Nervous System and Homeostasis Quiz

Which part of the nervous system controls reflex actions?

• Cerebrum

• Brainstem

• Spinal cord

• Cerebellum

What is the main function of sensory neurones?

• To carry signals from receptors to the CNS

• To carry signals from the CNS to effectors

• To store information

• To produce hormones

What is a reflex action?

• A conscious movement controlled by the brain

• A quick, automatic response to a stimulus

• A thought process to solve a problem

• A voluntary muscle movement

Which of the following is an example of a reflex action?

• Writing an essay

• Sneezing when dust enters the nose

• Playing a musical instrument

• Solving a math problem

What is the role of the relay neurone in a reflex arc?

• To detect stimuli

• To transmit signals within the spinal cord

• To carry signals to muscles

• To release hormones

In a negative feedback loop, what happens when body temperature gets too high?

• The body releases sweat to cool down

• The blood vessels constrict

• Shivering increases heat production

• The body produces more heat

Which of these organs is responsible for detecting a change in temperature?

• Brain

• Lungs

• Skin

• Kidney

What is homeostasis?

• The transport of nutrients around the body

• The maintenance of a constant internal environment

• The production of energy in cells

• The breakdown of waste products

Which hormone helps to lower blood glucose levels?

• Adrenaline

• Glucagon

• Insulin

• Oestrogen

What is the role of the motor neurone in the nervous system?

• To detect changes in the environment

• To carry signals from the CNS to effectors

• To process information in the brain

• To release neurotransmitters