CSD 417 EXAM 2 QUESTIONS WITH
CORRECT ANSWERS
what are the cranial nerves in order? - ANSWER I. Olfactory
II. Optic
III. Oculomotor
IV. Trochlear
V. Trigeminal
VI. Abducens
VII. Facial
VIII. Vestibulocochlear
IX. Glossopharyngeal
X. Vagus
XI. Accessory
XII. Hypoglossal
Sensory only: smell
Only sensory nerve to not connect to the Thalamus first - ANSWER I. Olfactory nerve
Sensory only: vision - ANSWER II. Optic nerve
Motor: ocular muscles; also, iris and lens - ANSWER III. Oculomotor nerve
Motor: ocular muscles - ANSWER IV. Trochlear nerve
Sensory and motor; three branches:
,1. Ophthalmic: sensory (upper face)
2. Maxillary: sensory (middle face: teeth in maxillary arch)
3. Mandibular: sensory (lower face; e.g.: teeth in mandibular arch, TMJ) and motor
(mastication; tensor tympani muscle for acoustic reflex). - ANSWER V. Trigeminal nerve
Motor only: ocular muscles - ANSWER VI. Abducens
Motor: most of facial musculature (upper facial musculature receives bilateral
innervation; lower face is mostly unilaterally innervated); stapedius muscles (acoustic
reflex)
Sensory: taste of anterior 2/3 of tongue. - ANSWER VII. Facial
Sensory: hearing, balance (equilibrium)
Efferent: inhibition of hair cells. - ANSWER VIII. Auditory (vestibulo-cochlear)
Motor: stylopharyngeus and superior pharyngeal constrictor muscles (first part of the
pharyngeal phase of swallowing).
Sensory: taste (posterior 1/3 of tongue); touch and pain upper pharyngeal area
including the Faucial Pillars). - ANSWER IX. Glossopharyngeal
Motor portion: (a. o.: larynx, esophagus and smooth muscles in trachea and bronchi)
Recurrent laryngeal nerve: most intrinsic laryngeal muscles (except the CT)
, Superior laryngeal branch: a. o. crico-thyroid muscle (pitch mechanism)
Pharyngeal branch: second part of pharyngeal phase in swallowing, and elevation of
soft palate
(this nerve has many additional sensory and visceral functions as well)
The Vagus nerve is essential for voice and swallowing. - ANSWER X. Vagus
Motor: muscles in the neck area (e.g., sterno-cleido mastoid muscle) - ANSWER XI.
Accessory
Motor: all intrinsic and most extrinsic tongue muscles. - ANSWER XII. Hypoglossal
Blood flow is restricted to parts of the brain because of a slowly developing blockage
(thrombosis) or a sudden disruption because of a traveling embolism that clogs up an
artery. most common t type. - ANSWER Ischemic (thrombotic or embolic) stroke
what are some risk factors for ischemic strokes? - ANSWER non-modifiable:
age, males, african americans, and family history, and previous strokes.
modifiable:
atrial fibrillation, hypertension, myocardial infarction, diabetes mellitus, prior TIAs,
smoking, excessive alcohol use
In the ischemic case symptoms may develop over some time, and if so, sometimes be
preceded by this (typically last only up to 15 minutes but technically could last up to 24
hours) - ANSWER Transient Ischemic Attacks
Treatment for ischemic strokes - ANSWER Optimal blood pressure control, managing
CORRECT ANSWERS
what are the cranial nerves in order? - ANSWER I. Olfactory
II. Optic
III. Oculomotor
IV. Trochlear
V. Trigeminal
VI. Abducens
VII. Facial
VIII. Vestibulocochlear
IX. Glossopharyngeal
X. Vagus
XI. Accessory
XII. Hypoglossal
Sensory only: smell
Only sensory nerve to not connect to the Thalamus first - ANSWER I. Olfactory nerve
Sensory only: vision - ANSWER II. Optic nerve
Motor: ocular muscles; also, iris and lens - ANSWER III. Oculomotor nerve
Motor: ocular muscles - ANSWER IV. Trochlear nerve
Sensory and motor; three branches:
,1. Ophthalmic: sensory (upper face)
2. Maxillary: sensory (middle face: teeth in maxillary arch)
3. Mandibular: sensory (lower face; e.g.: teeth in mandibular arch, TMJ) and motor
(mastication; tensor tympani muscle for acoustic reflex). - ANSWER V. Trigeminal nerve
Motor only: ocular muscles - ANSWER VI. Abducens
Motor: most of facial musculature (upper facial musculature receives bilateral
innervation; lower face is mostly unilaterally innervated); stapedius muscles (acoustic
reflex)
Sensory: taste of anterior 2/3 of tongue. - ANSWER VII. Facial
Sensory: hearing, balance (equilibrium)
Efferent: inhibition of hair cells. - ANSWER VIII. Auditory (vestibulo-cochlear)
Motor: stylopharyngeus and superior pharyngeal constrictor muscles (first part of the
pharyngeal phase of swallowing).
Sensory: taste (posterior 1/3 of tongue); touch and pain upper pharyngeal area
including the Faucial Pillars). - ANSWER IX. Glossopharyngeal
Motor portion: (a. o.: larynx, esophagus and smooth muscles in trachea and bronchi)
Recurrent laryngeal nerve: most intrinsic laryngeal muscles (except the CT)
, Superior laryngeal branch: a. o. crico-thyroid muscle (pitch mechanism)
Pharyngeal branch: second part of pharyngeal phase in swallowing, and elevation of
soft palate
(this nerve has many additional sensory and visceral functions as well)
The Vagus nerve is essential for voice and swallowing. - ANSWER X. Vagus
Motor: muscles in the neck area (e.g., sterno-cleido mastoid muscle) - ANSWER XI.
Accessory
Motor: all intrinsic and most extrinsic tongue muscles. - ANSWER XII. Hypoglossal
Blood flow is restricted to parts of the brain because of a slowly developing blockage
(thrombosis) or a sudden disruption because of a traveling embolism that clogs up an
artery. most common t type. - ANSWER Ischemic (thrombotic or embolic) stroke
what are some risk factors for ischemic strokes? - ANSWER non-modifiable:
age, males, african americans, and family history, and previous strokes.
modifiable:
atrial fibrillation, hypertension, myocardial infarction, diabetes mellitus, prior TIAs,
smoking, excessive alcohol use
In the ischemic case symptoms may develop over some time, and if so, sometimes be
preceded by this (typically last only up to 15 minutes but technically could last up to 24
hours) - ANSWER Transient Ischemic Attacks
Treatment for ischemic strokes - ANSWER Optimal blood pressure control, managing
