Cell Signaling & Neural Signaling Review

Front

What part of a neuron receives information from other neurons?

Back

Dendrites are the part of a neuron that receives information from other neurons.

Front

What maintains the resting membrane potential in a neuron?

Back

Sodium-potassium pumps maintain the resting membrane potential in a neuron.

Front

What is a signal molecule that transmits nerve impulses across synapses?

Back

A neurotransmitter is a signal molecule that transmits nerve impulses across synapses.

Front

From which part of the neuron are neurotransmitters released?

Back

Neurotransmitters are released from the presynaptic neuron.

Front

What type of transmembrane receptor is a G-protein receptor?

Back

A G-protein receptor is a type of transmembrane receptor that activates intracellular signaling pathways.

Front

What is the function of myelin sheath in neurons?

Back

The myelin sheath insulates axons and increases the speed of nerve impulse transmission.

Front

What is an action potential?

Back

An action potential is a rapid change in membrane potential that propagates along the axon of a neuron.

Front

What role do ion channels play in neuron signaling?

Back

Ion channels allow the flow of ions across the neuron's membrane, which is crucial for generating action potentials.

Front

What is the difference between excitatory and inhibitory neurotransmitters?

Back

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

Front

What is synaptic transmission?

Back

Synaptic transmission is the process by which neurotransmitters are released from one neuron and bind to receptors on another.