where neurotransmitters are released from one neuron and bind to receptors on another.

Which neurotransmitter is involved in mood regulation?

Serotonin plays a key role in regulating mood and emotions.

True or false: All neurotransmitters are the same.

False, because different neurotransmitters have different functions and effects.

What is neurotransmitter reuptake?

It is the process where neurotransmitters are reabsorbed by the presynaptic neuron after transmitting a signal.

Difference between neurotransmitters and hormones

Neurotransmitters transmit signals across synapses in the nervous system, while hormones are released into the bloodstream affecting distant organs.

What are neurotransmitter receptors?

Proteins on the surface of neurons that bind to specific neurotransmitters and trigger a response.

What is dopamine's main function?

Dopamine is involved in reward, motivation, and the regulation of movement.