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Cranial Nerves

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(Unit 5 Nervous System) Principles and animal form and fucntion Test sobre Cranial Nerves, creado por Jack Fawsitt el 18/02/2017.
Jack Fawsitt
Test por Jack Fawsitt, actualizado hace más de 1 año
Jack Fawsitt
Creado por Jack Fawsitt hace casi 8 años
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Resumen del Recurso

Pregunta 1

Pregunta
Which nerve innervates the horn in cattle and is blocked when de-horning?
Respuesta
  • Infratrochlear nerve, a branch of the ophthalmic division of the trigeminal nerve
  • Frontal nerve, a branch of the ophthalmic division of the trigeminal nerve
  • Infraorbital nerve, a branch of the maxillary division of the trigeminal nerve
  • Cornual nerve, a branch of the maxillary division of the trigeminal nerve
  • Auriculopalpebral nerve, a branch of the facial nerve

Pregunta 2

Pregunta
Which ONE of the following statements regarding the innervation of the eye and adnexa is FALSE?
Respuesta
  • The sphincter muscle of the iris receives voluntary, motor innervation via the Optic nerve (CN II).
  • The lacrimal gland receives parasympathetic innervation from the facial nerve.
  • The extraocular muscles that control the position of the eye in the orbit receive motor innervation from cranial nerves III (oculomotor), IV (trochlear) and VI (abducens).
  • The cornea receives sensory innervation via a branch of the Trigeminal nerve.

Pregunta 3

Pregunta
Concerning the motor innervation of the rostral and caudal bellies of the digastricus muscle:
Respuesta
  • Both the rostral and caudal bellies are innervated by the mylohoideus nerve a branch of the mandibular division of Trigeminal
  • The rostral belly is innervated by the digastric nerve a branch of the mandibular division of trigeminal whilst the caudal belly is innervated by the mylohyoideus nerve a branch of the facial nerve.
  • The rostral belly of digastricus is innervated by the hypoglossal nerve whilst the caudal belly is innervated by the mandibular division of Trigeminal nerve.
  • The rostral belly is innervated by the mylohoideus nerve a branch of the mandibular division of trigeminal nerve whilst the caudal belly is innervated by the digastric nerve a branch of the facial nerve.

Pregunta 4

Pregunta
All of the following are components of the auditory pathways to conscious level EXCEPT:
Respuesta
  • Cochlear division of cranial nerve VIII (vestibulocochlear)
  • Caudal colliculus
  • Cochlear nuclei
  • Medial geniculate nucleus
  • Vestibular nuclei

Pregunta 5

Pregunta
Which of the following statements concerning location of nerve cell bodies is FALSE?
Respuesta
  • Cell bodies of neurones supplying the horn in small ruminants are located in the trigeminal ganglion
  • Cell bodies of motor neurones innervating the trapezius muscle are located in the 1st 4 cervical segments of the spinal cord.
  • Cell bodies of preganglionic parasympathetic neurones supplying the stomach are located in the parasympathetic nucleus of X
  • Cell bodies of cranial nerve I (olfactory) are located in the olfactory bulb
  • Cell bodies of the neurones forming cranial nerve II (optic) are located in the ganglion cell layer of the retina

Pregunta 6

Pregunta
A cat comes into your practice for an eye examination. You test the ocular reflexes and you find: - a normal bilateral menace response - a normal direct pupillary light reflex (PLR) in the right eye but no consensual PLR in the left eye - no direct PLR in the left eye but a normal consensual PLR in the right eye - a drooping upper eyelid on the left side Where is the lesion most likely to be?
Respuesta
  • Right optic nerve (CNII)
  • Left oculomotor nerve (CNIII)
  • Right oculomotor nerve (CNIII)
  • Left lateral geniculate nucleus

Pregunta 7

Pregunta
Why would paralysis of the dorsal and ventral buccal branches of the right facial nerve (CNVII) result in marked clinical signs in the horse?
Respuesta
  • The dorsal and ventral buccal branches are very superficial
  • The horse lacks a firm muzzle and therefore facial asymmetry is more evident than in other species
  • The right dorsal and ventral buccal branches have more nerve fibres than the left
  • The horse's facial musculature is well innervated Check

Pregunta 8

Pregunta
Guttural pouch disease frequently causes neurological signs that can include cranial nerve deficits. This is because five cranial nerves pass through the walls of the guttural pouch of the horse. One of these passes through the lateral compartment and is rarely affected by disease, the other four run through the medial compartment and are commonly affected by disease. Which four cranial nerves run through the medial compartment of the guttural pouch?
Respuesta
  • Glossopharyngeal (CNIX), vagus (CNX), accessory (CNXI) and hypoglossal (CNXII) nerves
  • Facial (CNVII), vagus (CNX), accessory (CNXI) and hypoglossal (CNXII) nerves
  • Vestibulocochlear (CNVIII), glossopharyngeal (CNIV), vagus (CNX) and accessory (CNXI) nerves
  • Trigeminal (CNV), glossopharyngeal (CNIV), vagus (CNX) and accessory (CNXI) nerves

Pregunta 9

Pregunta
Which nerve does the chorda tympani (a branch of the facial nerve (CNVII) join outside of the tympanic bulla?
Respuesta
  • Pterygopalatine nerve
  • Hypoglossal nerve
  • Lingual nerve
  • Glossopharyngeal nerve

Pregunta 10

Pregunta
The image below shows a dog head from a right lateral view. The skin and superficial muscles have been removed. Which branch of the trigeminal nerve (CNV) is indicated by A?
Image:
ada9d14d-d5a6-421f-9e20-d9c5288f1bfa (image/png)
Respuesta
  • Infraorbital nerve
  • Mental nerve
  • Mandibular nerve
  • Ventral buccal branch

Pregunta 11

Pregunta
You are a vet in small animal general practice. You examine a dog and find the following: - atrophy of the left temporalis and masseter muscles - hypertrophy of the right temporalis and masseter muscles - no lateral palpebral reflex on the left lower eye tested. - normal blinking was observed during the consultation
Respuesta
  • Maxillary and mandibular nerves
  • Mandibular and facial nerves
  • Facial and ophthalmic nerves
  • Ophthalmic and maxillary nerves

Pregunta 12

Pregunta
Which cranial nerve provides motor innervation to the tongue?
Respuesta
  • Hypoglossal nerve (CNXII)
  • Facial nerve (CNVII)
  • Trigeminal nerve (CNV)
  • Glossopharyngeal nerve (CNIX)

Pregunta 13

Pregunta
Which extrinsic muscles of the eye does the oculomotor nerve (CN III) provide motor innervation to?
Respuesta
  • Medial rectus, dorsal rectus, ventral rectus, retractor bulbi muscles.
  • Lateral rectus, medial rectus, ventral rectus and ventral oblique muscles.
  • Medial rectus, dorsal rectus, ventral rectus and ventral oblique muscles
  • Lateral rectus, medial rectus, dorsal rectus and ventral rectus muscles.

Pregunta 14

Pregunta
Nerve fibres can be classified according to: distribution, tissue supplied and signal direction. Using these three categories how would the accessory nerve (CNXI) be classifed?
Respuesta
  • Special somatic efferent (SSE)
  • General somatic efferent (GSE or SE)
  • General visceral efferent (GVE or VE)
  • General somatic afferent (GSA)

Pregunta 15

Pregunta
The image below shows the canine cranium from a left ventral oblique view. What is the name of the opening from the cranium (i.e. fissure, foramen or canal) indicated by the arrow? Which cranial nerve emerges from it?
Image:
51a4218f-e2e4-40f0-be5e-98226a77bac6 (image/png)
Respuesta
  • Hypoglossal canal; hypoglossal nerve (CNXII)
  • Jugular foramen; vagus nerve (CNX)
  • Oval foramen; trigeminal nerve mandibular branch(CNV3)
  • Stylomastoid foramen; facial nerve (CNVII)

Pregunta 16

Pregunta
Which cranial nerve branch passes all the way through the middle ear cavity?
Respuesta
  • Cochlear component of the vestibulocochlear nerve
  • Chorda tympani
  • Vestibular component of the vestibulocochlear nerve
  • Major petrosal nerve

Pregunta 17

Pregunta
Which cranial nerve is the only one to attach to the brain at the pons?
Respuesta
  • Trigeminal nerve (CNV)
  • Trochlear nerve (CN IV)
  • Facial nerve (CNVII)
  • Oculomotor nerve (CNIII)

Pregunta 18

Pregunta
Which cranial nerve(s) attach to the midbrain?
Respuesta
  • CNIII & CNIV
  • CNII
  • CNV
  • CNIII, CNIV & CNV
  • CNIX & CNX

Pregunta 19

Pregunta
Which one of these cranial nerves does NOT attach to the Medulla oblongata?
Respuesta
  • CN VI
  • CN VII
  • CN VIII
  • CN IX
  • CN X
  • CN XI
  • CN XII
  • CN V

Pregunta 20

Pregunta
What are the cranial nerves which provide parasympathetic supply?
Respuesta
  • CN III, CN VII, CN IX & CN X
  • CN II, CN III, CN VII & CN X
  • CN II, CN III, CN VII & CN IX
  • CN I, CN II , CN VII & CN X

Pregunta 21

Pregunta
Which cranial nerve provides parasympathetic supply to constrict the pupil size?
Respuesta
  • CN III
  • CN VII
  • CN IX
  • CN X

Pregunta 22

Pregunta
Which cranial nerve provides parasympathetic nerve supply to the lacrimal gland and the salivary glands sublingual and mandibular?
Respuesta
  • CN VII
  • CN III
  • CN IX
  • CN X

Pregunta 23

Pregunta
Which cranial nerve provides parasympathetic nerve supply to the parotid salivary gland?
Respuesta
  • CN IX
  • CN III
  • CN VII
  • CN X

Pregunta 24

Pregunta
Which cranial nerve provides parasympathetic nerve supply to the viscera of viscera of cervical, thorax and abdomen?
Respuesta
  • CN X
  • CN III
  • CN VII
  • CN IX

Pregunta 25

Pregunta
Which cranial nerve(s) pass through the orbital fissure?
Respuesta
  • CN III, CN IV, CN V & CN VI
  • CN VII
  • CN X & CN XI
  • CN I, CN III & CN III

Pregunta 26

Pregunta
Which cranial nerve(s) pass through the jugular foramen?
Respuesta
  • CN IX, CN X & CN XI
  • CN XII
  • CN VII
  • CN III, CN IV & CN V

Pregunta 27

Pregunta
Which cranial nerve(s) passes through the hypoglossal canal?
Respuesta
  • CN XII
  • CN IX, CN X N & CN XI
  • CN VII
  • CN VIII

Pregunta 28

Pregunta
Which cranial nerve provides the sensory input for taste of the caudal 1/3 of the tongue?
Respuesta
  • CN IX
  • CN VII
  • CN X
  • CN XI

Pregunta 29

Pregunta
Which cranial nerve is the smallest in size?
Respuesta
  • CN IV
  • CN V
  • CN VI
  • CN III

Pregunta 30

Pregunta
Which cranial nerve is the largest in size?
Respuesta
  • CN V
  • CN IV
  • CN III
  • CN VI

Pregunta 31

Pregunta
The Parasympathetic pathway where Preganglionic fibres run to the cilary ganglion describes which cranial nerve?
Respuesta
  • CN III
  • CN VII
  • CN IX
  • CN X

Pregunta 32

Pregunta
The Parasympathetic pathway where Preganglionic fibres run to the pterygopalatine and mandibular ganglion describes which cranial nerve?
Respuesta
  • CN VII
  • CN III
  • CN IX
  • CN X

Pregunta 33

Pregunta
The Parasympathetic pathway where Preganglionic fibres run to the otic ganglion describes which cranial nerve?
Respuesta
  • CN IX
  • CN X
  • CN III
  • CN VII

Pregunta 34

Pregunta
The Parasympathetic pathway where Preganglionic fibres run to the terminal ganglion describes which cranial nerve?
Respuesta
  • CN X
  • CN III
  • CN VII
  • CN IX

Pregunta 35

Pregunta
Which trigeminal branch CN V provides sensory input from the cornea and upper eyelids?
Respuesta
  • CN V1 Opthalmic
  • CN V2 Maxillary
  • CN V3 Mandibular

Pregunta 36

Pregunta
Which trigeminal nerve branch CN V provides sensory input from the lower eye lids?
Respuesta
  • CN V1 Opthalmic
  • CN V2 Maxillary
  • CN V3 Mandibular

Pregunta 37

Pregunta
What cranial nerve must have a dysfunction for a ventrolateral strabismus?
Respuesta
  • CN III
  • CN IV
  • CN VI
  • CN VII

Pregunta 38

Pregunta
What cranial nerve must have a dysfunction for a extorsional strabismus?
Respuesta
  • CN IV
  • CN III
  • CN VI
  • CN VII

Pregunta 39

Pregunta
What cranial nerve must have a dysfunction for a medial strabismus?
Respuesta
  • CN VI
  • CN IV
  • CN III
  • CN VII

Pregunta 40

Pregunta
What branch of CNV arises from the rostral alar foramen?
Respuesta
  • CN V2 Maxillary
  • CN V1 Opthalmic
  • CN V3 Mandibular

Pregunta 41

Pregunta
What muscle(s) does CN IV innervate?
Respuesta
  • Dorsal oblique
  • Lateral rectus & retractor bulbi
  • Medial, ventral & dorsal rectus and the ventral oblique

Pregunta 42

Pregunta
What muscle(s) does CN VI innervate?
Respuesta
  • Lateral rectus & retractor bulbi
  • Dorsal oblique
  • Medial, dorsal & ventral rectus and the ventral oblique.

Pregunta 43

Pregunta
What muscle(s) does CN III innervate?
Respuesta
  • Medial, ventral & dorsal rectus and the ventral oblique
  • Dorsal oblique
  • Lateral rectus & retractor bulbi

Pregunta 44

Pregunta
What cranial nerve is innervates muscles for neck turning?
Respuesta
  • CN XI
  • CN XII
  • CN X
  • CN IX
  • CN VII

Pregunta 45

Pregunta
Which of the following groups of cranial nerves all contain general visceral Efferent (GVE) components?
Respuesta
  • III, VII, IX, X
  • V, VI, VII, XI
  • V, VII, IX, X, XI
  • IX, X, XI, XII
  • III, IV, VI, XII

Pregunta 46

Pregunta
The extrinsic muscles of the tongue receive motor innervation from?
Respuesta
  • Hypoglossal
  • Glossopharyngeal
  • Vagus
  • Trigeminal
  • Facial

Pregunta 47

Pregunta
Which nerve supplies motor innervation to muscles such as levator nasolabialis?
Respuesta
  • Maxillary V
  • Mental branch of mandibular V
  • Infraorbital branch of maxillary V
  • Mandibular V
  • Facial VII

Pregunta 48

Pregunta
Which branch of which nerve supplies cutaneous sensation to the chin?
Respuesta
  • Mental branch of mandibular V
  • Infraorbital branch of maxillary V
  • Auriculotemporal branch of V
  • Maxillary V
  • Facial VII

Pregunta 49

Pregunta
Which cranial nerve passes through the cribiform plate of the skull?
Respuesta
  • Optic (II)
  • Trochlear (IV)
  • Oculomotor (III)
  • Trigeminal (V)
  • Olfactory (I)

Pregunta 50

Pregunta
The upper premolars and molars are innervated by:
Respuesta
  • Auriculopalpebral (VII)
  • Facial (VII)
  • Mandibular (V)
  • Infraorbital (V)
  • Auriculotemporal (V)

Pregunta 51

Pregunta
The cornual nerve supplies sensory innervation to the bovine horn. From which nerve is it derived?
Respuesta
  • Dorsal buccal (VII)
  • Mandibular n. (V3)
  • Maxillary n. (V2)
  • Auriculopalpebral (VII)
  • Ophthalmic (V)

Pregunta 52

Pregunta
Which cranial nerve supplies sensory innervation to the larynx?
Respuesta
  • Accessory (XI)
  • Facial (VII)
  • Vagus (X)
  • Hypoglossal (XII)
  • Glossopharyngeal (IX)

Pregunta 53

Pregunta
the carotid sinus at the origin of the internal carotid artery is innervated by
Respuesta
  • Facial n (VII)
  • Vagus n (X)
  • Abducens n (VI)
  • Accessory n (XI)
  • Glossopharyngeal n (IX)

Pregunta 54

Pregunta
The cornea receives sensory innervation from the long ciliary nerves of
Respuesta
  • Maxillary n (V)
  • Oculomotor n (III)
  • Ophthalmic n (V)
  • Auriculopalpebral n (VII)
  • Dorsal buccal n (VII)
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