3.2 Neurons and the Nervous System

Which part of the neuron is responsible for transmitting signals to other neurons or muscles?

• Soma

• Dendrites

• Axon terminals

• Myelin sheath

What is the role of the myelin sheath in a neuron?

• To receive signals

• To transmit signals

• To insulate the axon and speed up signal transmission

• To connect neurons to blood vessels

What is the main purpose of the soma in a neuron?

• To transmit signals

• To receive signals

• To house the nucleus and maintain cell function

• To insulate the axon

What is the role of the myelin sheath in a neuron?

• Holds the nucleus of the cell

• Protects the axon

• Sends information to other neurons

• Receives messages from other neurons

What is the primary role of dendrites?

• Send information to other neurons

• Receive messages from other neurons

• Protect the axon

• Hold the nucleus of the cell

Which of the following is NOT related to an action potential?

• Electrical impulse

• Neural impulse

• Chemical gradient

• Signal within cell

What is the role of the receiving neuron in neural communication?

• To send neurotransmitters

• To receive neurotransmitters

• To block neurotransmitters

• To destroy neurotransmitters

Which part of the neuron communication process involves chemicals?

• Sending neuron

• Neurotransmitter

• Receiving neuron

• Electrical impulse

What analogy is used to describe neural communication?

• A handshake

• A phone call

• Throwing a ball

• Sending a letter

What is the main function of the synaptic cleft (synaptic gap)?

• To separate neurons

• To allow neurotransmitter diffusion

• To block neurotransmitter release

• To destroy neurotransmitters