Anatomy of Cranial Nerves: Clinical Testing

Description

Anatomy of Cranial Nerves: Clinical Testing given by Luke Reid on 29/08/2018
Matthew Coulson
Quiz by Matthew Coulson, updated more than 1 year ago
Matthew Coulson
Created by Matthew Coulson over 5 years ago
53
2

Resource summary

Question 1

Question
The [blank_start]intracranial[blank_end] part of the cranial nerve course is the part between the point of connection with the CNS and that nerve's respective foramen in the base of the skull.
Answer
  • intracranial

Question 2

Question
The cranial foramina of the olfactory nerve is the [blank_start]cribriform[blank_end] plate of the [blank_start]ethmoid[blank_end] bone
Answer
  • cribriform
  • ethmoid

Question 3

Question
Which cranial nerve is the only nerve in the body to have direct contact with the outside world?
Answer
  • The olfactory nerve
  • The optic nerve
  • The trochlear nerve
  • The hypoglossal nerve

Question 4

Question
The cranial foramina of the optic nerve is called the ...
Answer
  • Optic fissure
  • Optic tract
  • Optic canal

Question 5

Question
In order to test a patient's visual acuity (optic nerve), they should be asked to read out a series of letters on a [blank_start]Snellen[blank_end] chart
Answer
  • Snellen

Question 6

Question
Testing the optic nerve's sensitivity to colour in clinic should be achieved by using ...
Answer
  • Ishihara plates
  • Fundoscopy
  • Pupillary light reflexes

Question 7

Question
Where is the connection of the Oculomotor nerve to the CNS?
Answer
  • The Mesencephalon of the Midbrain
  • The Mesencephalon of the Pons
  • The Myelencephalon of the Medulla
  • The Myelencephalon of the Midbrain

Question 8

Question
The cranial foramina of the oculomotor nerve is called the [blank_start]superior orbital fissure[blank_end]
Answer
  • superior orbital fissure

Question 9

Question
Using a light to check for pupillary constriction is testing which aspect of the oculomotor nerve?
Answer
  • Visceral afferent
  • Parasympathetic
  • Sympathetic

Question 10

Question
The oculomotor nerve innervates all extraocular muscles apart from ...
Answer
  • Superior rectus
  • Inferior rectus
  • Medial rectus
  • Lateral Rectus
  • Superior Oblique
  • Inferior Oblique

Question 11

Question
Which of the following cranial nerves pass through the superior orbital fissure?
Answer
  • Optic nerve (CNII)
  • Oculomotor nerve (CNIII)
  • Trochlear nerve (CNIV)
  • Ophthalmic Division of Trigeminal nerve (CNV1)
  • Maxillary Division of Trigeminal nerve (CNV2)
  • Mandibular Division of Trigeminal nerve (CNV3)
  • Abducens nerve

Question 12

Question
Cranial nerves III, IV & VI can all be done by asking a patient to do the 'H test', whereby they move their eye as if to draw the letter H. This tests all 6 extraocular muscles. Which extraocular muscle is associated with... The Trochlear nerve: [blank_start]Superior oblique[blank_end] The Abducens nerve: [blank_start]Lateral rectus[blank_end]
Answer
  • Superior oblique
  • Lateral rectus

Question 13

Question
Which cranial nerves pass through the internal acoustic meatus?
Answer
  • Facial nerve (CNVII)
  • Vestibulocochlear nerve (CNVIII)
  • Glossopharyngeal nerve (CNIX)
  • Vagus nerve (CNX)
  • Spinal accessory nerve (CNXI)

Question 14

Question
The [blank_start]Vestibulocochlear[blank_end] nerve is tested clinically by means of Rinnie & Weber Tests. (give name of nerve, not number)
Answer
  • Vestibulocochlear

Question 15

Question
The spinal accessory nerve only innervates muscles of the [blank_start]investing[blank_end] fascia. This fascia comprises two muscles, the [blank_start]sternocleidomastoid[blank_end] and the [blank_start]trapezius[blank_end]. (give in alphabetical order)
Answer
  • investing
  • sternocleidomastoid
  • trapezius

Question 16

Question
In terms of the spinal accessory nerve, which clinical action would best test the functionality of the trapezius?
Answer
  • Resisted abduction
  • Resisted adduction
  • Shrugging of shoulders

Question 17

Question
In terms of the spinal accessory nerve, which action would best test the functionality of the sternocleidomastoid?
Answer
  • Rotating the head side to side (looking to either side)
  • Shrugging shoulders
  • Resisted Abduction

Question 18

Question
The hypoglossal nerve leaves the cranial vault via the [blank_start]hypoglossal[blank_end] canal
Answer
  • hypoglossal

Question 19

Question
How is the hypoglossal nerve clinically tested?
Answer
  • Ask the patient to stick their tongue straight out
  • Ask the patient to move their tongue to the roof of their mouth, side to side then to the bottom of their mouth
  • Ask the patient to swallow a small gulp of water

Question 20

Question
Which of the tongue muscles is not innervated by the hypoglossal nerve? [blank_start]Palatoglossus[blank_end]
Answer
  • Palatoglossus

Question 21

Question
Upon clinical testing of the Hypoglossal nerves, a unilateral nerve pathology would result in the tongue tip pointing towards the side of the injured nerve.
Answer
  • True
  • False

Question 22

Question
All of the Trigeminal branches have sensory fibres. Which of the three also has motor fibres?
Answer
  • The Ophthalmic Division (CNV1)
  • The Maxillary Division (CNV2)
  • The Mandibular Division (CNV3)

Question 23

Question
Which Trigeminal nerve branch leaves by which cranial foramina? The Superior Orbital Fissure: [blank_start]Ophthalmic Division (CNV1)[blank_end] The Foramen Rotundum: [blank_start]Maxillary Division (CNV2)[blank_end] The Foramen Ovale: [blank_start]Mandibular Division (CNV3)[blank_end]
Answer
  • Ophthalmic Division (CNV1)
  • Maxillary Division (CNV2)
  • Mandibular Division (CNV3)

Question 24

Question
The motor aspect of CNV3 innervates the muscles of mastication. Label them on the diagram below (forget about the black lines)
Answer
  • Temporalis
  • Masseter
  • Medial Pterygoid
  • Lateral Pterygoid

Question 25

Question
Which of the muscles of mastication facilitates the opening of the jaw?
Answer
  • Temporalis
  • Masseter
  • Medial Pterygoid
  • Lateral Pterygoid

Question 26

Question
The motor fibres of CNV3 also innervate a muscle of the middle ear, called the [blank_start]tensor tympani[blank_end]
Answer
  • tensor tympani

Question 27

Question
In terms of its cranial foramen, the facial nerve enters via the internal acoustic meatus but actually leaves the cranial vault vai the [blank_start]stylomastoid[blank_end] foramen
Answer
  • stylomastoid

Question 28

Question
Which cranial nerve innervates the stapedius (smallest skeletal muscle in the body)?
Answer
  • CNVI
  • CNVII
  • CNVIII

Question 29

Question
Which cranial nerve can be tested by the following actions: - Raise eyebrows - Close eyes tightly - Smile - Puff out cheeks and hold air
Answer
  • Facial nerve
  • Vestibulocochlear nerve
  • Mandibular branch of Trigeminal nerve
  • Vagus nerve

Question 30

Question
The Glossopharyngeal nerve, Vagus nerve and Spinal Accessory nerve all leave the cranial vault via the [blank_start]jugular[blank_end] foramen
Answer
  • jugular

Question 31

Question
Which cranial nerve is testable by eliciting the gag reflex?
Answer
  • Mandibular division of Trigeminal nerve
  • Glossopharyngeal nerve
  • Vagus nerve
  • Hypoglossal nerve

Question 32

Question
The Vagus nerve descends in the body as part of the [blank_start]carotid[blank_end] sheath.
Answer
  • carotid

Question 33

Question
The left recurrent laryngeal nerve curves under the [blank_start]arch of the aorta[blank_end] The right recurrent laryngeal nerve curves under the [blank_start]right subclavian artery[blank_end]
Answer
  • arch of the aorta
  • right subclavian artery

Question 34

Question
One method of testing the Vagus nerve is by asking the patient to open their mouth and say 'ahhhhh'. A normal test owuld see the uvula lift straight up in the midline. In the case of a unilateral vagus nerve insult, would the uvula move towards or away from the non-functioning side?
Answer
  • The Uvula would move towards the non-functioning side
  • The Uvula would move away from the non-functioning side

Question 35

Question
Which 2 of the following tests would also successfully test the functionality of the vagus nerve?
Answer
  • Asking the patient to swallow a small amount of water
  • Asking the patient to say a few sentences
  • Asking the patient to stick their stick out
  • Asking the patient to blink 5 times

Question 36

Question
Which division of CNV is the only division to be both Sensory and Motor?
Answer
  • CNV1
  • CNV2
  • CNV3

Question 37

Question
Which muscle of the inner ear is supplied by the mandibular nerve (CNV3)? [blank_start]Tensor Tympani[blank_end]
Answer
  • Tensor Tympani

Question 38

Question
Name the four muscles of mastication in alphabetical order: [blank_start]Lateral Pterygoid[blank_end] [blank_start]Masseter[blank_end] [blank_start]Medial Pterygoid[blank_end] [blank_start]Temporalis[blank_end] Which nerve supplies all of these muscles? The [blank_start]Mandibular[blank_end] Nerve
Answer
  • Lateral Pterygoid
  • Masseter
  • Medial Pterygoid
  • Temporalis
  • Mandibular

Question 39

Question
The Corneal Reflex is Mediated by which division of the Trigeminal Nerve?
Answer
  • CNV1
  • CNV2
  • CNV3

Question 40

Question
The medial meningeal artery leaves the skull via the foramen [blank_start]spinosum[blank_end]
Answer
  • spinosum

Question 41

Question
What are the contents of the carotid sheath in alphabetical order? [blank_start]Common Carotid Artery[blank_end] [blank_start]Internal Jugular Vein[blank_end] [blank_start]Vagus Nerve[blank_end]
Answer
  • Vagus Nerve
  • Internal Jugular Vein
  • Common Carotid Artery
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