Synapses Chapter 11

What is the function of the axon of a presynaptic neuron?

• To receive signals from other neurons

• To transmit signals to the synapse

• To process information within the neuron

• To store neurotransmitters

What is the role of synapses in neural communication?

• To store genetic information

• To transmit electrical signals

• To facilitate communication between neurons

• To produce energy for the neuron

What is the cell body (soma) of a postsynaptic neuron responsible for?

• Transmitting signals to other neurons

• Receiving signals from the synapse

• Storing neurotransmitters

• Producing electrical impulses

What type of synapse connects an axon to a dendrite?

• Axodendritic synapse

• Axosomatic synapse

• Axoaxonal synapse

• Dendritic synapse

Which part of the neuron is directly involved in axosomatic synapses?

• Dendrites

• Cell body

• Axon

• Synaptic cleft

What is the function of axoaxonal synapses?

• Connects axon to dendrite

• Connects axon to cell body

• Connects axon to another axon

• Connects dendrite to cell body

What is the primary function of neurotransmitters in the nervous system?

• To transmit signals across a synapse

• To store energy in cells

• To provide structural support to neurons

• To protect neurons from damage

What is the primary function of chemical synapses in neurons?

• To transmit electrical signals directly

• To transmit signals using neurotransmitters

• To store energy for the neuron

• To protect the neuron from damage

What is the role of chemical synapses in neuron communication?

• They transmit signals using electrical impulses.

• They transmit signals using neurotransmitters.

• They block signals between neurons.

• They transmit signals using magnetic fields.

What enters the axon terminal when voltage-gated Ca²⁺ channels open?

• Na⁺ ions

• K⁺ ions

• Ca²⁺ ions

• Cl⁻ ions