Nervous system

What is the main function of the nervous system?

• Circulation

• Digestion

• Coordination and control

• Breathing

What type of cells are responsible for transmitting electrical signals in the nervous system?

• Neurons

• Red blood cells

• Lymphocytes

• Hepatocytes

Answer explanation

What part of the nervous system controls involuntary functions, such as heart rate and digestion?

• Central nervous system

• Peripheral nervous system

• Autonomic nervous system

• Somatic nervous system

Which of the following is not a division of the central nervous system?

• Brain

• Spinal cord

• Spinal nerves

• Cerebellum

What is the chemical used to transmit signals between neurons?

• Insulin

• Adrenaline

• Melatonin

• Neurotransmitter

What is the main function of myelin in neurons?

• Regulate body

• Nourish neurons

• Transmit electrical signals

• Increase the speed of conduction of the signals

Which region of the brain is associated with language, decision making, and rational thought?

• Cerebellum

• Frontal lobe

• Occipital lobe

• Hypothalamus

What part of the nervous system is made up of nerves that connect the central nervous system to the rest of the body?

• Autonomic nervous system

• Peripheral nervous system

• Spinal cord

• Hypothalamus