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Anatomy - H&N and CNS MCQs
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Anatomy - H&N and CNS MCQs
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Section 1Head and Neck mcqs
1) Regarding the superior orbital fissure, which is INCORRECT?
a) its common tendinous ring binds the SOF content of nerves and muscles to the contents of the optic
canal
b) the origin of levator palpebrae superioris is its bony upper margin
c) lacrimal, frontal and trochlear nerves pass through it
d) the oculomotor, abducens and nasociliary nerves lie within the cone of the extraocular muscles
2) Regarding the extraocular muscles:
a) they all arise from a common tendinous ring around the superior orbital fissure
b) the rectus muscles all pass laterally to their point of insertion because of the angle of the orbital apex
within the skull
c) the superior oblique muscle passes through the trochlear, a fibrocartilage loop attached to the frontal
bone lateral margin, just behind the orbital margin
d) except for superior oblique, all nerve supply to muscles enter from their optic side
3) With regards to eye movement, which is INCORRECT?
a) the medial and lateral rectus evoke simple horizontal movement only
b) the inferior oblique turns the eye down and out
c) the superior rectus turns the eye up and in
d) the inferior rectors and superior oblique together produce vertical down gaze
4) Which is INCORRECT?
a) in a 4th cranial nerve paralysis, the affected eye lies slightly inturned
b) in a 6th cranial nerve palsy, the lateral rectus is affected
c) in a 3rd nerve palsy, levator palpebrae is affected
d) in an oculomotor nerve palsy the eye looks down and out
5) With regards to the retina, which is CORRECT?
a) the retina covers the inner surface of the choroids and is light sensitive everywhere except at the
corneal area
b) the optic disc contains retina that is completely free of blood vessels and is yellowish in colour
c) the optic disc and fovea are of similar size
d) the fovea contains no blood vessels or cones, but a high concentration or rods
6) The nasal septum consists of:
a) the maxilla
b) the vomer and ethmoid bones
c) the sphenoid and ethmoid bones
d) the frontal, zygoma and maxilla
e) the vomer and palatine bones
, 7) The ophthalmic artery:
a) is a branch of the ECA
b) enters through the superior orbital fissure
c) does not penetrate the meninges of the optic nerve
d) forms an anastomoses between ECA and ICA
e) is an end artery
8) Regarding the carotid sheath:
a) arisa cervicalis lies behind the IJV
b) is free to move in the neck
c) contains the vagus and phrenic ????
d) the sympathetic trunk lies outside the sheath
e) the CCA lies lateral to the IJV
9) The contents of the jugular foramen include:
a) superior petrosal sinus
b) internal jugular vein
c) vagus nerve
d) hypoglossal nerve
e) all of the above
10) The sensory innervation of the auricle of the ear includes:
a) auricolotermporal nerve (V3)
b) great auricular nerve (C2)
c) facial nerve via tympanic plexus (VII)
d) auricular branch of vagus (X)
e) all of the above
11) Regarding the abducent nerve (CN V1):
a) the nucleus lies in the medulla
b) supplies superior oblique muscle
c) enters the orbit ???? superior orbital fissure
d) has no relation to the cavernous sinus
e) carries autonomic fibres from Edinger-Westphal node
12) Regarding the face, which is INCORRECT?
a) there is no deep fascia on the face
b) the bulk of orbicularis oris muscle comes from buccinator
c) the eyelid muscles are completely supplied by CNVII
d) the parotid duct pierces buccinator opposite the third upper molar tooth
e) the facial nerve supplies the occipital belly of occipitofrontalis
13) Regarding the trigeminal nerve:
a) branches emerge from the parotid gland
b) the mandibular nerve has three cutaneous branches
c) the supratrochlear nerve supplies midline forehead and scalp
d) the infratrochlear nerve is a branch of the maxillary nerve
e) the bridge of the nose is supplied by the external nasal nerve
, 14) Which structure does NOT pass through the parotid gland?
a) retromandibular vein
b) temporozygomatic branch of facial nerve
c) cervicofacial branch of facial nerve
d) internal jugular vein
e) external carotid artery
15) Which structure is NOT in the carotid sheath?
a) internal jugular vein
b) hypoglossal nerve
c) glossopharyngeal nerve
d) external jugular vein
e) internal carotid artery
16) Which is an intrinsic muscle of the tongue?
a) superior longitudinal muscle
b) genioglossus muscle
c) hyoglossus muscle
d) styloglossus muscle
e) palatoglossus muscle
17) Which muscle abducts the vocal cords?
a) cricothyroid
b) oblique arytenoid
c) posterior cricoarytenoid
d) lateral cricoarytenoid
e) thyroepiglottic
18) Which laryngeal muscle is NOT supplied by the recurrent laryngeal nerve?
a) thyroarytenoid
b) cricothyroid
c) aryepiglottic
d) oblique arytenoid
e) posterior cricoarytenoid
19) The internal laryngeal nerve supplies:
a) sensation to the vocal folds
b) cricothyroid muscle
c) sensation above the vocal folds
d) transverse arytenoid muscle
e) sensation below the vocal folds
20) Which nerve does NOT supply skin to the upper eyelid?
a) lacrimal
b) supraorbital
c) supratrochlear
d) infratrochlear
e) infraorbital
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