223 Flashcards by Love Class

Focusing an object onto the retina is the responsibility of the
Cornea
Pupil
Iris
Lens
Vitreous body

Lens

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all of the following structures are found in the outer ear EXCEPT the

auricle
external auditory canal
tympanic membrane
Cochlea

Cochlea

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Taste buds are located primarily on the
upper palate
tongue
gums
uvula

tongue

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The ear is divided into which three anatomical parts?
External ear, tympanic membrane, inner ear
External ear, middle ear, cochlea
External ear, middle ear, inner ear
External auditory meatus, middle ear. inner ear

External ear, middle ear, inner ear

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The primary refractive index (media) of the eye is the

Sclera
Cornea
Pupil
Lens
retina

Cornea

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All of the following are modalities of tastes EXCEPT
Sweet
Sour
Bitter
Umami
Bland

Bland

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Olfaction is dependent on _
cells.
optic
auditory
olfactory
odiferous

olfactory

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Taste to the anterior 2/3 of the tongue is mediated by the
Trigeminal nerve
Facial nerve
Glossopharyngeal nerve
Vagus nerve
None of the above

Facial nerve

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Cones are most dense in the
Optic nerve
Fovea
Peripheral retina
Lens
Ciliary body

Fovea

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Focusing an object onto the retina is the responsibility of the

Cornea
Pupil
Iris
Lens
Vitreous body

Lens

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Olfaction is dependent on .

optic
auditory
olfactory
oneous

olfactory

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External ear, middle ear, inner ear

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Cones are most dense in the
Optic nerve
Fovea
Peripheral retina
Lens
Ciliary body

Fovea

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Which of the following cells give rise to the optic nerve?

Horizontal cells
Purkinje cells
Purkinje fibers
Ganglion cells
Bipolar cells

Ganglion cells

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The primary refractive index (media) of the eye is the
Sclera
cornea
Pupil
Lens
renn.

cornea

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Focusing an object onto the retina is the responsibility of the
Cornea
Pupil
Iris
Lens
Vitreous body

Lens

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Taste buds are located primarily on the
upper palate
tongue
gums
uvula

tongue

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All of the following are types of tastes EXCEPT
sour
sweet
bland
umami

Bland

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Cones are most dense in the
Optic nerve
Fovea
Peripheral retina
lens
Ciliary body

Fovea

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Which of the following structure is involved in tear production?
Eyelids
Lacrimal gland
Ciliary body
Choroid
None of the above

Lacrimal gland

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Which of the following structure is involved in regulating the amount of light entering the eye?
Cornea
Lenses
Iris
Retina
None of the above

Iris

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All of the following are modalities of tastes EXCEPT
Sweet
Sour
Umami
Bland

Bland

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A visual acuity of 20/20 denotes

“normal” vision
The image falls on the retina
Refractive correction is not indicated
All of the above
None of the above

All of the above

Anatomically, all of the following structures are found in the outer ear EXCEPT the

auricle
external auditory canal
tympanic membrane
cochlea

cochlea

Cones are most dense in the Optic nerve Fovea Peripheral retina Lens Ciliary body

Fovea

The primary refractive index (media) of the eye is the Sclera Cornea Pupil Lens Retina

Cornea

Focusing an object onto the retina is the responsibility of the Cornea Pupil Iris Lens Vitreous body

Lens

Which of the following cells give rise to the optic nerve? Horizontal cells Purkinje cells Purkinje fibers Ganglion cells Bipolar cells

Ganglion cells

Which of the following ossicles are found in the middle ear? Omalleus O incus O stapes all of the above none of the above

All of the above

All of the following are found in the middle ear EXCEPT Stapedius muscle Tensor tympani muscle External auditory canal Stapes Ossicles

External auditory canal

Sensory is the primary function for all of the following nerves EXCEPT the optic nerve vestíbulo cochlear nerve hypoglossal olfactory

hypoglossal

The ossicles connect the tympanic membrane to the round window tympanic membrane to the oval window the oval window to the round window the oval window to the cochlear

tympanic membrane to the oval window

Which of the following statements is most correct for the cones? It is a photoreceptor cells It is located in the retina It is associated with color vision and the sharpness of the image All of the above

All of the above

A 24-year-old male was seen by ophthalmologist. He was given a diagnosis of emmetropia. What type of lens would you prescribes to this patient? Concave lens Convex lens Convex lens with cylinder Glasses are not necessary for this patient

Glasses are not necessary for this patient

The primary refractive media of the eye is the cornea anterior chamber lens vitreous humor

cornea

Cones are most dense on which part of the retina? The blind spot (optic nerve) The fovea The periphery They are evenly distributed over the retina

The fovea

A visual acuity of 20/20 denotes "normal" vision The image falls on the retina Refractive correction is not indicated All of the above None of the above

All of the above

The optic nerve arises from which of the following cells? Rods and cones Bipolar cells Ganglion cells Horizontal cells

Ganglion cells

Which of the following structures regulates the amount of light entering the eye? Lens Iris Cornea Retina

Iris

A 16 year-old boy presents to your office. While involved in a high school wrestling match, he accidentally cut his ear. He complains of pain. Exam shows a 2 cm cut with coagulated blood at the site of the wound. Which of the following structure is most likely injured? © The auricle © The external auditory meatus O The tympanic membrane © The Eustachian tube

The auricle

Anatomically, all of the following structures are found in the outer ear EXCEPT the O auricle O external auditory canal O tympanic membrane O cochlea

cochlea

Which of the following ossicles are found in the inner ear? O malleus O incus O stapes O all of the above none of the above

None of the above

The external auditory canal ends at the O vestibule O utricle O tympanic membrane O ossicles

tympanic membrane

The ossicles connect the tympanic membrane to the round window tympanic membrane to the oval window the oval window to the round window the oval window the cochlea

tympanic membrane to the oval window

Which of the following are functions associated with the ear? Vestibular Audition Balance/equilibrium All of the above Only B & C

All of the above

Receptor cells for audition and balance are located in the ear. O outer O middle O inner O cerebellum

inner

Nicotinic and muscarinic receptors are components of the sympathetic system parasympathetic system central nervous system peripheral nervous system

parasympathetic system

Preganglionic sympathetic fibers originate from T1-T2 of the spinal cord T1-L2 of the spinal cord L1-L4 of the spinal cord S2-S4 of the spinal cord

T1-L2 of the spinal cord

All of the following cranial nerves convey parasympathetic fibers to effectors EXCEPT oculomotor facial glossopharyngeal hypoglossal

hypoglossal

A student is about to take a final exam. One hour prior to the exam, the student experiences jitters, an elevated heart rate, an increase in blood pressure, increased respiration, cold sweats, and cold feet & hands. The symptoms are the result of sympathetic activation decreased levels of epinephrine in the blood increased parasympathetic activity decreased sympathetic activity only A & C are correct

sympathetic activation

All of the following are examples of parasympathetic discharge EXCEPT contraction of the urinary bladder relaxation of the sphincters of the digestive tract increased salivation increased heart rate

Increased heart rate

In a "fight-or-flight" situation, which of the following physiological changes may be experienced? dilation of the respiratory airways increased sweating dilatation of peripheral blood vessels and in skeletal muscles all of the above

All of the above

Alpha and beta receptors are components of the cholinergic system adrenergic system central nervous system peripheral nervous system

adrenergic system

Neuroendocrine cells in the adrenal gland Oare located in the adrenal cortex O release acetylcholine into blood capillaries O release epinephrine and norepinephrine into blood capillaries O have no endocrine function O do not release neurotransmitters (neuroendocrine chemicals) when stimulated

release epinephrine and norepinephrine into blood capillaries

Muscarinic receptors are found at myoneural and neuroglandular junctions and are activated by acetylcholine release are located on the surface of ganglion cells produce an excitatory or inhibitory response are activated by norepinephrine

are activated by acetylcholine release

For the sympathetic division of the ANS, the neurotransmitter released at the neuroeffector junction is acetylcholine norepinephrine epinephrine dopamine dobutamine

norepinephrine