The Nervous System

The brain and spinal cord form the:

• Peripheral nervous system

• Autonomic nervous system

• Central nervous system

• Reflex system

Special cells within sense organs which detect changes in the environment are called:

• sense cells

• motor neurones

• receptor cells

• relay neurones

A neurone that transmits impulses from the receptor to the central nervous system is called a:

• motor neurone

• sensory neurone

• relay neurone

• connector neurone

A connection between neurones is called a

• junction

• myelin sheath

• neurotransmitter

• synapse

A reflex is

• an automatic response

• a late reaction

• a voluntary action

• a flexible movement

A neurone that transmits an impulse from the central nervous system to an effector is

• a sensory neurone

• a motor neurone

• a relay neurone

• a connector neurone

Which can not be described as an effector?

• muscle

• gland

• receptor cell

Which of these is not a reflex action?

• catching a ball

• sneezing

• pupils constricting in bright light

• a knee jerk response

Chemicals which move across a synapse to relay the impulse to the next neurone are known as

• neurotransponders

• neurotransmitters

• neurotransformers

• neurotranslators

The insulating layer around a neurone which increases the speed that impulses can travel along it is called:

• dendrons

• myelin sheath

• cell body

• axon