WorksheetsThe eye for IGCSE
Total questions: 43
Worksheet time: 43mins
Provide the correct label for A.
Radial muscle
Pupil
Suspensory ligament
Rod
Give the correct label for A.
Conjuctiva
Radial muscle
Retina
Cone
Label A correctly.
Circular muscle
Fovea
Colour
Iris
Radial muscles are one set of muscles involved in the iris reflex. Name the other set.
Circular muscles
Suspensory ligaments
Ciliary muscles
Biceps
State the name of the process of adjusting to light.
Iris reflex
Cornea reflex
Accomodation
Ajudication
'Adapting the eye to see different distances'
accomodation
adjustment
cornification
short sightedness
Ciliary muscles Contract up Close (CCC).
State the process this mnemonic (memory tool) describes.
How the eye sees objects close by.
How the eye sees objectd far away.
How the eye sees everything.
Nothing. Trick question.
Which part of the eye provides a link to the brain?
Cornea
Lens
Conjuctiva
Optic nerve
The eye is part of which section of the nervous system?
Peripheral nervous system
Central nervous system
Rods detect grey, black and white. Cones detect colour. Where are rods and cones?
retina
fovea
iris
sclera
Ciliary muscles Contract up Close, so which image shows accomodation of nearby objects?
A
B
Neither
During accomodation, if ciliary muscles contract up close, what do they do accomodating objects far away?
Also contract
Relax
Why would the pupil get smaller in diameter?
To let in less light.
To let in more light.
To be selective over the wavelength of light that enters.
Circular and radial muscles are responsible for ....
Adjusting to distance.
Accomodation.
Adjusting to light.
In which layer of the eye are the rod and cone cells found?
(a)
Which type of cell is more sensitive to light: rod or cone?
(a)
Specifically where would you find the most cone cells?
(a)
Which of these structures perform refraction?
cornea
lens
pupil
ciliary muscles
What is the name of the hole through which light enters the back of the eye?
(a)
By which structures are the ciliary muscles connected to the lens?
Ciliary ligaments
Suspensory ligaments
Taut ligaments
Sensory ligaments
In front of which part of the eye ball would you find the blind spot?
(a)
What is the tough, white outer layer of the eye called?
Choroid
Retina
Sclera
Cornea
Which type of cell provides colour vision?
(a)
What word describes the shape of a pupil in a dark environment?
(a)
What word describes the shape of the pupil in bright light?
(a)
Name the the type of muscle that is antagonistic to a circular muscle in the iris.
(a)
What is eye accommodation?
The ability to see colors
The ability to change the focal length of the eye to focus on objects at different distances
The ability to see in the dark
The ability to perceive depth
What happens to the lens of the eye when focusing on a nearby object?
The lens becomes thinner
The lens becomes thicker
The lens remains unchanged
The lens becomes flat
#3 Refers to the circular structure that surrounds the pupil and regulates the amount of light entering the eye.
Cornea
Pupil
Retina
Iris
#7 Refers to the part of the eye that carried visual information from the eyeball to the brain
lens
optic nerve
retina
sclera
# 5 refers to the layer of receptor cells at the back of the eye in which the image is focused
Retina
Lens
Optic Nerve
Lens
The white part of the eye made of a tough material
lens
sclera
retina
optic nerve
The colorful part of the eye, controls light going into the pupil
lens
iris
sclera
retina
back of the eye, takes light and changes it to nerve signals
lens
sclera
optic nerve
retina
carries messages from the eye to the brain
lens
vitreous humor
retina
optic nerve
gel substance that gives the eye shape
optic nerve
iris
vitreous humor
retina
Radial muscles are one set of muscles involved in the iris reflex. Name the other set.
Circular muscles
Suspensory ligaments
Ciliary muscles
Biceps
'Adapting the eye to see different distances'
accomodation
adjustment
cornification
short sightedness
Ciliary muscles Contract up Close, so which image shows accomodation of nearby objects?
A
B
Neither
During accomodation, if ciliary muscles contract up close, what do they do accomodating objects far away?
Also contract
Relax
Why would the pupil get smaller in diameter?
To let in less light.
To let in more light.
To be selective over the wavelength of light that enters.
