3.5.3 Eye & Ear FMQuiz Homework Solution
Q. What is the function of the semi-circular canals?
A. Balance
Q. What is the function of the cochlea?
A. Hearing
Q. In which part of the eye are nerve impulses
generated?
A. Retina
Q. Suggest one way by which the ear may be
protected.
A. Skull / bone; Wax; Wear ear protection; Avoid
noisy environments
Q. What is connected to the middle ear by the
Eustachian tube?
A. Throat
Q. The hammer (malleus) is a very small bone
located in the ...
A. Ear
Q. What surrounds the bones in the middle ear?
A. Air
Q. Name two sense organs, other than the ear and
the eye, in the human body.
A. Skin; Tongue; Nose
Q. Which is present in the middle ear, gas or liquid?
A. Gas
Q. In which part of the eye would you find rods and
cones?
A. Retina
Q. What is the function of the lens of the eye?
A. To focus light onto the retina
Q. What is the function of the retina of the eye?
A. To convert light into nerve impulses; Image
forms on it
Q. What is the function of the Eustachian tube?
A. To equalise pressure on the eardrum
Q. TRUE or FALSE. The semi-circular canals in the
ear are involved in balance.
A. TRUE
Q. Outline the role of the suspensory ligaments in
vision.
A. Holds lens in place; Changes shape of lens
Q. Name the coloured part of the eye.
A. Iris
Q. Outline the role of the cones in vision.
A. Detect colour
Q. What is the function of the pupil in the eye?
A. To allow light in
Q. Outline the role of the optic nerve in vision.
A. Brings impulses from retina; Brings impulse to
brain
Q. Name the type of chemical that carries
messages between two neurons.
A. Neurotransmitter
Q. Outline the role of the brain in vision.
A. Interprets information received from retina
Q. Explain how the iris works.
A. Muscular contraction in response to light
intensity, pupil size changes, allows more or less
light in
Q. Suggest a reason why two eyes are better than
one.
A. Increased visual field; To judge distance (depth);
3D vision
Q. In which part of the ear are nerve impulses
generated?
A. Cochlea or semi-circular canals
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