800 Questions Anatomic Sciences_pag23

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8 Chapter 1: Anatomic Sciences
48. Which of the following structures converge to
form the pterygomandibular raphe?
A. Superior pharyngeal constrictor and
mylohyoid
B. Medial pterygoid and mylohyoid
C. Buccinator and superior pharyngeal
constrictor
D. Buccinator and mylohyoid
E. Medial pterygoid and superior pharyngeal
constrictor
Questions 49-53 pertain to the following clinical
vignette:
A 55-year-old female presents to your office for
deep scaling and root planing as part of treatment
for periodontitis. 
49. Due to large pocket depths surrounding the
mandibular right molars, anesthesia of this
quadrant is necessary to adequately scale and
plane the roots. In order to locate area where
anesthesia is distributed for inferior alveolar
nerve block, you palpate which structure?
A. Lingula
B. Coronoid notch
C. Antilingula
D. Angle of the mandible
E. External oblique ridge of the mandible
50. As is the case with periodontal disease, peri-
odontal attachment loss is evident. Which of
the following principal collagen fibers of the
PDL course at right angles from the cemen-
tum to adjacent alveolar bone?
A. Horizontal
B. Apical
C. Interradicular
D. Transseptal
E. Oblique 
51. Principal collagen fibers of the PDL are com-
prised of which of the following type(s) of
collagen?
A. Type I only
B. Type II only
C. Type III only
D. Type I and III
E. Type II and III
52. Which of the following is the most abundant
cell of a healthy periodontal ligament?
A. Lymphocytes
B. Neutrophils
C. Osteoblasts
D. Cementoblasts
E. Fibroblasts
53. All of the following vessels contribute to
Kisselbach plexus EXCEPT
A. lesser palatine artery.
B. sphenopalatine artery.
C. lateral nasal branches of facial artery.
D. superior labial artery.
E. anterior ethmoid arteries of internal
carotid artery.
Questions 54-58 pertain to the following clinical
vignette:
A 26-year-old male presents to the emergency
department following a bar fight. He mentions that
he was punched in the area of his right eye, and is
complaining of a headache. You note periorbital
edema of his right eye, as well as complaints of
pain when palpating right midfacial region infero-
lateral to his right eye (which also seems slightly
depressed).
54. Each of the following bones are part of the
orbit EXCEPT
A. frontal.
B. zygoma.
C. ethmoid.
D. lacrimal.
E. temporal.
55. Which of the following arteries is the MAJOR
blood supply to the orbit and eye?
A. Facial
B. Ophthalmic
C. Maxillary
D. Transverse facial
E. Infraorbital
56. Which of the following muscles has its origin
on the zygomatic process of maxilla (superfi-
cially) and zygomatic arch (deep)?
An
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dr_harithali@yahoo.com
Dr. Aravindhan
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Dr. Aravindhan
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Dr. Aravindhan
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Dr. Aravindhan
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Dr. Aravindhan
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