Understanding Neurons and Nervous System

Which part of the neuron is responsible for receiving signals from other neurons?

• Axon

• Dendrite

• Soma

• Myelin sheath

What is the primary function of the axon in a neuron?

• To receive signals

• To transmit signals away from the cell body

• To process information

• To insulate the neuron

Which type of neuron is responsible for carrying information from the sensory receptors to the central nervous system?

• Motor neurons

• Interneurons

• Sensory neurons

• Glial cells

The central nervous system (CNS) is composed of which two main structures?

• Brain and spinal cord

• Brain and peripheral nerves

• Spinal cord and peripheral nerves

• Brain and autonomic nervous system

Which neurotransmitter is primarily associated with the 'fight or flight' response?

• Dopamine

• Serotonin

• Norepinephrine

• Acetylcholine

What is the role of myelin sheath in neural communication?

• To slow down signal transmission

• To protect the neuron from damage

• To speed up signal transmission

• To produce neurotransmitters

Which division of the nervous system is responsible for voluntary movements?

• Autonomic nervous system

• Somatic nervous system

• Sympathetic nervous system

• Parasympathetic nervous system

Which of the following is a function of the parasympathetic nervous system?

• Increasing heart rate

• Dilating pupils

• Stimulating digestion

• Inhibiting salivation

What is the synaptic cleft?

• The gap between the axon terminal and the dendrite of another neuron

• The part of the neuron that contains the nucleus

• The protective covering of the axon

• The site where neurotransmitters are produced

Which neurotransmitter is most closely associated with mood regulation?

• GABA

• Dopamine

• Serotonin

• Glutamate