Block 3: Practice Exam #2 Flashcards
Which of the following is not associated with the frontal bone(s)?
A) malar flush
B) glabella
C) metopic suture
D) supraorbital foramen
E) roof of the orbit
malar flush
Which of the following is not correct for the cribriform plate?
A) It is part of the ethmoid bone.
B) It possesses numerous tiny foramina that transmit olfactory nerves.
C) It is located in the middle cranial fossa.
D) It lies adjacent to the crista galli.
E) It is located posterior to the frontal crest.
It is located in the middle cranial fossa
Which of the following is not a foramen or fissure in the sphenoid bone?
A) superior orbital
B) rotundum
C) ovale
D) lacerum
E) spinosum
lacerum
You examine a comatose patient in the emergency room. His wife relates that her husband was struck accidentally in his “temple” by a baseball. After an initial period of unconsciousness, he seemed to be okay but later became drowsy and comatose. You suspect that the patient is suffering from:
A) an extradural (epidural) hematoma caused by a laceration of a branch of the middle meningeal artery.
B) a subdural hematoma caused by a laceration of a branch of the middle meningeal artery.
C) an extradural (epidural) hematoma caused by a laceration of the transverse venous sinus.
D) a subdural hematoma caused by a laceration of a branch of the transverse venous sinus.
E) a subarachnoid hemorrhage caused by a laceration of the internal carotid artery.
an extradural (epidural) hematoma caused by a laceration of a branch of the middle meningeal artery
Which one of the following conditions would be most consistent with the definition of a “blowout” fracture of the orbit?
A) orbital fat becoming displaced into frontal sinus
B) the inferior oblique muscle becoming displaced into the maxillary sinus
C) all of the recti muscles becoming detached from their bony attachments
D) the superior oblique muscle losing its attachment to the trochlea
E) exophthalmos
the inferior oblique muscle becoming displaced into the maxillary sinus
Upon neurological examination, you notice a slow pupillary light reflex in a patient’s right eye. Which of the following is consistent with this sign?
A) lesion of the right nasociliary nerve
B) compression of the right oculomotor nerve
C) compression of the right facial nerve
proximal to the geniculate ganglion
D) compression of the right facial nerve distal to the geniculate ganglion
E) lesion of the left long ciliary nerves
compression of the right oculomotor nerve
In complete oculomotor nerve palsy, the pupil is:
A) depressed and abducted
B) elevated and abducted
C) depressed and adducted
D) elevated and adducted
E) fixed in a neutral position
depressed and abducted
Excessive contraction of both lateral pterygoid muscles may result in:
A) fracture of the angle of the mandible.
B) fracture of the coronoid process of the mandible.
C) lateral dislocation of one mandibular condyle and medial dislocation of the other.
D) anterior dislocation of condyles of the mandible.
E) posterior dislocation of the condyles of the mandible.
anterior dislocation of condyles of the mandible
Which of the following is incorrect pertaining to the muscles of mastication?
A) They are all innervated by the motor division of the trigeminal nerve.
B) The temporal, masseter, and medial pterygoid all can close the mouth.
C) Alternating contraction of the temporalis muscle can produce rotary movements.
D) Two of them attach to the lateral pterygoid plate.
E) The masseter can protrude the mandible.
Alternating contraction of the temporalis muscle can produce rotary movements.
The gag reflex can be initiated by touching the posterior aspect of the tongue. The nerve responsible for conducting the afferent part of this reflex is the:
A) lingual.
B) vagus.
C) glossopharyngeal.
D) hypoglossal.
E) pinnal accessory.
glossopharyngeal
Which of the following structures is not connected to the hyoid bone by a muscle?
A) styloid process of the temporal bone
B) mastoid process of the temporal bone
C) scapula
D) manubrium
E) body of mandible
mastoid process of the temporal bone
In a newborn infant, torticollis resulting from a tissue tumor most likely involves which of the following muscles?
A) sternocleidomastoid
B) trapezius
C) scalenus anterior
D) semispinalis cervicis
E) levator scapulae
sternocleidomastoid
Which of the following is not true of either the transverse cervical or suprascapular arteries?
A) typically arises from the thyrocervical trunk
B) typically passes anterior to scalenus anterior
C) supplies the cords of the brachial plexus
D) occasionally arises from the third part of the subclavian artery
E) provides blood to the deltoid
provides blood to the deltoid
The phrenic nerve:
A) provides the sole motor innervation to the diaphragm.
B) is derived from the brachial plexus.
C) contains sympathetic fibers derived from the inferior cervical ganglion.
D) enters the chest by passing anterior to the subclavian vein.
E) forms posterior to the anterior scalene muscle.
provides the sole motor innervation to the diaphragm
Which of the following is incorrect pertaining to the infrahyoid muscles?
A) They depress the hyoid bone during swallowing and speaking.
B) One of them attaches to the scapula.
C) One of them passes posterior to the thyroid gland.
D) One of them has an attachment to the clavicle.
E) All but one are innervated by the ansa cervicalis.
One of them has an attachment to the clavicle
Which one of the following arteries is not a branch of the external carotid?
A) middle meningeal
B) occipital
C) facial
D) lingual
E) maxillary
middle meningeal
The optic chiasm:
A) is in the orbit.
B) refers to the central artery of the retina’s crossing of the subarachnoid space.
C) refers to partial splitting of the optic nerve fibers from each side to form the right
and left optic tracts.
D) refers to the missing field in visual field deficits.
E) occurs in the lateral geniculate body.
refers to partial splitting of the optic nerve fibers from each side to form the right
and left optic tracts.
Which of the following is not correct for the trochlear nerve?
A) It emerges from the posterior aspect of the brainstem.
B) Nerve injury is characterized by inability to focus on near objects.
C) Nerve injury is characterized by lack of coordination for the two eyes when looking
downwards.
D) It traverses the lateral wall of the cavernous sinus.
E) It innervates the superior oblique.
Nerve injury is characterized by inability to focus on near objects
Which of the following is not correct for the motor fibers of the trigeminal nerve?
A) They originate in the trigeminal ganglion.
B) They pass through foramen ovale.
C) They are distributed entirely with the mandibular division.
D) They innervate the muscles of mastication.
E) They innervate the tensor tympani muscle.
They originate in the trigeminal ganglion
Which of the following associations is not correct?
A) corneal reflex—tests integrity of ophthalmic nerve
B) foramen rotundum—maxillary nerve
C) pterygopalatine ganglion—maxillary nerve
D) trigeminal neuralgia—loss of cutaneous sensation in areas of face supplied by
trigeminal nerve
E) transection of mandibular nerve—deviation of mandible to lesion side
trigeminal neuralgia—loss of cutaneous sensation in areas of face supplied by
trigeminal nerve