Block 3: Practice Exam #3 Flashcards
Which of the following associations is INCORRECT pertaining to the blood supply of the brain?
A. middle cerebral artery—supplies the lateral surface of the brain
B. anterior communication artery—connects anterior cerebral arteries
C. cerebral arterial circle (circle of Willis)—an
anastomosis between the two vertebral and two internal carotid arteries
D. posterior cerebral artery arises from the internal carotid artery
posterior cerebral artery arises from the internal carotid artery
If the posterior aspect of the spine was pierced, with a needle, all the way through to the spinal cord which of the following ligaments would NOT be pierced by the needle?
A. anterior longitudinal ligament
B. interspinous ligament
C. ligamentum flavum
D. supraspinous ligament
anterior longitudinal ligament
Which of the following does NOT have an insertion into the head?
A. iliocostalis
B. longissimus
C. semispinalis
D. spinalis
iliocostalis
Regarding the posterior scalene muscle, all of the following are true EXCEPT:
A. it originates from the transverse processes of the lower cervical vertebrae (usually C4 - C6)
B. it inserts on the second rib
C. is is innervated by the ventral rami of the 6th, 7th, and 8th cervical spinal nerves
7th, and 8th cervical spinal nerves
D. it aids in neck flexion along with the anterior and middle scalenes
E. it is a secondary respiratory muscle because it helps depress the second rib
it is a secondary respiratory muscle because it helps depress the second rib
Ligation (tying off) of the external carotid artery above the level where the occipital artery typically branches off would still allow blood to flow to all of the following arteries EXCEPT?
A. ascending pharyngeal
B. facial
C. lingual
D. maxillary
E. superior thyroid
maxillary
Which of the following nerves does NOT exit the skull through the superior orbital fissure?
A. ophthalmic (V1)
B. oculomotor
C. trochlear
D. maxillary (V2)
E. abducens
maxillary (V2)
Which of the following bones is NOT part of the lateral wall of the bony orbit?
A. frontal
B. ethmoid
C. sphenoid
D. zygomatic
ethmoid
The bones which contribute to the pterion of the skull include all of the following EXCEPT:
A. frontal
B. parietal
C. sphenoid
D. temporal
E. zygomatic
zygomatic
All of the following statements concerning the bones of the skull are true EXCEPT:
A. The maxilla forms the antero-lateral aspect of the orbit
B. The parietal bones are separated from each other by the sagittal suture
C. The pterygoid process is part of the sphenoid bone
D. The styloid process is part of the temporal bone
E. The zygomatic arch is a union between processes from the zygomatic and temporal bones
The maxilla forms the antero-lateral aspect of the orbit
Which of the following cranial nerves is INCORRECTLY identified with its entrance/exit from the cranial vault of the skull?
A. abducens - superior orbital fissure
B. maxillary - foramen ovale
C. oculomotor - superior orbital fissure
D. olfactory - cribiform plate
E. vestibulocochlear - internal auditory meatus
maxillary - foramen ovale
Which of the following does NOT attach the Atlas (C1) or Axis (C2) to the skull?
A. alar ligaments
B. apical ligament
C. superior band of cruciform (cruciate) ligament
D. tectorial membrane
E. Transverse Ligament of Atlas
Transverse Ligament of Atlas
Which of the following arteries is NOT a direct branch of the external carotid artery?
A. ascending pharyngeal
B. maxillary
C. middle meningeal
D. occipital
E. posterior auricular
middle meningeal
Compression of the first and second cervical nerve roots would result in weakness of all of the following muscles EXCEPT:
A. geniohyoid
B. mylohyoid
C. omohyoid
D. sternohyoid
E. thyrohyoid
mylohyoid
Which of the following signs would be consistent with Bell’s palsy?
A. inability to raise the upper eyelid
B. loss of the jaw jerk reflex
C. inability to smile
D. loss of ability to protrude the tongue E. loss of ability to focus on near objects
inability to smile
The muscle primarily responsible for pursing the lips together, as during speech, is which of the following?
A. orbicularis oris
B. risorius
C. zygomaticus major
D. buccinator
E. levator labii superioris
orbicularis oris
Fracture of the body of the mandible could result in loss of sensation to the lower row of teeth due to disruption of which of the following nerves?
A. lingual nerve
B. inferior alveolar nerve
C. chorda tympani
D. buccal nerve
E. masseteric nerve
inferior alveolar nerve
The afferent limb of the corneal reflex is through ____________ and the efferent limb of the corneal reflex is through ________________.
A. Ophthalmic nerve; Optic nerve
B. Oculomotor nerve; Ophthalmic nerve
C. Ophthalmic nerve; Facial nerve
D. Nasociliary nerve; Trochlear nerve
E. Oculomotor nerve; Facial nerve
Ophthalmic nerve; Facial nerve
Which of the following is a feature of the temporal bone?
A. coronal suture
B. glabella
C. superior nuchal line
D. the groove for the middle meningeal artery
E. foramen rotundum
the groove for the middle meningeal artery
The white part of the eye is referred to as which of the following names?
A. retina
B. sclera
C. iris
D. lacrimal lake
E. choroid
sclera
Upon examination of a patient with a knife wound to the right side of her neck, you observe that the patient has difficulty breathing. The most likely diagnosis is injury to the:
A. dorsal scapular nerve.
B. phrenic nerve.
C. spinal accessory nerve.
D. superior trunk of the brachial plexus.
E. suprascapular nerve.
phrenic nerve
The function of the multifidus muscle is:
A. extension
B. eccentric contraction controlling lateral bending
C. rotation of vertebral bodies to the opposite side
D. all of the above are functions of the multifidus
all of the above are functions of the multifidus
Spinal nerves exit the vertebral canal through the:
A. foramen magnum.
B. intervertebral foramen.
C. transverse vertebral foramen.
D. vertebral foramen.
intervertebral foramen.
A bilateral pars interarticularis defect leading to slippage of the vertebra is known by which of the following names?
A. lumbololysis
B. spondylolysis
C. spondylolithesis
D. spondylosis
spondylolithesis
While cooking you spill black pepper into the air causing you to sneeze. The sensation (afferent) impulse was carried to the brain via cranial nerve ________________ and the physical aspect of the sneeze (efferent) was mediated by cranial nerve ____________________.
A. V v1;X
B. V v2;X
C. VII;IX
D. VII;X
V (v2)
X
Which of the following is correct pertaining to the VIIth cranial nerve?
A. A lesion can result in hearing loss
B. A lesion can result in tinnitus
C. A lesion can result in vertigo
D. It exits the skull via the foramen ovale
E. It is the efferent limb of the corneal reflex
It is the efferent limb of the corneal reflex
Damage to which of the following cranial nerves will result in the eyeball drifting inward (medially, toward the nose)?
A. III
B. IV
C. V
D. VI
E. VII
VI
The middle meningeal artery enters the cranial vault through the ________________ and lies in the ________________ space.
A. foramen ovale; subdural
B. foramen spinosum; extradural
C. foramen rotundum; extradural
D. foramen spinosum; subdural
E. foramen lacerum; subdural
foramen spinosum; extradural
A morphological structure common to ALL cervical vertebrae is the
A. bifid spinous process
B. odontoid process (dens)
C. presence of a vertebral body
D. transverse vertebral foramen
E. all of the above are common to ALL cervical vertebrae
transverse vertebral foramen
Which of the following is (are) true statement(s) concerning the anterior scalene muscle?
A. It takes origin from the transverse processes of cervical vertebrae
B. it inserts into the scalene tubercle of the first rib
C. the roots of the brachial plexus lie posterior to it
D. it is innvervated by the ventral rami of the cervical spinal nerves
E. all of the above are true of the anterior scalene muscle
all of the above are true of the anterior scalene muscle
The uncus (uncinate process) is a unique feature of which of the following vertebral regions?
A. cervical
B. coccyx
C. lumbar
D. sacral
E. thoracic
cervical
A severe hyperextension injury of the spine would most likely injure which of the following ligaments?
A. anterior longitudinal ligament
B. interspinous ligament
C. ligamentum nuchae
D. posterior longitudinal ligament
E. supraspinous ligament
anterior longitudinal ligament
While in a bar playing darts, a man is struck in posterior neck, just distal to the occipital bone, with a dart. The injury paralyzes the suboccipital muscles. Which of the following nerves is most likely damaged?
A. cranial nerve II
B. cranial nerve XI
C. dorsal primary ramus of C1
D. dorsal primary ramus of C2
E. dorsal primary ramus of C3
dorsal primary ramus of C1