Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

NSF > Cranial Nerves > Flashcards

Cranial Nerves Flashcards

1
Q

Name the twelve cranial nerves in order.

A

Olfactory, Optic, Occulomotor, Trochlear, Trigeminal, Abducens, Facial, Vestibulocochlear, Glossopharyngeal, Vagus, Accessory, Hypoglossal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What type of nerve fibres does I Olfactory contain?

A

Autonomic afferent to the olfactory mucosa and VMO (smell)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What type of nerve fibres does II Optic contain?

A

Special somatic afferent to the retina (sight)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What type of nerve fibres does III Occulomotor contain? Which structures are innervated?

A

Somatic efferent. Innervate muscle of the eye (all but lateral rectus and dorsal oblique) and the levator palpebrae superioris (+ pupillary muscles)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What types of structures do Somatic Efferent fibres innervate?

A

Striated muscle which originates from somites

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What types of structures do Special Visceral Efferent fibres innervate?

A

Striated muscle originating from lateral plate mesoderm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Autonomic efferents innervate which structures?

A

Glands and smooth muscle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Autonomic afferents innervate which structures?

A

Endoderm (ie mucosa)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Somatic afferents innervate which structures?

A

Ectoderm (ie skin)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

This cranial nerve supplies the dorsal oblique muscle with which type of fibre?

A

Trochlear supplies somatic efferent

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Name the three main branches of the trigeminal nerve and describe the innervation of their somatic afferent fibres.

A

Opthalmic - Skin of forehead and upper eyelid
Maxillary - Skin of lower eyelid and upper jaw (+vibrissae), oral cavity.
Mandibular - Lower jaw and oral cavity mucosa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Which cranial nerves contain Special Visceral Efferent fibres?

A

Trigeminal, facial and glossopharyngeal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Which branch of the trigeminal nerve supplies somatic afferents to the nasal cavity and the turbinates?

A

Opthalmic (ethmoidal n.)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

How is the afferent innervation of the oral cavity divided?

A

Maxillary V - Palate and upper teach (via superior alveolar)
Mandibular V - Cheek mucosa, tongue and lower teeth (via inferior alveolar)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Which skeletal muscles are supplied by the trigeminal nerve?

A

Muscles of mastication - digastricus, masseter, temporalis and pterygoids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Which of the extraoccular muscles is supplied with Somatic Efferents by the VI Abducens?

A

Lateral rectus

17
Q

Which structures does the VII Facial provide Somatic Afferents to?

A

Skin of the outer ear

18
Q

What types of nerve fibre are contained within the V Trigeminal?

A

Somatic afferent, Special Visceral Efferent.

19
Q

Which key tactile structures of the head are supplied with somatic afferents via the V Trigeminal?

A

Vibrissae of the upper and lower jaw.

20
Q

The VII Facial supplies which salivary glands with AEs? What is special about its supply?

A

Mandibular, sublingual (also the lacrimal and nasal glands). The Facial supplies fibres via the major petrosal.

21
Q

Which Autonomic Afferent function is supplied by the VII Facial? What is special about the supply?

A

Taste to the rostral 2/3rds of tongue, suppied via the chorda tympani which jumps onto the lingual branch of the trigeminal to reach the tongue.

22
Q

Which muscles are supplied with Special Visceral Efferents via the VII Facial?

A

Muscles of facial expression - buccal, zygomaticus, platysma, supercilioris

23
Q

Which type of nerve fibre are contained within the VIII Vestibulocochlear?

A

Special Somatic Afferent - for hearing and balance.

24
Q

Which types of nerve fibres are contained within the IX Glossopharyngeal?

A

Somatic Afferent - inner ear and pharynx
Special Visceral Efferent - Stylopharygeus
Autonomic Afferent - Taste to the Caudal 1/3 of the tongue and pharynx
Autonomic Efferent - Parotid salivary gland

25
Q

Which type of structures does the XII Hypoglossal supply? Which type of nerve fibres?

A

Muscles of the tongue (somite origin) so somatic efferent

26
Q

Extrinsic muscles of the forelimb are supplied with which nerve fibres by the XI Accessory?

A

Somatic Efferent

27
Q

Laryngeal and Pharyngeal muscles originate from which embryonic structure? They are therefore supplied with which type of nerve fibres from which cranial nerve?

A

Originate from lateral plate mesoderm. They are supplied with Special Visceral Efferents from the Vagal-Accessory Complex.

28
Q

Which cranial nerve supplies the smooth muscle and glands? What type of nerve fibres are provided?

A

Autonomic Efferents are supplied by the Vagus nerve

NSF (14 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions