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WorksheetsSense Organs: Emphasis Eye and Ear
Total questions: 43
Worksheet time: 31mins
What are the sensory cells or nerve endings for the eyes?
olfactory cells
Organs of Corti
rods and cones
proprioceptors
What are the sensory cells or nerve endings of the tongue?
(a)
What are the sensory cells or nerve endings of the nose?
Olfactory cells
Organs of Corti
Taste buds
rods and cones
What are the sensory cells or nerve endings of the ears?
Olfactory cells
Organs of Corti
Proprioceptors
Rods and cones
The eyes are sensitive to the stimulus of (a) ?
Sensory nerve endings in the skin are sensitive to? (Type one of the 4)
(a)
Sensory (a) is when a stimulus is applied continuously or frequently to a sense organ, and its effect becomes reduced over time.
The outer most layer of the eye, which is tough, white, and protects the delicate parts inside the eye?
choroid
retina
sclera
The eyes are situated in sockets in the skull which are one protection for the eye, these sockets are called (a) ?
The thin, black middle layer of the eye containing the main arteries and veins of the eye, and it prevents reflection of light within the eyeball.
Choroid
Retina
Sclera
The innermost layer of the wall of the eye containing light sensitive cells.
Choroid
Retina
Sclera
The transparent disc in the eye which adjusts for fine focusing of light rays.
Cornea
Lens
optic disc
Conjunctiva
The colored part of the eye which dilates and constricts to regulate the amount of light entering the eye by altering the size of the pupil.
(a)
Tears help prevent eye infection because they contain an antiseptic (enzyme) which destroys bacteria. It is called?
(a)
The eye condition where the lens becomes cloudy (opaque) making the center of the eye look milky white and vision is blurred or lost completely in the affected eye.
Conjunctivitis
Glaucoma
Cataract
Detached retina
The eye condition where too much fluid (aqueous humour) within the eyeball causes pressure on the optic nerve. The result is eye pain and blurred vision.
Conjunctivitis
Glaucoma
Cataract
Detached retina
The transparent watery fluid in the front part of the eye filling the space in front of the lens.
Aqueous Humour
Vitreous Humour
Cornea
Lens
The transparent jelly which fills the large space in the eyeball behind the lens.
Aqueous Humour
Vitreous Humour
Cornea
Lens
The transparent bulge in the front of the eye allowing light rays the enter the eye where the greatest amount of refraction (bending of light rays) takes place.
Aqueous Humour
Vitreous Humour
Cornea
Lens
The function of the eye is to receive light rays and convert them into nerve impulses which are sent to the brain by the _______ _______ where they are interpreted as 'seeing'.
(a)
With accommodation, focusing of the lens, on distant objects the lens must:
thicken and become more convex for greater bending of light rays.
flatten so that there is less bending of the rays.
remain neural.
The light sensitive cells in the retina which are sensitive to color and only work in bright light are the:
(a)
The light sensitive cells in the retina that are not sensitive to color, and they only work in dim light are the:
(a)
In the dark, rods only function when a substance called _______ ________ is present in them.
(a)
People who are long-sighted can see things in the distance clearly but everything close to the eyes appears blurred. This is called:
Myopia
Hypermetropia
Presbyopia
Astigmatism
People who are short-sighted can only see clearly things which are close to the eyes while everything else is blurred have:
Myopia
Hypermetropia
Presbyopia
Astigmatism
___________ is the defect of the eye that makes things look crooked or out of shape because the cornea is out of shape.
Myopia
Hypermetropia
Presbyopia
Astigmatism
Long-sightedness that occurs as people become older and the lens hardens.
Myopia
Hypermetropia
Presbyopia
Astigmatism
Which lens corrects myopia diverging light rays from a distant object: convex or concave?
(a)
Which is the tube coiled like a snail's shell that contains sensory cells which convert vibrations into impulses?
Semicircular canals
Ossicles
Cochlea
Ampulla
The part of the outer ear which collects sound waves is?
Ear canal
Ear drum
Pinna
Ossicles
The possession of two ears, situated one on each side of the head, enables us to know from which (a) sounds are coming.
What part of the inner ear is able to detect movements of the head and send this information through nerve impulses to the brain which then sends messages for muscles to move to bring about balance.
Semi-circular canals
Cochlea
Ossicles
Eustachian tube
Swallowing, yawning, or sucking a sweet help to equalize pressure in the ear by opening the:
(a)
The ear canal directs sound wave on to the __________ causing it to vibrate.
ear drum
ossicles
ampulla
cochlea
What links the inner ear to the brain carrying impulses from both the cochlea for hearing and from the semi-circular canals for balance?
(a)
Does pitch or loudness depend on the frequency (how fast) the vibrations are?
Pitch
Loudness
Does pitch or loudness depend on the size (energy content) of the vibration?
(a)
A loud sound of how many decibels causes pain?
70 dB
91 dB
120 dB
140 dB
Sound is produced by (a) .
Wearing protective earmuffs and ear plugs can reduce (a) damage
Common colds and similar infections can cause deafness in babies and young children the eustachian tube becomes blocked by (a) interfering with the functioning of the middle ear.
Sound is measured in:
waves
vibrations
wpm
decibels
