Nervous System Quiz

What are the two main parts of the nervous system?

• Central nervous system and peripheral nervous system

• Digestive system and respiratory system

• Skeletal system and muscular system

• Endocrine system and lymphatic system

What is a stimulus?

• A change in the external environment

• A type of nerve cell

• A part of the brain

• A hormone

What is the role of receptors in the nervous system?

• To respond to stimuli

• To produce hormones

• To digest food

• To circulate blood

Which of the following is NOT a characteristic of reflex actions?

• They occur rapidly

• They involve thinking

• They are automatic

• They always occur in the same way

What is a reflex arc?

• A pathway involving sensory, relay, and motor neurons

• A type of muscle contraction

• A part of the brain

• A hormone release mechanism

What is the primary function of a sensory neurone?

• To transmit messages to muscles

• To carry messages from a receptor to the central nervous system

• To connect other neurones

• To release chemicals at synapses

What role does a relay neurone play in the nervous system?

• It releases chemicals at synapses

• It connects sensory neurones to motor neurones

• It transmits messages to effectors

• It carries messages from receptors to the brain

What is the function of a motor neurone?

• To connect sensory neurones

• To carry messages to the central nervous system

• To transmit messages to an effector

• To release chemicals at synapses

What is a synapse?

• A type of motor neurone

• A chemical transmitter

• A tiny gap where two neurones meet

• A part of the spinal cord