Topic 8 Revision Questions + some study guide Flashcards Preview

BMS topics 7-10 > Topic 8 Revision Questions + some study guide > Flashcards

Flashcards in Topic 8 Revision Questions + some study guide Deck (38):
1

Which nerve innervates muscles of mastication and the tensor veli palatini, and communicates sensation from the face, mouth, theeth, mucosal lining and tongue?

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V - Trigeminal nerve. 

3 branches: 

V1- Opthalmic branch,

V2 Maxillary branch

V3 Mandibular branch 

2

Which cranial nerve innervates muscles of facial expression and sensory to anterior 2/3 of the tongue?

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VII - Facial Nerve 

3

Which cranial nerve transmits auditory and balance sensations? 

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VIII - Vestibulocochlear 

4

Which nerve serves the posterior tongue taste receptors, somatic sense from the tongue, fauces, pharynx, and Eustachian tube? 

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IX - glossopharyngeal nerve 

5

Which nerve transmits:

Somatic sensation of pain, touch and temperature from the region of the ear drum, as well as pain sense from pharynx, larynx, esophagus and many other regions.

Motor innervation for the intrinsic muscles of the larynx:

 

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X - Vagus nerve 

6

Which cranial nerve innervates the sternocleidomastoid and trapezius muscles, and collaborates with the vagus in the activation of palatal, laryngeal, and pharyngeal muscles?

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XI - Accessory nerve 

7

Which nerve innervates the muscles of the tongue with the exception of the palatoglossus? 

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XII Hypoglossal 

8

 

Identify the sylomastoid foramen on this diagram, and which nerve passes through it. 

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VII - Facial 

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9

Identify the foramen ovale, and which nerve passes through it. 

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Foramen ovale

Trigeminal, mandibular branch  V3

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10

Identify the foramen magnum, and which cranial nerve passes through it. 

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Accessory nerve XI

 

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11

Identify the foramen indicated, and which cranial nerves pass through it. 

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Jugular foramen. 

IX - Glossopharyngeal

X - Vagus

XI - Accessory 

12

Identify the foramen indicated, and which cranial nerve passes through it. 

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Foramen rotundum

Trigeminal nerve, maxillary branch V2

13

Identify the foramen indicated, and which cranial nerve passes through it: 

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Hypoglossal Canal,

XII - Hypoglossal nerve 

14

Identify the foramen indicated, and which cranial nerves pass through it: 

 

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Internal Auditory Meatus:

VII - Facial

VIII - Vestibulcochlear 

15

Identify the foramen indicated, and which nerve passes through it: 

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Superior Orbital Fissure

Trigeminal nerve, opthalmic nerve V1

16

What would be the effects of lesions to CN V? 

Damage to the whole nerve would cause loss of general sensation from that side of face, as well as paralysis of the TMJ muscles, mylohyoid, anterior digastric, tensor veli palatini and tensor tympani. 

17

What would be the effects of damage to CN VII? 

VII - Facial nerve

Muscles of facial expression would be paralysed, loss of taste sensation from anterior tongue. *

 

*technical nerve, whith some fibres crossing over. If question doesn't specify where damage is, just assume it is after cross over. As a rule, there will not be technical questions in the exam about cross over. 

18

What would be the effects of damage to CN IX?

IX - Glossopharyngeal 

Loss of taste and general sensation from posteror tongue, loss of general sensation from middle ear, audotry tube, and pharynx, paralysis of stylophanryngeaus, parotid gland (so reduced saliva). All on same side as damaged nerve. 

19

What would be the effects of damage to CN X? 

X - Vagus nerve 

-Loss of taste from root of tongue and epiglottis,

-loss of general and visceral sensation from inferior larynx, pharynx, thoracic and abdominal organs,

-some paralysis of muscles of soft palate, pharynx and intrinsic laryngeal muscles. 

20

What would be the effects of damage to CN XI?

XI - Accessory nerve

Some paralysis of soft palate and pharynx muscles.

 

21

Which two foramina do CN VII pass through?

Stylomastoid foramen

Internal Auditory Meatus 

 

22

When we say that a cranial nerve is 'motor' what does this mean?

 

Motor – this is information travelling from the CNS to muscles and some types of glands, and controls movement (and some glandular secretions). Motor nerves do not travel to any other types of tissues. Motor nerve fibres may be: 

- Voluntary (somatic) motor – controlling voluntary movement of skeletal muscles; 

- Involuntary (autonomic) motor – controlling movement of cardiac and smooth muscle, and some glands. The two subtypes of autonomic motor fibres are parasympathetic (control normal everyday function), and sympathetic (control stressful responses). 

23

What would be the effects of damage to CN XII?

XII - Hypoglossal 

Paralysis of intrinsic and extrinsic tongue muscles, and thyrohyoid and geniohyoid muscles (all on same side as nerve damage). 

24

Which cranial nerve carries genearl sensation from the tympanic membrane? 

The glossopharyngeal nerve (IX) also senses blood pressure and chemistry changes in the carotid sinus. There is also a sensory branch called the tympanic nerve carrying general sensory information from the tympanic membrane.

25

What is the Internal Auditory Meatus?

The internal auditory meatus is a canal within the petrous part of the temporal bone of the skull between the posterior cranial fossa and the inner ear.

26

What is the difference between visceral sensation and general sensation?

 

General sensory – fibres transmit general sensory (e.g. touch, pressure, pain, temperature) information from the skin and mucous membranes. We are usually consciously aware of these sensations; 

• Visceral sensory – fibres transmit visceral sensations (e.g. pressure, pain, sometimes heat) from deep structures. We are often not consciously aware of these sensations; 

27

Which cranial nerve supplies the parotid gland?

 

Glossopharyngeal IX

28

Name the branches of the Facial nerve: 

 

• Temporal 

• Zygomatic 

• Buccal 

• Marginal Mandibular 

• Cervical 

The Zoo Bought Many More Cars 

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29

Describe sensory and motor innervation of the tongue. Which cranial nerves are involved: for which functions (sensory/motor), for which muscles, to which portions of the tongue. 

 

 

30

Which cranial nerve is involved in hearing? What is another function of this nerve?

31

If you don't chew something properly, and you swallow a bigger bolus than normal: you can feel it in your oropharynx. Which cranial nerve is responsible for this sensation?

32

Which cranial nerve supplies the intrinsic laryngeal muscles?

33

Which cranial nerve supplies the intrinsic tongue muscles?

34

What is the function of the Accessory nerve?

35

Which cranial nerve supplies the thyrohyoid muscle?

36

Which are the cranial nerves involved in speech, swallowing and hearing? 

 • Trigeminal (V)

 • Facial (VII)

 • Vestibulocochlear (VIII)

 • Glossopharyngeal (IX)

 • Vagus (X)

 • Accessory (XI)

 • Hypoglossal (XII)

37

Which cranial nerve supplies the lacrimal glands? Is this sensory, motor, autonomic or what?

 Facial nerve VII.

Autonomic motor, -Parasympathetic  lacrimal (tear) glands

38