The nervous system enables humans to react to their surroundings and to coordinate their behaviour. It comprises millions of neurones and uses electrical impulses to communicate very quickly.
What are three examples of conditions controlled by homeostasis in the body?
Blood glucose concentration, body temperature and water levels
Blood glucose, body temperature and nervous responses
Body temperature, nervous and chemical responses
What is included in the central nervous system (CNS)?
Spinal cord and all neurones in the body
Brain and all neurones in the body
Brain and spinal cord
What is the generalised order during a nervous response?
Receptor → stimulus → coordinator → effector → response
Response → receptor → coordinator → effector → stimulus
Stimulus → receptor → coordinator → effector → response
Name the three different types of neurone
Sensory, generalised and motor neurones
Sensory, relay and motor neurones
Sensory, relay and effector neurones
What moves across the synapse?
Electrical impulse and a chemical messenger
What do receptors in the eye detect?
What are effectors?
Muscles and glands
Muscles and nerves
What insulates some axons?
What organ does a reflex arc miss out?
How do neurotransmitters move across a synapse?