ANATOMY
34
Head & Neck – Nerves
1.
Gag reflex
a.
Vagus for efferent and afferent
F
b.
Glossopharyngeal for afferent, vagus for efferent
T - p383Lasts
c.
Hypoglossal for afferent, vagus for efferent
F
d.
Maxillary for afferent, vagus for efferent
F
e.
The glottis is closed
F - it is elevation of the soft palate and contraction of
pharyngeal muscles p383NM
f.
it is mediated by vagal receptors
T - glossopharyngeal are afferents, vagus is efferent
2.
The afferent path of the sneeze reflex is mediated by the
a.
ophthalmic nerve
T - Nothing specific in any fucking book or internet re afferent pathway
BUT p1017 NM: Superior portion of mucosa from ophthalmic nerve,
inferior portion from maxillary nerve...saunders agrees
b.
maxillary nerve
T - see above
c.
mandibular nerve
F
d.
vagus nerve
F
e.
glossopharyngeal nerve
F
3.
Nerve and face/muscle pairings
a.
Levator palpebrae and CN VII
F - CNIII occulomotor
b.
Superior oblique and CN IV
T
4.
Regarding the optic pathways p971 NM
a.
combined inferior rectus and superior oblique gives
lateral gaze
F - gives direct downward gaze
b.
Abducent paralysis makes eye turn down and out
F - Makes it turn in
c.
Superior rectus makes eye turn up and out
F - up and in
d.
Trochlear paralysis, eye cannot look downwards when
turned out
F - Cannot look down when eye is turned in apparently p397 Lasts
e.
Combined superior rectus and inferior oblique causes
vertical upward gaze
T
f.
superior oblique and inferior rectus move the eye
downwards
T
g.
superior oblique action in full abduction is minimal
F
h.
SR and SO move the eye vertically upwards (? or down) F - Doesn’t make sense should be SR+IO = vertically up
5.
After an operation for tonsillectomy, a patient complains of
loss of taste from the posterior tongue, which
nerve is damaged
a.
Hypoglossal
F
b.
Glossopharangeal
T
c.
Lingual
F
6.
Which is a branch of the mandibular nerve p1096 old Moore
a.
Zygomaticotemporal
F - maxillary nerve
b.
Infraorbital
F – maxillary nerve
c.
Infratrochlear
T - from ophthalmic branch of CNV but not in book
7.
Which nerve is contained within the carotid sheath?
a.
Vagus
T
8.
Which recieves afferents in the sneeze reflex
a.
Otic ganglion
F
b.
Trigeminal ganglion
T - Google says this one….
c.
Ciliary ganglion
F
