Nervous System Quiz

What is a stimulus in the context of the nervous system?

• A type of neuron

• A response to an external change

• Any change in the internal or external environment

• A special kind of receptor

What do receptors detect?

• Hormones

• Synapses

• Stimuli

• Neurotransmitters

What is the role of effectors in the nervous system?

• To detect stimuli

• To produce a response to stimuli

• To transmit information using electrical impulses

• To coordinate the response

Which of these are types of effectors (select 2)?

• Muscle Cells

• Glands

• Synapses

• Central nervous system

What does the central nervous system (CNS) consist of?

• The brain and the heart

• The brain and the spinal cord

• The spinal cord and sensory organs

• The sensory organs and motor neurones

What is the connection between two neurones called?

• A receptor

• A synapse

• A neurotransmitter

• An effector

What is the function of neurotransmitters?

• To detect external stimuli

• To contract muscles

• To diffuse across the synapse and trigger a new electrical signal

• To coordinate responses

Name the two main parts of the central nervous system.

• Brain and heart

• Brain and spinal cord

• Spinal cord and sensory organs

• Sensory organs and motor neurones

What is the route taken by the information in a reflex from receptor to effector called?

• Reflex pathway

• Reflex arc

• Reflex route

• Reflex circuit

Where do the neurons in reflex arcs go through?

• Only through the spinal cord

• Only through an unconscious part of the brain

• Through the spinal cord or through an unconscious part of the brain

• Through the conscious part of the brain