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WorksheetsThe Brain and Eye
Total questions: 25
Worksheet time: 13mins
To focus on a near object
the ciliary muscles contract
the suspensory ligaments loosen
the ciliary muscles relax
the suspensory ligaments are pulled tight
To focus on a distant object:
the ciliary muscles relax
the ciliary muscles contract
the suspensory ligaments are pulled tight
the suspensory ligaments loosen
The lens is then thicker and refracts light rays strongly,
to focus on a near object
to focus on a distant object
What does the optic nerve do?
transmits electrical impulses from retina to brain
receives light and sends it to brain
helps the eye focus
transmits light rays to retina
What does the iris do?
transmits light rays to retina
sends messages to the brain
helps the eye focus
regulates how much light enters the eye
What does the sclera do?
protects the eye
allows light to enter eye
helps the eye focus
transmits light rays to retina
Myopia is a common eye defect in which
the image focuses on the retina
the image focuses before it reaches the retina
the image focuses after is reaches the retina
Myopia can be corrected by using a concave lens.
This shortens the focal length of the defective lens
This increases the focal length of the defective lens.
The lens of your eye is convex. Because of this, what happens to light as it passes through the lens?
The light is absorbed.
The light is reflected
The light is refracted
The term accommodation refers to
the ability of the eye to focus on near and distant objects
the ability of the eye to see in colour
the ability of the eye to change the amount of light that enters the eye
The part of the brain mostly concerned with consciousness, intelligence, memory and language is called the ..
medulla
cerebellum
cerebral cortex
Which of the following activities does the cerebellum control?
Memory
Coordination of muscular activity
Language
Unconscious activities
Which part of the brain controls unconscious activities?
Cerebral cortex
Medulla
Cerebellum
What is included in the central nervous system (CNS)?
Spinal cord and all neurones in the body
Brain and all neurones in the body
Brain and spinal cord
How have the different areas of the brain been mapped?
Studying patients with brain damage
Studying patients with brain damage, electrical stimulation and MRI scans
Only by MRI scans
What three parts are contained in the brain?
Alveoli, cerebellum and medulla
Cerebral cortex, gall bladder and medulla
Cerebral cortex, cerebellum and medulla
This study method may result in infection and brain damage. But benefits include direct feedback from the patient and clear linkage between regions and functions.
Electrical Stimulation
CAT scan
MRI Scan
How do the different muscles in our eyes help us focus light clearly?
The muscles alter the size of the iris
The muscles control the images sent to the optic nerve
The muscles tighten or loosen depending on if the lens need to be thickened or made thinner
What type of common eye defect can be corrected using a convex lens?
Myopia
Hyperopia
Astigmatism
Which label is indicating the suspensory ligaments?
A
B
C
M
Which label is indicating the retina?
M
G
H
I
Which label is indicating the ciliary muscles?
A
B
C
D
Which label is indicating the pupil?
A
B
C
D
Which label is indicating the sclera?
M
G
H
I
Which label is indicating the lens?
E
F
G
H
