The Eye Flashcards
the tough outer coat of the eye is called the…
finish the sentence
sclera
the sclera is the ____ part of the eye.
fill in the blank
white
the clear ‘window’ at the front of the eye is called the…
finish the sentence
cornea
behind the cornea is the coloured ring of tissue called the…
finish the sentence
iris
the hole in the middle of the eye is called the…
finish the sentence
pupil
the pupil lets light into the eye and is black because…
finish the sentence
there is no light escaping from the inside
under the sclera is a dark layer called the…
choroid
the choroid is dark because of…
finish the sentence
its pigment cells and red blood vessels.
the choroid’s pigment stops…
finish the sentence
light from being reflected inside the eye
the layer of the back of the eye is called the…
finish the sentence
retina
the retina is where…
finish the sentece
the light energy is converted to nerve impulses
the retina has receptor cells called…
finish the sentence
rods and cones
what do they do?
rods and cones…
finish the sentence
react to light and make impulses in the sensory neurones that pass the impulses to the brain through the optic nerve
rods don’t ‘see’ ________ well.
fill in the blank
rods don’t ‘see’ colours well.
rods work well in ____ light.
fill in the blank
rods work well in dim light.
