CDE Anatom ic Sciences

47 Pages·2012·17.85 MB·English

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Anatom ic Sciences
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6.
~:'\M1id1ofthe following represents the secretory Desmosomes function by serving as
. productofthe parafollicularcells ofthethyroid- A a means for communication between ."
gland?
cells.
A Iodine B. a means for attachment of adjacent cells.
. 8. Protease C. anoutletfor secretory products ofacell.
C. Thyroxine D. a bridgefor continuity of cytoplasm
D. Calcitonin between adjacent cells.
E. Thyroglobulin E. a meansby which tonofibrils can pass
from one cell into another.
)2.'.'. Parasympathetic innervation controlling
. salivation originates withwhich ofthe following
aanial nerves?
7.
The growthrate in the cartilage ofthe epiphyseal
A V,VII,IX,X,andXII
plate of a long bone is markedly retarded when
B. V,VII,IX,andX there isa lackof hormone from which of the
C. V,IX,andX
following?
D. VII,IX,andXI
E. VIIandIX A Hypophysis
B. Adrenals
C. Testes
Peripheral (lower motor neuron) lesions of D. Parathyroids
aanial nerveVIIwillcausewhich ofthe E. Islets of Langerhans
following?
A A contralateral paralysis of the facial
musculature
B. An ipsilateral flaccid paralysis of the facial 8.
The dentist incises the mucous membrane of
musculature
C. thefloor ofthe mouth. This incision extends
A contralateral paralysis of only the lower
facial muscles from the molar region to the sublingual caruncle
D. (papilla).Which of the following structural
A contralateral paralysis of only the upper
facial muscles groupswill be exposed first?
E.
An ipsilateral flaccid paralysis of only the
lower facial muscles A Sublingual gland, lingual nerves, and
submandibular duct
B. Hyoglossus and mylohyoid muscles, and
4.
The temporalis muscle inserts into the hypoglossal nerve .
c. Lingual nerve, lingual artery, and anterior
A coronoid process. belly of the digastric muscle
B. condylar process. D. Lingual nerve, hypoglossal nerve, and
C. fovea of the mandible. submental branch of the facial artery
D. lateral aspect of the mandibular angle. E. Anterior belly of the digastric muscle,
E. articular disk of the temporomandibular mylohyoid nerve, and submental branch of
joint. thefacialartery
5.
Which of the following is surrounded partly by
connective. tissue and epithelium, contains
9.
lymphoid follicles, has no sinuses, and is The trigeminal nerve innervates exclusively
penetrated by a number of crypts? which of the following muscles or muscle parts?
A Spleen A Buccinator and masseter
B. Thymus B.
Mylohyoid and geniohyoid
C.
Lymph node C. Medial and lateral pterygoid
D.
Palatine tonsil D. Tensor and levator veli palatini
E.
Bursa of Fabricius E. Anterior and posterior bellies of digastric
.r.
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10. Asthe subclavian veincrosses the firstrib,it 15. Whichofthe followingnerves isthe MOS'
lies likelyto become injuredinfractures ofth
mid-humeralshaft?
.
A anteriorto the anterior scalene muscle.
B. posterior to the anterior scalene A Ulnar
muscle. B. Radial
C. posteriorto the posterior scalene C. Median
muscle. D. Axillary
D. between the anterior and the posterior E. Musculocutaneous
scalene muscles.
E. between the scalene posterior and the
levator scapulae muscles. 16. Whichofthe followingtypes ofepithelium
welladapted forsecretory orabsorptive
functions?
11. Whichofthe followingBEST describes the
passage ofmaterial through the hepatic A Simple columnar
sinusoids? B. Simple squamous
C. Stratified cuboidal
A Bloodpasses toward the central vein. D. Stratified squamous
B. Bilepasses peripherally toward the. E. Psuedostratified columnar
portalcanal.
C. Lymphmoves centrallytojointhe
sublobular duct. 17.> Itis possible to distinguish histologically \;1
D. Lymphmoves peripherallytoward the between the stomach and the duodenum ~
space of Disse. because ofthe presence of
E. Bloodpasses peripherally away from.
the centralvein. A mucosalglandsinthestomachonly..
B. submucosal glands in the duodenum..~
only.'
12. Inthe lifecycleofan ameloblast, there are C.' simple columnqr epithelium liningthe'
- cells that contain Tomes' processes. These stomach only. .
cellsare inwhichofthe followingstages? D. muscularis mucosa in the stomach
..
only.
A Secretory E. smooth muscle inthe external
B. Morphogenic musculature ofthe duodenum only.
C. Organizing
D. Maturative
E. Protective
18. The superior and inferiorophthalmicveins
draindirectlyorindirectlyintothe
13. Histologically,the osteoclasts of bone
A frontalvein.
resorption are typically
B. cavernous sinus.
A anuclear. C. anteriorfacialvein.
B. mononuclear. D. internaljugular vein.
C. multinuclear. E. superior petrosal sinus.
D. polymorphonuclear.
14. Duringan intraoral injectionto the mandibular 19. Each ofthe followingdevelops as an
foramen, the needle passes through the outpocketing ofthe guttube EXCEPT one.
Which one is this EXCEPTION?
mucous membrane and the buccinator
muscle. As itdoes so, the needle lies
A Lung
A inferiorto the mandibular lingula. B. Liver
B. superior to the auriculotemporal nerve. C. Spleen
D. Pancreas
C. lateralto the neck ofthe mandible.
D. lateralto the medial pterygoidmuscle. E. Gallbladder
E. lateral to the stylomandibularligament.
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.
24. Which of the following processes can be seen -
in the photomicrograph below?
~
~
of the following nerves contributes to
motor innervation of intrinsic muscles of "
tongue?
.,
:.
"
it
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A Osteoclasia
B. Endochondral bone formation
C. Intramembranous bone formation .!,i1
D. Secondary center of ossification
Each of the following muscles receives motor
innervation from the ansacervicalis EXCEPT :1"
~.
.one. \Nhich one is this EXCEPTION? ~
A Omohyoid 25. Which ofthe following structures leaves an ~..
B.
Thyrohyoid impression on the right lung?
C. Geniohyoid
I
O. Sternohyoid A Azygosvein
E. Sternothyroid B. Rightvagus nerve J!
C. Rightphrenic nerve ,
D. Descending thoracic aorta ~
E. Right common carotid artery
The three divisions of the trigeminal nerve 26. Which ofthe following represents the main
pass through openings in which of the support ofthe wall of a bronchus?
following bones?
A Smooth muscle
Frontal
B. Hyaline cartilage
Sphenoid C. Elastic membranes
Temporal D. Dense irregular connective tissue
Parietal
E. Elastic and collagenous connective
Occipital tissue
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.
27. The diploidnumber of chromosomes is 32. Each ofthe followingstructures is an opening
maintained in proliferatingsomatic cells by intothe pterygopalatine fossa EXCEPTone.
whichof the followingprocesses? Whichone isthis EXCEPT/OfV?
A Meiosis A Facial canal
B. Mitosis B. Pterygoidcanal
C. Budding C. Pharyngeal canal
D. Amitosis D. Sphenopalatine foramen
E. Cytokinesis E. Pterygomaxillary fissure
28. Tendons are comprised ofwhich ofthe
followingtypes of collagenous connective 33. The hepatic veins drain blood fromthe liver
tissue? intothe
A Areolar A inferiorvena cava.
B. Reticular B. superior vena cava.
C. Dense regular C. azygos vein.
- D. Dense irregular D. portalvein.
E. superior mesenteric vein.
.29. -whichofthe followingnerves innervates the
trapezius muscle? . .
34. Calcium ions are sequestered by
A Radial
B. Axillary A T-tubules.
C. B. sarcoplasm.
Accessory
D. Thotacodorsa.l C. sarcosomes.
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E. long thoracic D. myofibrils.
E. sarcoplasmic reticulum.
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30.
The lateralpterygoid muscle insert~ into
whichofthe following?
35. Whichofthe followingtwo muscles attach to
A Condylar process only the pterygomandibular raphe?
B. Medialaspectofthe mandibularramus
;.~
C. Articulardisk ofthe temporomandibular A Buccinator and palatopharyngeus
jointonly B. Medialpterygoid and palatopharyngeus
D. Articulardisk ofthe temporomandibular C. Levatorvelipalatini and
jointand neck ofthe mandible palatopharyngeus
E. Articulardisk ofthe temporomandibular D. Buccinator and superior pharyngeal
- joint and coronoid process constrictor
31. Ifthe facialnerve weretobe cutjustafterit
36. Whichofthe followingfeatures distinguishes
exitedthe stylomastoid foramen, itwould bone from osteoid?
cause loss ofinnervationtowhichofthe
following? A Bone is not resorbed.
B. Bone has a mineralized matrix.
A
lacrimal gland C. Osteoid contains fewer lacunae per unit
B. Mylohyoidmuscle area.
C. Submandibular gland
D. Osteoid contains a differenttypeoffiber
D. Orbicularis oculi muscle
inits matrix.
E. Anteriorbellyofthe digastric muscle
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,.,.
37. Which ofthe following explainswhy theBarr 42. Some medications can be absorbed through
body found in certain epithelial cells is the mucosa of the tongue's ventral surface
significant? andthrough the mucosa ofthe floor of the
mouth.This absorption can take place in
these areas because the mucosa is
A Itsuggests mitotic activity.
B. It indicates protein synthesis.
C. It indicates a metaplasmic change. A covered by pseudostratified squamous
D. It is a symptom of nuclear epithelium.
B.
disintegration. covered by simple squamous
.
E. It assists in differentiating between the epithelium with a vascular lamina
sexes. propria.
c. covered bythin nonkeratinized stratified
squamous epithelium with a thin lamina
propria.
D. covered bykeratinized stratified
38. squamous epithelium that contains
The vagus nerve supplies parasympathetic
fibers towhich ofthe following? numerous capillaries.
E.
pierced by the ducts of numerous minor
salivary glands through which some
A Descending colon
types of medication are easily
B. Ascending colon
absorbed.
C. Sigmoid colon
D. Rectum
I
E. Anus
43. Painfibers from the posterior third of the J
tonguetravel with which cranial nerve?
39.
The lymph vessels that drain both dental
A Vagus
arches connect directly with which of the B. Facial
following nodes? C. Trigeminal
.
D. Glossopharyngeal
A Submandibular
E. Hypoglossal
B. Deepcervical
C. Sublingual I
I
D. Retropharyngeal
I
E. Superficial cervical
44. A patient who has damage to the right
I
hypoglossal nerve will protrude the tongue
40. Which of the following strata of the epidermis
A upward.
isthe LEAST cytodifferentiated? B. downward.
C. straight forward.
A Basale
D. toward the right side.
B. Corneum
E. toward the left side.
C. Spinosum I
D. Granulosum ~
~",.
J.:
45.
Interms of wall thickness, the relative
proportion of smooth muscle is GREATESTin
41. The roots of the brachial plexus are derived
which of the following?
from the ventral rami of
A Veins
A the cervical plexus. B. Venules
B. the spinal accessory nerve. C. Arterioles
C. spinal nerves C3 through C5 D. Capillaries
D. spinal nerves C3 through C7. E. Large arteries
E. spinal nerves C5 through T1.
..
.
46. Thesuperior laryngeal artery piercesthe 51. The buccinator muscle is supplied bywhich of
thyrohyoid membrane in company with which the following nerves?
of thefollowing laryngeal nerves?
A Facial
A Inferior laryngeal B. Lingual
B. Internal laryngeal c. Spinal acessory
C. External laryngeal D. Inferior alveolar
D. Superior laryngeal E. Buccal nerve ofthe trigeminal
E. Recurrent laryngeal
52. Inwhich of the following are numerous
47. Thevertebral artery isabranch ofthe afferent lymphatic channels found?
A brachiocephalic artery. A Spleen
- B. external carotid artery. R Thymus
C. internal carotid artery. C. Lymph nodes
D. subclavian artery. D. Palatine tonsils
E. thyrocervical trunk. E. Pharyngeal tonsils
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48. The muscle that is the prime mover in left 53. The submucosa is present in each of the
lateral excursion is the foHowingEXCEPT one. Which one is this
EXCEPTION?
-
A right masseter.
B. left medial pterygoid. A Colon
C. right medial pterygoid. B. Stomach
- D. left lateral pterygoid. C. Jejunum
E. right lateral pterygoid. D. Gallbladder
E. Duodenum
49.
Each of the following structures lies between
54.
the hyoglossus and the mylohyoid muscles" Each ofthe following structures is bound by a
EXCEPT one. Which one isthis EXCEPTION? membrane EXCEPT one. Which one is this
- EXCEPTION?
A Lingual nerve
B. Lingual artery A Nucleolus
C. Sublingual gland B. Lysos~me
D. Submandibular duct C. Nucleus
- E. Hypoglossal nerve D. Mitochondrion
E.
Pinocytotic vesicle
50. Which of the following represents the function 55. The hypophysis is situated in a fossa ofwhich
of the interstitial cells (ofLeydig) in thetestis? of the following bones?
-
A Form the acrosome A Ethmoid
B. Secrete testosterone B. Frontal
C. Inhibit spermatogenesis C. Temporal
D. Supply nutrients to sex cells D. Sphenoid
E. Support the germinal epithelium E. Palatine
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,
56. Whitematter ofthe spinal cord consists 61. The core ofa ciliumis composed of
chieflyofwhichofthe following?
A microvilli.
A Perineurium B. microtubules. .'
B. Myelinatedaxons C. microfibrils.
C. Unmyelinated axons D. tonofilaments.
D. Nervecellbodies E. microfilaments.
E. Loose connective tissue
57. The thoracic ductempties directlyintothe
junctionofthe 62. Eachofthefollowingenters the orbitbywayof
the superiororbitalfissure EXCEPT one.
A superiorvena cava andthe azygosvein. Whjchone isthis EXCEPTION?
B. leftjugular and brachiocephalic veins.
C. rightjugular and brachiocephalicveins. A Abducens nerve
D. leftinternaljugularandsubclavian B. Trochlearnerve
veins. C. Oculomotornerve
E. rightinternaljugular and subclavian D. Ophthalmicartery
veins. E. Ophthalmicdivisionofthe trigeminal
nerve
58. Pain, touch, temperature and proprioceptive
modalitiesfor the temporomandibular joint
are carriedbyway ofwhichofthefollowing
.nerves?
63. Thecapacityofthe tongue'for forceful
movement depends on striated muscle
A Auriculotemporal
supplied bywhichofthe followingcranial
B. Auditory
nerves?
C. Temporal
D. Superior alveolar
A V
E. Inferioralveolar
B. \111
C.
DC
D. X
59. The leftrecurrent laryngeal nerve isclosely E. XJI
related at its beginningto the
A leftsubclavian artery.
B. archofthe aorta andthe leftpulmonary 64. Howmanylobes does the rightlungusually
veins. have?
C. ligamentum arteriosum and the arch of
the aorta. A 1
D. pulmonarytrunkandthe left B. 2
brachiocephalic vein. C. 3
E. ligamentum arteriosum and the left D. 4
brachiocephalic vein. E. 5
60. Whichofthe followingcranial nerves contain 65. Enlargement ofthe thirdventricleand both
parasympathetic preganglionic fibers? lateralventricles is caused byobstruction of
the
A II,III,IV,and V
B. III,IV,V,and VI A cerebral aqueduct.
C. III,V,V~~,and IX B. foramen of Magendie.
D. III,VII,IX,and X C. foramina of Luschka.
E. VII,IX, X,and XI D. interventricularforamina ofMonro.
.,
,
66.
Melanocytes are derived fromwhichofthe 70.
Highlyskilled,discrete motoractivityofthe
following?
hand is dependent onwhich ofthe following
cortical areas of the hemisphere?
A Ectoderm
B. Endoderm A
Transverse temporal gyrus
C. Mesoderm B. Angulargyrus ofthe parietal lobe
D. Dermatomes C.
Precentral gyrus ofthe frontallobe
E. Neural crest D. Paracentral lobule on the medial
surface
67. When both dentitions ofthe human are 71.
Duringswallowing, muscular contraction
considered, which ofthe followingrepresents, results in movements that seal offthe
oropharynxfromthe nasopharynx. Whichof
inyears, the lifespan ofthe dental lam~~ the followingmuscles cause movements that
A 1 C.o~ result ina foldinthe posterior wallofthe
B.. 3 4' c:> pharynx?
~0
..'.
C. 5
- D. 9 ~~ A Levatorvelipalatini
E. 12\-t~ B. Tensor velipalatini
C. Palatopharyngeus
D. Musculus Uvulae
- E. Palatoglossus.
68.
Cementum differsfromdentin inthat
----
cementum 72.
Fromwhichofthe followingis the periodontal
ligament derived?
A contains more inorganic materialthan
- dentin. A Dental sac
8. is notformedfollowingeruption ofthe 8. Enamel organ
tooth. C. Dental papilla
C. can contain cells, whereas dentin D. Epithelialroot sheath
-
contains cells as wellas cell E.
Outer enamel epithelium
processes.
D.
isproduced bycells ofthe periodontal
- ligament, but dentin is produced bypulp 73. Compared withintertubular dentin, peritubular
cells.
dentin ischaracterized bywhichofthe
E. contains some elastic fibers, whereas
following?
dentin contains onlycollagenous fibers.
, A
Greater stainability
B.
Higherquantity offluids
C.
Lesser content of inorganic salts
D.
Greater content of inorganic salts
- E.
Greater content of large collagen fibers
69.
Adentist willuse screw-type implantsto
replace the maxillaryincisors (Teeth#s 7, 8,
74.
9, and 10).Ifthese implantspass throughthe Which ofthe followingrepresent fan-shaped,
bone inthis region,then whichofthe following hypocalcifiedareas that originate at the
regions willthey be entering? dentinoenameljunctionand extendinto
enamel for part of its thickness?
- A Orbit
B. Mentalforamen A Tufts
C. Nasalcavity 8. Spindles
D. Maxillarysinus C. Lamellae
E. Pterygopalatine fossa D. Hunter-Schreger bands
E. Contour lines ofOwen
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75. Thecalcified bodies sometimes found in the 80. Thelingula of the mandible serves as an
POLareBEST described aswhich ofthe
attachmentfor which ofthe following?
following?
A Temporalis
A Cementicles 8.
Stylomandibular ligament
B. Denticles C.
Sphenomandibular ligament
C. Bone D.
Temporomandibular ligament
D. Enamel pearls _. Tendon of the digastric muscle
E. Mineralized interstitial tissue
81. Inthe developing embryo the palate is
separatedfrom the lip by a shallow sulcus in
76. Cell bodies of the somatic motor system liein thedepths of which two epithelial laminae
arise.The outer lamina is the
which of the following locations?
-
A Dorsal horn A. dental lamina for primary teeth.
s.
B. Ventral horn dental lamina for permanent teeth.
C.
C. Autonomic ganglia primordium of the parotid gland.
D. Dorsal root ganglia D-. primordium of the buccal frenula.
E. Intermediolateral horn vestibular lamina.
82.
'I/hichofthe following is derived from
ectomesenchyme7
77.
Which of the following represents the location
ofthecell bodies ofpain fibers.inthe A Ameloblasts
glossopharyngeal nerve? S. Odontoblasts
C. Stellate reticulum
A Otic ganglion D. Stratum intermedium
-
B. Nucleus ambiguus Reduced enamel epithelium
C.- Trigeminal-. (semilunar) ganglion
D. Spinal nucleu~ of cranial nerve V
E. Superior ganglion of cranial nerve IX 83. Ina newlyerupted tooth, the junction between
teothsurface and the crevicular epithelium
c:Jnsistsof which of the following?
,
78. Which of the following represents thecranial 1"'1. Interstitial crevicular fluid
nervethat supplies derivatives ofthethird S. Basal lamina-like structure between
branchial arch? enamel and epithelium
c. Basal lamina-like structure between
A Facial cementum and epithelium
B. Accessory D. Basal lamina-like structure between
C. Trigeminal dentin and epithelium
.
D. Hypoglossal _. Keratin fibers, running from the
E. Glossopharyngeal epithelium deeply into the enamel
79. 84. vVhichgroup of fibers of the periodontal
Optic nerve fibers from the nasal half ofthe
ligamentis the first to offer resistance to
retina cross the midline and enter the optic
movementof the tooth in an occlusal
tract of the opposite side byway ofthe direction?
A optic chiasma. A Alveolar crest
B. lateral geniculate body. 8. Interradicular
C. bipolar cells of the retina. C. Horizontal
D. brachium of the superior colliculus. D. Oblique
E. geniculocalcarine tract (optic ~
c:. Apical
radiations).
--
.it".:s
.~~;
.,
,
85. Whichofthe followingBEST characterizes the 89. Salivarygland striated ducts are composed of
alveolar mucous membrane? whichofthe followingtypes ofepithelium?
A Has no melanocytes A Simple squamous
B. Firmlybound to underlyingbone B. Simple cuboidal
C. Well developed epithelial ridges C. Stratified squamous
D. Separated fromthe gingivabythe free D. Simple low columnular
gingivalgroove . E. Psuedostratified ciliated columnar
E. Appears red due to highvascularity and
thinness of epithelium
90. Which ofthe followingmuscles insert(s) onto
the neck ofthe condyle?
A Masseter
B. Temporalis
86. Asdemonstrated bythe pattern ofsensory C. Lateral pterygoid
innervation,whichofthe followingbranchial D. Medialpterygoid
arches are concerned indevelopment ofthe
tongue?
A Firstand second only 91. Odontoblasts are characterized by
B. First, second, and third
. C. Second and thirdonly A being located on external surfaces of
D. Second, third,and fourth roots.
E. Thirdand fourthonly B. being shed fromthe tooth atthe timeof
eruption.
C. differentiatingfirstat the cervicalregion
ofaformingtooth.
D. secreting a non-fibrous matrix
'composed of chains of amino acids.
E. possessing long cytoplasmic
processes which liewithindentinal
87. The apical cytoplasm ofactiveserous tubules.
glandular cells istypicallyfilledwithwhichof
the following?
A Large amount of DNA 92. Whichofthe followingare pure serous
B. Abundance of ribosomes
glands?
C. Abundance of mitochondria
D. Abundance of lipiddroplets A Sublingual glands
E. Abundance ofzymogen granules B. Glands of Brunner
C. Submandibular glands
D. Glands ofvan Ebner
E. Glands of Blandin-Nuhn
-
88. Each ofthe followingembryologicstructures 93. Whichofthe followingstructures contacts
isderived fromthe firstbranchial arch
posteriorlywiththe isthmus ofthe thyroid
EXCEPT one. Which one isthis EXCEPT/ON?
gland?
A Tuberculum impar A Larynx
B. Maxillaryprocess B. Pharynx
C. Mandibular process C. Trachea
D. Intermaxillaryprocess D. Esophagus
E. Lateral lingual swelling E. Carotid sheath
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