Java Games: Flashcards, matching, concentration, and word search.

Nerves (OCR GCSE)

Neurones, the eye and reflexes

AB
StimulusDetected by a receptor
ReceptorDetects a stimulus
NeuroneProper word for a nerve cell
ImpulseElectrical signal carried by a neurone
TransduceChange one form of energy into another
Taste budsDetect chemical
EyesDetect light
EarsDetect sound
CNSWhere sensory signals are processed
EffectorMuscle or glands
ResponseWhat an effector 'does'
Focus lightWhat the cornea and lens do
Cornea and lensTransparent parts of the eye which focus light
IrisMuscle which controls size of pupil
PupilHole which lets light into the eye
ConeDetects the colour of light
RodDetects light and dark
FoveaWhere cones are most concentrated
Optic nerveCarries nerve impulses from the retina
Blind spotHole in the retina which the nerves pass through to the optic nerve
Close to youWhere objects are if the lens is very fat
Far awayWhere objects are if the lens is very thin
MuscleWhat the iris is made of
Sensory neuroneTakes impulses from a receptor to the CNS
Motor neuroneTakes impulses from the CNS to muscles or glands
ReflexAn automatic (involuntary) response to a stimulus
Reflex arcThe pathway of nervous impulses that make a reflex happen
Rapid responseThe reason reflexes protect the body so well
Spinal cordThe part of the CNS which isn't the brain
Conscious thoughtNot involved in a reflex
Fatty sheathSurrounds the axon of a nerve cell to make it faster
FatWhat the sheath round an axon is made of. It electrically insulates it.
AxonThe long part of a motor neurone which carries impulses.
MiddleWhere the cell body is in a sensory neurone
SynapseA nerve cell junction
ChemicalsWhat carries messages across the gap (synapse) between neurones
DrugsChange the way synapses work, by blocking or exciting them
AlcoholLegal drug that slows synapses down
NicotineLegal drug that stimulates synapses (makes them work too fast
SolventMesses up synapses, found in glue. Abuse of it regularly kills people even on their first go.


(AP) Human Geography Teacher
Lakeville South High School
Lakeville, MN

This activity was created by a Quia Web subscriber.
Learn more about Quia
Create your own activities