Eye Anatomy
The fibrous layer of the eye contains the __________.
a. cornea
b. chorioid coat
c. retina
d. lens
a. cornea
all of the following statements are true of rods except:
a. they are used in dim light
b. they contain a pigment called rhodopsin
c. they are not found in the fovea centralis
d. they are 100 times less sensitive than cones
d. they are 100 times less sensitive than cones
the receptors for taste and smell are classified as ______.
a. mechanocepters
b. chemoceptors
c. nociceptors
d. proprioceptors
b. chemoceptors
the pharyngotympanic tube connects the throat with which part of the ear?
a. outer ear
b. middle ear
c. inner ear
d. cochlear duct
b. middle ear
sound is transmitted from the tympanic membrane to the inner ear by the _________.
a. cochlea
b. ossicles
c. vestibular membrane
d. round window
b. ossicles
All are extrinsic muscles of the eye except:
a. lateral rectus
b. medial rectus
c. superior oblique
d.ciliary muscle
d. ciliary muscle
presbyopia is the ability of the _______.
a. lens to accommodate
b. pupils to constrict
c. cornea to refract light
d. cones to depolorize
a. lens to accommodate
which of the following is not a taste bud classification?
a. sweet
b. sour
c. spicy
d. umami
c. spicy
the bony labyrinth contains:
a. the spiral organs of corti
b. endolymph
c. perilymph
d. both choices a and b are correct
c. perilymph
vibrations of the cochlear duct causes the cilia of the hair cells to bend against which membrane?
a. tympanic
b. vestibular
c. tectorial
d. basilar
c. tectorial
tears drain from the ______ into the nasolacrimal duct.
a. lacrimal gland
b. lacrimal punta
c. lacrimal sac
d. lacrimal canaliculi
c. lacrimal sac
which of the following is true of myopia ?
a. the myopia eye can see far objects clearly
b. the eyeball is too short
c. light rays focus behind the retina
d. concave lenses help correct this condition
d. concave lenses help correct this condition
the sense of smell can __________.
a. elicit an emotional response
b. exhibit adaptation
c. trigger a fight or flight response
d. all of the above
d. all of the above
the spiral organs of corti are found in the _______.
a. vestibule
b. semicircular canals
c. utricle
d. cochlea
d. cochlea
sensorineural deafness results from all the following except:
a. loss of hair cells
b. damage to cochlear nerve
c. destructions of the ossicles
d. damage to the auditory cortex
c. destructions of the ossicles
blood vessels in the eye are found in the ______.
a. cornea
b. choroid coat
c. retina
d. lens
b. choroid coat
which of the following is true of vision?
a. the cornea helps converge light rays onto the retina
b. the lens of the eye will become more convex when focusing on far objects
c. the light entering the eye is focused onto the optic disc
d. the iris helps to focus the lens
a. the cornea helps converge light rays onto the retina
a. V
b. VII
c. IX
d. X
d. X Vagus Nerve
the stapes connects with the inner ear via the _______.
a. basilar membrane
b. tympanic membrance
c. oval window
d. round window
c. oval window
the maculae of the ear ________.
a. respond to dynamic equilibrium
b. contain hair cells
c. are located in the semicircular canals
d. are encased in a gelatinous mass called a cupola
b. contain hair cells
the area where the optic nerve leaves the eye is called the _________.
a. fovea centralis
b. maculae lutea
c. optic disc
d. funds
c. optic disc
which of the following occurs when looking at near objects?
a. the lens flattens
b. the pupils constrict
c. the eyeball diverge
d. the ciliary muscle relaxes
b. the pupils constrict
a. 7-10 days
b. 7-10 weeks
c. 7-10 months
d. 7-10 years
a. 7-10 days
the scala tympani extends from the apex of the cochlea to the _________.
a. scala media
b. scala vestibuli
c. basilar membrance
d. round window
d. round window
vestibular nystagmus occurs when which receptors are stimulated?
a. spiral organs
b. maculae
c. cristae
d. cones
c. cristae