BIOL 133 – Lab UPDATED ACTUAL Questions and CORRECT Answers
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Course
BIOL 133
Institution
BIOL 133
BIOL 133 – Lab UPDATED ACTUAL
Questions and CORRECT Answers
What is the function of the sclera - CORRECT ANSWER - protects and gives shape to
eye, provides anchoring site for extrinsic eye muscles
what is the function of the cornea - CORRECT ANSWER - aids in light
refraction/focusing, and...
BIOL 133 – Lab UPDATED ACTUAL
Questions and CORRECT Answers
What is the function of the sclera - CORRECT ANSWER - protects and gives shape to
eye, provides anchoring site for extrinsic eye muscles
what is the function of the cornea - CORRECT ANSWER - aids in light
refraction/focusing, and protects eye from abrasion
what is the fucntion f the choroid - CORRECT ANSWER - absorbs excess light, and
forms ciliary body
what is the function of the pupil - CORRECT ANSWER - wher light enters eyeball
what is the function of the iris - CORRECT ANSWER - regulates diamete of the pupil
what is the function of the lens - CORRECT ANSWER - focuses light on retina, and
chages the shape of the lens (accomadation)
what is the function of the aqueous humour - CORRECT ANSWER - supply nutrients and
oxyegn to lens and cornea
what is the function of the vitreous humour - CORRECT ANSWER - transmits kight and
supports the lens
what is the function of the retina - CORRECT ANSWER - contain rods (dim light) and
cones (bright light) for phototransduction
what is visual acuity - CORRECT ANSWER - ability to see clearly/sharply
, what is near point of accomadation - CORRECT ANSWER - lens changing shape to
accomadate focusing
what are the structures of external ear - CORRECT ANSWER - auricle/pinna, external
auditory canal, tympanic membrane
what is the function of the pinna - CORRECT ANSWER - direct sound waves into canal
what is the fucntion of the tympanic membrane - CORRECT ANSWER - transfer sound
energy to middle ear bones to make them vibrate
what structures are part of the middle ear - CORRECT ANSWER - auditory
ossicles(malleus, incus, stapes), auditory tube
what is the function of the auditory ossicles - CORRECT ANSWER - transfer and amplify
sound
what is the function of the auditory tube - CORRECT ANSWER - equalizes pressure
what are the structures associated with the inner ear - CORRECT ANSWER - bony
labyrinth (semicircular canalas, vesitibule, cochlea), utricle, saccule
what is the function of the vestibule - CORRECT ANSWER - detect movement and
orientation of head
what is the function of the semicircular canals - CORRECT ANSWER - respons to angular
movement of head and acceleration
what is the function of the cochlea - CORRECT ANSWER - trasduces the mechanical
stimulus into nerve impulse
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