EYES Flashcards
SCLERA
STRONG LAYER THAT MANTAINS THE SHAPE OF THE EYES AND PROTECTS IT
CONJUCTIVA
TRANSPARENT MEMBRANE THAT PROTECTS THE FRONT LAYER OF THE SCLERA
IRIS
THE COLOURED PART OF THE EYE WHICH CONTROLS THE SIZE OF THE PUPIL
PUPIL
OPENING IN THE CENTRE OF THE IRIS WHICH CONTROLS THE QUANTITY OF LIGHT ENTERING THE EYES
CILIARY MUSCLE
MUSCLE THAT CHANGES THE THICKNESS OF THE LENS THROUGH CONTRACTION AND RELAXATIONS
CORNEA
TRANSPARENT LAYER WHICH REFRACTS AND FOCUSES LIGHT ONTO THE RETINA
AQUEOUS HUMOUR
TRANSPARENT FLUID WHICH MAINTAINS THE SHAPE OF THE EYEBALL AND FOCUSES LIGHT INTO THE EYE
EYE LENS
TRANSPARENT AND ELASTIC CONVEX LENS WHICH FOCUSES LIGHT INTO THE EYE
VITREOUS HUMOUR
TRANSPARENT JELLY-LIKE SUBSTANCE WHICH MAINTAINS THE SHAPE OF THE EYEBALL AND FOCUSES LIGHT ONTO THE RETINA
SUSPENSORY LIGAMENTS
STRONG FIBRES WHICH HOLD THE EYE LENS IN ITS POSITION
RETINA
LAYER CONTAINING PHOTORECEPTORS THAT DETECTS LIGHT AND PRODUCE NERVE IMPLUSES
YELLOW SPOT
PART OF THE RETINA THAT IS MOST SENSITIVE TO LIGHT AS IT HAS MORE PHOTORECEPTORS
BLIND SPOT
PART OF RETINA THAT IS NOT SENSITIVE TO LIGHT AS IT HAS NO PHOTORECEPTORS
OPTIC NERVES
NERVE FIBRES WHICH CARRY NERVE IMPULESES FROM THE RETINA TO THE BRAIN TO BE INTERPRETED
CHOROID
BLACK LAYER THT PREVENTS REFLECTION OF LIGHT IN THE EYE AND SUPLIES OXYGEN AND NUTRIENTS TO THE EYE
WHAT IS THE MOST SENSITIVE SOPT ?
YELLOW SPOT
WHAT HAPPENS IF THE OPTIC NERVES IS DAMAGE ?
IT WILL COURSE PERMENENT BLINDNESS
WHICH PART CONTAINS PHOTORECEPTORS
RETINA
WHICH PART SUPPLIES OXYGEN AND NUTRIENTS TO THE EYE?
CHOROID
WHAT IS THE 2 TYPE OF PHOTORECEPTORS
ROD CELL AND CONE CELL
THERE ARE 3 TYPES OF COLOUR IN CONE CELL ..WHAT IS IT ?
RED,BLUE AND GREEN
3 PARTS OF THE EYE
IRIS ,PUPIL AND SCLERA
