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Cranial nerves

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Cranial Nerves Anatomy 1st Year PMU

Cranial Nerves Anatomy 1st Year PMU

Question 1 of 37

1

The optic nerve is formed hy the axons of the ganglion cells in the retina.

Select one of the following:

  • True
  • False

Explanation

Question 2 of 37

1

The vagus nerve is seeretomotor to the glands of the stomach.

Select one of the following:

  • True
  • False

Explanation

Question 3 of 37

1

The ophthalmic division of the trigeminal nerve lies on the medial wall of the cavernous sinus.

Select one of the following:

  • True
  • False

Explanation

Question 4 of 37

1

Abducent nerve is a pure somatomotor nerve.

Select one of the following:

  • True
  • False

Explanation

Question 5 of 37

1

Ganglion vestibulare is located in the depth of meatus acusticus internus.

Select one of the following:

  • True
  • False

Explanation

Question 6 of 37

1

The hypoglossal nerve has a nucleus in the floor of the fourth ventricle.

Select one of the following:

  • True
  • False

Explanation

Question 7 of 37

1

The vestibular part of the vestibulocochlear (eighth cranial) nerve is entirely sensory.

Select one of the following:

  • True
  • False

Explanation

Question 8 of 37

1

The vagus nerve is entirely motor nerve.

Select one of the following:

  • True
  • False

Explanation

Question 9 of 37

1

The vestibular part of the vestibulocochlear (eighth cranial) nerve has first neurons which are pseudounipolar.

Select one of the following:

  • True
  • False

Explanation

Question 10 of 37

1

The ciliary muscle is supplied by the oculomotor nerve.

Select one of the following:

  • True
  • False

Explanation

Question 11 of 37

1

The facial nerve

Select one of the following:

  • lies medial to the styloid process

  • is deep to the retromandibular (posterior facial) vein in the parotid gland

  • leaves the skull through the stylomastoid foramen

  • contains parasympathetic nerve fibers which innervate the parotid gland.

Explanation

Question 12 of 37

1

Which ofthe following cranial nerves can cause movement of trapezius muscle?

Select one of the following:

  • IV

  • VII

  • X

  • Xl

Explanation

Question 13 of 37

1

Which ofthe cranial nerve nuclei below is somatomotor (supply striated muscles)?

Select one of the following:

  • nucleus dorsalis n.vagi

  • nucleus n. hypoglossi

  • nucleus spinalis n. trigemini

  • nucleus solitarius

  • n.salivatorius caudalis

Explanation

Question 14 of 37

1

The superior orbital fissure transmits all of the following EXCEPT

Select one of the following:

  • ophthalmic division of the trigeminal nerve

  • maxillary division of the trigeminal nerve

  • oculomotor nerve

  • trochlear nerve

  • abducens nerve

Explanation

Question 15 of 37

1

Which of the following nerves is NOT contained within the cavernous sinus?

Select one of the following:

  • optic nerve

  • oculomotor nerve

  • trochlear nerve

  • trigeminal nerve (specifically the ophthalmic division)

  • abducent nerve

Explanation

Question 16 of 37

1

Which of the following is NOT a branch of the facial nerve?

Select one of the following:

  • temporal

  • zygomatic

  • buccal

  • mental

  • cervical

Explanation

Question 17 of 37

1

Which of the following does NOT contribute to innervation of the dura mater?

Select one of the following:

  • ophthalmic division ofthe trigeminal nerve

  • maxillary division ofthe trigeminal nerve

  • mandibular division of the trigeminal nerve

  • facial nerve

  • C1, C2, and C3

Explanation

Question 18 of 37

1

Which of the following cranial nerves exits the brainstem via the preolivary sulcus?

Select one of the following:

  • abducens (VI)

  • facial (VII)

  • hypoglossal (XII)

  • vagus (X)

  • trigeminal (V)

Explanation

Question 19 of 37

1

Which of the following cranial nerves exits the posterior (dorsal) aspect of the brainstem?

Select one of the following:

  • abducens (VI)

  • hypoglossal (XII)

  • trigeminal (V)

  • trochlear (IV)

  • vestibulocochlear (VIII)

Explanation

Question 20 of 37

1

A lesion involving the root of which of the following nerves would most likely have an effect on the gag (pharyngeal reflex) reflex?

Select one of the following:

  • accessory

  • facial

  • glossopharyngeal

  • hypoglossal

  • trigeminal

Explanation

Question 21 of 37

5

The oculomotor nerve

Select one or more of the following:

  • has its nucleus in the midbrain.

  • lies between the posterior cerebral and superior cerebellar arteries.

  • contains postganglionic parasympathetic nerve fibres.

  • supplies the levator palpebrae superioris muscle with sympathetic nerve fibres.

  • supplies the ciliary muscle.

Explanation

Question 22 of 37

5

The glossopharyngeal nerve

Select one or more of the following:

  • is entirely sensory.

  • contains fibres associated with taste from the posterior third of the tongue.

  • is the only sensory nerve from the mucous membrane of the pharynx.

  • leaves the skull through the jugular foramen.

  • is connected with the glossopharyngeal nucleus in the floor of the fourth ventricle.

Explanation

Question 23 of 37

5

The hypoglossal nerve

Select one or more of the following:

  • supplies all the extrinsic muscles of the tongue.

  • has a nucleus in the floor of the fourth ventricle.

  • emerges from the hindbrain lateral to the pyramid.

  • leaves the skull through a canal (foramen) in the occipital bone.

  • lies between the external and internal carotid arteries.

Explanation

Question 24 of 37

5

The vestibular part of the vestibulocochlear (eighth cranial) nerve

Select one or more of the following:

  • is entirely sensory

  • is connected through its nuclei with the cerebellar hemisphere mainly of the opposite side

  • has first neurons which are pseudounipolar

  • has a ganglion which lies in the vestibule of the internal ear

  • is connected through its nuclei and the medial longitudinal tract with the motor nucleus of the facial nerve.

Explanation

Question 25 of 37

5

The Cranial accessory nerve

Select one or more of the following:

  • Is the main nerve supply of the muscles of the pharynx.

  • Joins the vagus above jugular foramen.

  • Contains motor sensory fibres from the larynx.

  • Contains motor fibres from cell bodies forming a nucleus in the pons

  • Emerges from the hindbrain lateral to the olive.

Explanation

Question 26 of 37

5

The facial nerve

Select one or more of the following:

  • contains parasympathetic fibres supplying the lacrimal gland.

  • is deep to the external carotid artery in the parotid gland.

  • supplies the muscle which closes the eye of the same side

  • runs between the semicircular canals and cochlea.

  • emerges from the brain at the lower border of the pons.
    lateral to the vestibulocochlear (eighth cranial) nerve.

Explanation

Question 27 of 37

5

The vagus nerve

Select one or more of the following:

  • has a. motor nucleus in the floor of the fourth ventricle medial to the nucleus of the hypoglossal nerve.

  • emerges from the medulla oblongata medial to the olive.

  • contains taste fibres.

  • has cardiac branches originating only in the thorax.

  • leaves the skull through the jugular foramen.

Explanation

Question 28 of 37

5

The abducent nerve

Select one or more of the following:

  • has a nucleus which lies in the floor of the fourth ventricle.

  • has part of its course in the posterior cranial fossa.

  • is lateral to the internal carotid artery.

  • enters the orbit through the tendinous ring at the back of the orbit.

  • supplies the lateral rectus muscle.

Explanation

Question 29 of 37

5

The ophthalmic division of the trigeminal nerve

Select one or more of the following:

  • lies on the medial wall of the cavernous sinus.

  • has fibres which end in the upper part of the descending(spinal) nucleus of the trigeminal nerve.

  • supplies the skin of the lower eyelid.

  • supplies the skin of the side of side nose.

  • is sensory to the cornea.

Explanation

Question 30 of 37

5

The Hypoglossal nerve

Select one or more of the following:

  • contains fibres supplying some of the muscles attached to the hyoid bone.

  • lies deep to the hyoglossus muscle.

  • after emerging from the skull lies medial to the vagus nerve.

  • supplies the anterior belly of the digastric muscle.

  • is similar to the anterior roots of a spinal nerves

Explanation

Question 31 of 37

6

Select from the dropdown lists to complete the text.

Match each description to the appropriate nerve
A. n. glossopharyngeus ( 1, 2, 3, 4, 5, none )
B n. accessorius ( 5, 1, 2, 3, 4, none )
C. n. trigeminus ( none, 1, 2, 3, 4, 5 )
D. n. facialis ( 2, 1, 3, 4, 5, none )
E. n. vagus ( 3, 1, 2, 4, 5, none ), ( 4, 1, 2, 3, 5, none )

1. innervates glandula parotis
2. provides efferent ramus of the corneal reflex
3. provides efferent ramus of vomiting reflex
4. innervates infratentorial dura mater
5. is a purely motor nerve

Explanation

Question 32 of 37

5

Select from the dropdown lists to complete the text.

Connect each anatomical structure with the corresponding foramen or fissura
A. foramen jugulare ( 4, 1, 2, 3, 5 )
B. foramen lacerum ( 5, 1, 2, 3, 4 )
C. foramen rotundum ( 3, 1, 2, 4, 5 )
D. foramen spinosum ( 1, 2, 3, 4, 5 )
E. foramen stylomastoideum ( 2, 1, 3, 4, 5 )

1. a. meningea media
2. n. facialis
3. n. maxillaris
4. nn. IX, X, XI
5. n. petrosus major

Explanation

Question 33 of 37

4

Select from the dropdown lists to complete the text.

Connect each ganglion with the relevant canial nerve from which its receives preganglionic parasympathetic fibers
A. n. petrosus major ( 2, 1, 3, 4 )
B. ramus inferior n. oculomotorius ( 1, 2, 3, 4 )
C. chorda tympani ( 3, 1, 2, 4 )
D. n. petrosus minor ( 4, 1, 2, 3 )

1. ganglion ciliare
2. ganglion pterygopalatinum
3. ganglion submandibulare
4. ganglion oticum

Explanation

Question 34 of 37

6

Select from the dropdown lists to complete the text.

Through which of the following A to F do the structures 1 to 6 go?
A. superior orbital fissure ( 3, none, 1, 2, 4, 5, 6 )
B. foramen lacerum ( none, 1, 2, 3, 4, 5, 6 )
C. foramen spinosum ( none, 1, 2, 3, 4, 5, 6 )
D. optic canal (foramen) ( 2, 1, 3, 4, 5, 6 )
E. foramen rotundum ( 1, 2, 3, 4, 5, 6 )
F. none of these ( 4, 1, 2, 3, 5, 6 ), ( 5, none, 1, 2, 3, 4, 6 ), ( 6, none, 1, 2, 3, 4, 5 )

1. maxillary nerve
2. ophthalmic artery
3. nasociliary nerve
4. internal carotid artery
5. internal jugular vein
6. mandibular nerve

Explanation

Question 35 of 37

6

Select from the dropdown lists to complete the text.

Which of the following A to F supplis the structures 1 to 6?
A. ophthalmic nerve ( 5, 1, 2, 3, 4, none )
B. facial nerve ( 3, none, 1, 2, 4, 5, 6 ),( 6, none, 1, 2, 3, 4, 5 )
C hypoglossal nerve ( none, 1, 2, 3, 4, 5, 6 )
D mandibular nerve ( 2, 1, 3, 4, 5, 6, none )
E. maxillary nerve ( 1, 2, 3, 4, 5, 6, none )
F. none of these ( 4, 1, 2, 3, 5, 6, none )

1. upper teeth
2. masseter muscle
3. platysma muscle
4. palatoglossus muscle
5. cornea
6. taste buds of the anterior two-thirds of the tongue

Explanation

Question 36 of 37

5

Select from the dropdown lists to complete the text.

Match the corresponding structures:
A. n.maxiliaris ( 2, 1, 3, 4, 5 )
B. n.mandibularis ( 3, 1, 2, 4, 5 )
C. n.oplithalmicus ( 1, 2, 3, 4, 5 )
D. n.facialis ( 5, 1, 2, 3, 4 )
E. n.vagus ( 4, 1, 2, 3, 5 )

1. n.frontalis
2. n.zygomaticus
3. n.auriculotemporalis
4. n.laryngeus superior
5. chorda tympani

Explanation

Question 37 of 37

1

Select from the dropdown lists to complete the text.

Match the corresponding structures:
A. n. glossopharyngeus ( 3, 1, 2, 4, 5, 6 )
B. n. abducens ( 6, 1, 2, 3, 4, 5 )
C. n. trigeminus ( 2, 1, 3, 4, 5, 6 )
D. n. facialis ( 1, 2, 3, 4, 5, 6 )
E. n. vagus trochlearis ( 4, 1, 2, 3, 5, 6 )
F. n. trochlearis ( 5, 1, 2, 3, 4, 6 )

1. muscles of facial expression
2. muscles of mastication
3. glandula parotis
4. sensory supply of laryngeal cavity
5. m. obliquus superior
6. m. rectus lateralis

Explanation

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