Exploring the Nervous System

What is the main function of a neuron?

• To transport oxygen in the blood

• To transmit electrical signals in the body

• To produce hormones

• To digest food

Which part of the neuron receives signals from other neurons?

• Axon

• Dendrite

• Myelin sheath

• Synapse

What is the function of the myelin sheath?

• To connect neurons to muscles

• To speed up the transmission of nerve impulses

• To store neurotransmitters

• To produce energy for the neuron

Which two main parts make up the central nervous system?

• Brain and spinal cord

• Heart and lungs

• Kidneys and liver

• Muscles and bones

What is the main role of the peripheral nervous system?

• To control digestion

• To connect the central nervous system to the rest of the body

• To produce red blood cells

• To filter waste from the blood

Which of the following is NOT a part of a neuron?

• Axon

• Dendrite

• Synapse

• Alveolus

What is a reflex arc?

• A voluntary movement controlled by the brain

• An automatic response to a stimulus

• A type of muscle contraction

• A hormone release pathway

Which part of the brain is responsible for balance and coordination?

• Cerebrum

• Cerebellum

• Medulla oblongata

• Hypothalamus

What is the main function of sensory neurones?

• To carry impulses from the CNS to muscles

• To carry impulses from sense organs to the CNS

• To produce hormones

• To digest food

Which of the following best describes the function of motor neurones?

• They detect changes in the environment

• They carry impulses from the CNS to effectors (muscles or glands)

• They store memories

• They produce myelin