10.1 Nervous system (Synapse) DB024

The gap that a message has to cross to get from one neuron to the other is called the _____

• synapse
• dendrite
• axon
• synaptic cleft

What is W?

• Axon Terminal Button

• Neurotransmitters

• Dendrite

• Synapse

What is Y?

• Axon terminal

• Neurotransmitters

• Dendrite

• Synapse

A chemical produced by neurons that carries messages to other neurons....

• myelin sheath

• neurotransmitter

• axon

• axon terminal

What type of gated channel is #2?

• Na⁺

• K+

• Ca²⁺

• Mg²⁺

What is contained in #4?

• Acetylcholine

• Acetylcholinase

• Na⁺

• K⁺

• Ca²⁺

What is the purpose of Ca²⁺ entering the cell?

• They halt the action potential

• They signal for the synaptic vesicles to move towards the membrane

• The start a new action potential

• The signal the release of acetylcholinase

What is the response in the postsynaptic cell once the acetylcholine has bound to it?

• In opens the Na⁺ gated channels and Na+ rush in

• It opens the Ca²⁺ gated channels and Ca2+ rush in

• It closes the K⁺ channels creating a resting potential

• It releases its own neurotransmitter into the synaptic cleft

What is happening at the point labelled X?

• Neurotransmitter binding

• Ca²⁺ diffusing

• Neurotransmitter moving across synapse

• Na²⁺ binding

In order for a neuron to have an action potential, the neuron must receive more

• excitatory neurotransmitters
• inhibitory neurotransmitters
• agnostic neurotransmitters
• antagonistic neurotransmitters