Nervous & Muscle System BTEC

Which 2 body systems interact and initiate movement?

• muscular and nervous system

• skeletal and muscular system

• respiratory and nervous system

• circulatory and nervous system

This part of the neuron receives chemical messages from the neurotransmitters of other neurons.

• Axon Terminal
• Dendrites
• Myelin Sheath
• Cell Body

Tags

NGSS.MS-LS1-2

The part of the neuron that insulates the axon and increases the speed of the neural message within the neuron.

• Synapse
• Dendrite
• Myelin Sheath
• Axon Terminal Button

This part of the neuron stores then releases neurotransmitters into the synapse.

• Axon 
• Dendrite
• Myelin Sheath
• Axon Terminal

Tags

NGSS.MS-LS1-2

The part of the neuron where action potentials take place.

• Axon Terminal Button
• Myelin Sheath
• Dendrite
• Axon

The correct direction of the neural impulse within one neuron.

• Axon Terminal to Dendrite
• Dendrite to Axon Terminal
• Cell Body to Axon
• Axon Terminal to Cell Body

Which ions are involved in an action potential?

• Na; Cl
• Na; K
• K; Cl
• Na; Ca

What is the normal resting potential of a neuron cell membrane?

• +40mV
• -30mV
• +55mV
• -70mV

Which is the correct order of events in depolarisation then repolarisation? 

• Sodium channels close, potassium channels open
• Sodium channels open, potassium channels open, 
• Sodium channels open, potassium channels close
• Potassium channels open, sodium channels open

At which point on the diagram does depolarisation of the axon occur? 

• A
• B
• C
• D