Nervous System Quiz (G)

Which part of the neuron is responsible for transmitting electrical impulses away from the cell body?

• Dendrites

• Axon

• Synapse

• Nucleus

What is the role of neurotransmitters in the nervous system?

• Carrying electrical signals

• Sending chemical signals across synapses

• Storing genetic information

• Speeding up the transmission of impulses

Which type of neuron is responsible for detecting stimuli from the environment?

• Motor neuron

• Sensory neuron

• Interneuron

• Reflex neuron

How does the nervous system interact with the muscular system?

• The nervous system directly moves muscles without signals

• Sensory neurons contract muscles on their own

• Motor neurons send signals to muscles, causing movement

• The spinal cord stores all movement signals permanently

What would happen if the myelin sheath of a neuron were damaged?

• The neuron would send signals faster

• The neuron would be unable to regenerate

• The signal transmission would slow down or stop

• The brain would take control of all impulses

What is the main function of the nervous system?

• Producing hormones

• Breaking down food

• Sending and receiving messages

• Pumping blood

Which type of neuron connects sensory and motor neurons?

• Sensory neuron

• Motor neuron

• Interneuron

• Reflex neuron

The gap between two neurons where signals are transmitted is called the:

• Axon

• Dendrite

• Synapse

• Myelin sheath

What is the function of the myelin sheath?

• To slow down nerve impulses

• To protect the neuron

• To speed up electrical impulses

• To store neurotransmitters

The peripheral nervous system consists of:

• The brain and spinal cord

• The cerebrum and cerebellum

• Sensory and motor neurons

• Reflex actions only