016 The Release of Neurotransmitter

In this video, Leslie Samuel explains the role of neurotransmitters in the nervous system. The video covers the structure and function of synapses, including the synaptic cleft, synaptic vesicles, and receptors. It details the process of action potential traveling along neurons, leading to the release of neurotransmitters, which then bind to receptors on the receiving cell, facilitating communication between neurons. The video concludes with an invitation for viewers to ask questions or leave comments.

What is the primary focus of the axon terminal in neuron communication?

• To generate electrical signals

• To connect neurons to blood vessels

• To facilitate the release of neurotransmitters

• To store energy for the neuron

What is the synaptic cleft?

• The outer layer of a neuron

• A type of neurotransmitter

• The space between two neurons

• A part of the neuron that generates signals

What is stored inside synaptic vesicles?

• Calcium ions

• Receptors

• Neurotransmitters

• Action potentials

Which membrane is located before the synaptic cleft?

• Postsynaptic membrane

• Axon membrane

• Presynaptic membrane

• Dendritic membrane

What triggers the fusion of synaptic vesicles with the presynaptic membrane?

• The binding of neurotransmitters to receptors

• The opening of voltage-gated calcium channels

• The generation of an action potential

• The release of neurotransmitters

What happens when neurotransmitters bind to receptors on the receiving cell?

• The cell generates a new action potential

• The cell sends a signal

• The cell releases more neurotransmitters

• The cell becomes inactive

How do neurons primarily communicate with each other?

• Through electrical impulses

• By releasing neurotransmitters

• Using chemical signals in the blood

• Via direct physical contact