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Sensory System Anatomy 1st Year 2nd Semester PMU

Description

Sensory systems
Med Student
Quiz by Med Student , updated more than 1 year ago
Med Student
Created by Med Student over 8 years ago
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Resource summary

Question 1

Question
The olfactory nerves take information to the brain bypassing the thalamus.
Answer
  • True
  • False

Question 2

Question
The sense of smell is analyzed in the gyrus postcentralis.
Answer
  • True
  • False

Question 3

Question
The optic nerve carries information from the nasal mucosa to the brain
Answer
  • True
  • False

Question 4

Question
Stratum plexiforme internum of the retina contains the processes of bipolar and ganglionic cells.
Answer
  • True
  • False

Question 5

Question
Eminentia pyramidalis in tympanic cavity contains m.stapedius.
Answer
  • True
  • False

Question 6

Question
The pupil is small if the stellate ganglion is removed from the neck of the first rib.
Answer
  • True
  • False

Question 7

Question
Fovea of the retina contains no blood vessels.
Answer
  • True
  • False

Question 8

Question
Taste cells are continually reproduced and do not diminish much with age.
Answer
  • True
  • False

Question 9

Question
The round window equalizes pressure between the middle ear and inner ear.
Answer
  • True
  • False

Question 10

Question
Olfactory nerve fibres terminate in the trigonum olfactorium.
Answer
  • True
  • False

Question 11

Question
Schlemm’s canal is located in:
Answer
  • lens
  • processus ciliaris
  • sclera
  • iris
  • chorioidea

Question 12

Question
Macula lutea:
Answer
  • is composed mostly of pigment cells
  • contains no neuroepithelial cells
  • is the site of best vision
  • is the blind spot of the eye

Question 13

Question
Which of the following helps maintain proper air pressure in the middle ear?
Answer
  • stapedius muscle
  • Eustachian tube
  • external auditory meatus
  • osseous labyrinth

Question 14

Question
Which of the following muscles does NOT take its origin from the common tendinous ring?
Answer
  • superior rectus
  • inferior rectus
  • lateral rectus
  • medial rectus
  • superior oblique

Question 15

Question
Which of the following muscles is NOT innervated by the oculomotor nerve?
Answer
  • levator palpebrae superioris
  • lateral rectus
  • medial rectus
  • inferior oblique
  • superior rectus

Question 16

Question
Which of the following is true in respect to the ciliary ganglion?
Answer
  • Sympathetic fibers synapse in the ciliary ganglion.
  • Afferent fibers from the iris and cornea pass through the ganglion.
  • The ganglion is located between the optic nerve and medial rectus.
  • Parasympathetic fibers in the ganglion are derived from CN VII.
  • Parasympathetic fibers in the ganglion are distributed to the retina and lens.

Question 17

Question
Which of the following is associated with equilibrium?
Answer
  • vestibular membrane
  • basilar membrane
  • otolithic membrane
  • ciliary processes

Question 18

Question
Which of the following is NOT contained in the tympanic cavity?
Answer
  • auditory ossicles
  • tympanic plexus
  • chorda tympani nerve
  • lesser petrosal nerve
  • stapedius and tensor tympani muscles

Question 19

Question
The portion of the inner ear that detects sounds, is the
Answer
  • semicircular canals
  • osseous labyrinth
  • vestibule
  • cochlea

Question 20

Question
Which of the following is the first to come into contact with light?
Answer
  • rods
  • bipolar neurons
  • cones
  • ganglion cells

Question 21

Question
The maculae can be found in the:
Answer
  • cochlear duct
  • saccule
  • semicircular canals
  • semicirurlar ducts

Question 22

Question
Vitreous humor
Answer
  • is constantly circulated through the posterior cavity.
  • is less viscous than aqueous humor.
  • helps to hold the lens and retina in place.
  • does not contribute to intraocular pressure.
  • does not change the path of incoming light.

Question 23

Question
Which of the following cannot be seen as one looks into the eye through an ophthalmoscope?
Answer
  • macula lutea
  • optic chiasm
  • fovea centralis
  • optic disc.

Question 24

Question
Which one of the following is the correct sequence for the passage of a nerve impulse? 1.Primary visual cortex 2.Optic tract 3.Optic nerve 4.Optic chiasma 5.Visual association area
Answer
  • 3, 4, 2, 1, 5
  • 1, 2, 3, 4, 5
  • 2, 3, 4, 1, 5
  • 5, 1, 2, 4, 3
  • 4, 3, 2, 5, 1

Question 25

Question
The following are true about the iris:
Answer
  • it contains pigmented epithelium on its anterior surface.
  • it contains melanocytes in the stroma that determines the iris colour.
  • its colour is determined by sympathetic innervations.
  • the dilator muscle is innervated by the sympathetic system
  • the constrictor muscle is innervated by the Parasympathetic system.

Question 26

Question
The tympanic cavity (middle ear)
Answer
  • has the auditory (Eustachian) tube opening on to its anterior wall
  • is about 1.5 cm from its lateral to its medial wall
  • has the facial nerve running in the upper edge of its medial wall
  • is lined by stratified squamous epithelium
  • is related through its roof to the temporal lobe of the cerebral hemisphere

Question 27

Question
The following structures are associated with the auditory pathway from the internal ear to the cerebral cortex
Answer
  • the cochlear nuclei in the hindbrain
  • the medial geniculate body
  • the lateral lemniscus
  • the inferior temporal gyrus
  • the anterior limb of the internal capsule

Question 28

Question
The optic chiasm
Answer
  • is anterior to the stalk of the hypophysis cerebri
  • is lateral to the internal carotid artery
  • contains fibers from the bipolar neuroses of the retina
  • contains fibers which end in the lateral geniculate body
  • contains crossed fibers associated with the nasal fields of vision

Question 29

Question
An optic tract
Answer
  • contains fibers whose cell bodies are in the retina
  • contains fibers from the medial half of each retina
  • contains fibers all of which end in the lateral geniculate body
  • contains fibers which form the inferior brachium
  • contains fibers which form the afferent pathway of the light reflex

Question 30

Question
The right visual cortex
Answer
  • lies on either side of the edges of the calcarine sulcus.
  • receives the termination of fibers whose cell bodies are in the lateral geniculate body.
  • has a very large area for the macula in its anterior part.
  • receives impulses originating from stimuli from the right halves of both visual fields.
  • receives impulses from the right lower quadrants of both retinae.

Question 31

Question
The following structures are associated with the pathway of proprioception from the periphery to the cerebral cortex
Answer
  • the posterior root ganglion
  • lamellated (Pacinian) corpuscles
  • the parietal lobe of the cerebral hemisphere
  • the genu of the internal capsule
  • the medial lemniscus

Question 32

Question
The mastoid antrum
Answer
  • has the posterior semicircular canal on its medial side.
  • has its aditus on its lateral wall.
  • in the infant is separated from the surface of the skull by bone 6 mm thick.
  • is related posteriorly to the cerebellum.
  • is posterolateral to the facial nerve.

Question 33

Question
Parasympathetic nerves in the thorax
Answer
  • cause contraction of the muscle in the lung
  • supply sensory fibres to the lung
  • are secretomotor to the oesophagus
  • cause the longitudinal muscle of the oesophagus to relax
  • supply sensory fibres to the pericardium.

Question 34

Question
Middle ear infection may follow a throat infection because:
Answer
  • A) the auditory (Eustachian) tube opens into the base of the inner ear
  • B) the pharyngeal (throat) mucosa is continuous with the mucosa of the middle ear
  • C) the sphenoid sinus opens into the tympanic cavity of the middle ear
  • D) the vestibulocochlear nerve passes through the tympanic cavity
  • E) answers A and D.

Question 35

Question
The region on the retina that produces the sharpest vision is called the [blank_start]fovea centralis[blank_end]
Answer
  • fovea centralis

Question 36

Question
The [blank_start]conjunctiva[blank_end] is a membrane covering the anterior portion of the eyeball except for the cornea.
Answer
  • conjunctiva

Question 37

Question
Most olfactory receptors are located on the [blank_start]superior[blank_end] surface of the nasal cavity.
Answer
  • superior

Question 38

Question
The ciliary muscle is supplied by the [blank_start]occulomotor nerve[blank_end]
Answer
  • occulomotor nerve

Question 39

Question
The outer covering of the eye is called the [blank_start]sclera[blank_end]
Answer
  • sclera

Question 40

Question
Blind spot of the eye is known as [blank_start]Optic disc[blank_end]
Answer
  • Optic disc

Question 41

Question
The stapes sends its vibrations to the [blank_start]oval window[blank_end]
Answer
  • oval window

Question 42

Question
The membranous labyrinth contains [blank_start]endolymph[blank_end] fluid.
Answer
  • endolymph

Question 43

Question
Which of the following A to F supplies the structures 1 to 6? A. sphenopalatine ganglion [blank_start]5[blank_end] B. ciliary ganglion [blank_start]1[blank_end],[blank_start]4[blank_end] C. optic ganglion [blank_start]2[blank_end] D. superior cervical ganglion [blank_start]none[blank_end] E. submandibular ganglion [blank_start]3[blank_end] F. none of these [blank_start]6[blank_end] 1. ciliary muscle 2. parotid gland 3. sublingual gland 4. sphincter pupillae 5. lacrimal gland 6. Ievator palpebrae superioris muscle
Answer
  • 5
  • none
  • 1
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  • 6
  • 1
  • none
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  • none
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  • none
  • 1
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  • 5

Question 44

Question
Which of the following A to E supplies the structures 1 to 13? (Note: ltems A through E may he used more than once.) A. gustatory cells [blank_start]1[blank_end], [blank_start]7[blank_end] B. macula lutea [blank_start]12[blank_end] C. crista ampullaris [blank_start]4[blank_end], [blank_start]9[blank_end], [blank_start]13[blank_end] D. macula [blank_start]2[blank_end], [blank_start]3[blank_end]. [blank_start]5[blank_end], [blank_start]6[blank_end] E. Spinal Organ (organ of corti) [blank_start]8[blank_end], [blank_start]10[blank_end], [blank_start]11[blank_end] 1. a group of hair cells associated with taste. 2. the gelatinous membrane associated with this group of hair cells contains crystals of calcium carbonate. 3. a group of hair cells located in the saccule. 4. a group of hair cells associated with a cupola 5. the sense organ of static equilibrium. 6. a group of hair cells located in the utricle. 7. hair cells located on the vallate and fungiform papillae. 8. a group of hair cells associated with the tectorial membrane. 9. the sense organ of dynamic (angular) equilibrium. 10. a group of hair cells located in the cochlea duct. 11. the sense organ of hearing. 12. a yellowish group of cells surrounding the fovea centralism 13. 8 group of hair cells located in the ampulla.
Answer
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Question 45

Question
Which of the following A to D supplies the structures 1 to 9? (Note: Items A through D may he used more than once.) A. ganglion cells [blank_start]1[blank_end], [blank_start]4[blank_end], [blank_start]7[blank_end] B. bipolar cells [blank_start]8[blank_end] C. both A and B [blank_start]1[blank_end], [blank_start]4[blank_end], [blank_start]7[blank_end], [blank_start]8[blank_end] D. neither A nor B [blank_start]2[blank_end], [blank_start]3[blank_end], [blank_start]5[blank_end], [blank_start]6[blank_end], [blank_start]9[blank_end] 1. contact the vitreous humor. 2. contain the purple pigment known as rhodopsin. 3. modified forebrain cells 4. axons of these cells form the optic nerve. 5. contact the choroid layer. 6. cells contain melanin. 7. cells are multipolar neurons. 8. these cells synapse with ganglion cells. 9. these cells provide daylight vision.
Answer
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Question 46

Question
Match the type of fluid (endolymph or perilymph) that is found within the cavities or spaces of the appropriate structures. Items A and B may be used more than once. A. perilymph [blank_start]1[blank_end], [blank_start]5[blank_end], [blank_start]6[blank_end], [blank_start]7[blank_end] B. endolymph [blank_start]2[blank_end], [blank_start]3[blank_end], [blank_start]4[blank_end], [blank_start]8[blank_end] 1. scala vestibuli. 2. cochlear duct. 3. semicircular ducts. 4. utricle. 5. scala tympani. 6. vestibule. 7. semicircular canals. 8. saccule.
Answer
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