Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Gross Anatomy 4 > Cranial Fossa and Nerves > Flashcards

Cranial Fossa and Nerves Flashcards

1
Q

What is the optic nerve (CN II) an extension of?

A

Diencephalon

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

What is the nerve being highlighted?

A

Abducent nerve - CNVI

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

What is the pathway of the spinal accessory nerve (CNXI)?

A

Originates in the spinal cord

Enters foramen magnum and joins cranial root before passing through the jugular foramen

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

What nerve supplies taste to the posterior 1/3 of the tongue?

A

Glossopharyngeal CN IX

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

What nerves pass though the internal acoustic meatus?

A

CNVII - Facial nerve

CNVIII - Vestibulocochlear nerve

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

What is the route taken by the hypoglossal nerve (CNXII)?

A

Originates in the medulla oblongata (anterior to the olive)
Passes through the hypoglossal canal
Enters the root of the tongue above the hyoid

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

What do the sensory fibres of the facial nerve (CNVII) supply?

A

Supplies fibres to the auricle

Special sense of taste to the anterior 2/3rds of the tongue

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

What is the olfactory nerve an outgrowth of?

A

Telencephalon

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

What structures pass through the jugular foramen?

A

Internal jugular vein
CNIX - Glossopharyngeal nerve
CNX - Vagus nerve
CNXI - Spinal accessory nerve

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

Describe the pathway of the facial (CN VII) nerve

A

Originates in the pons

Passes through the internal acoustic meatus and into the temporal bone

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

What is this and what structure attaches to it?

A

Crista Galli

Dura Mater attaches here

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

What nerve is being highlighted?

A

Trochlear nerve - CNIV

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

Describe the route of the olfactory nerve

A

Passes from the mucosa of the nose through to the cribiform plate to synapse in the olfactory bulb
Tracts back to the prepiriform area of the amygdala

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

What is being highlighted?

A

Jugular Foramen

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

What is being highlighted?

A

Hypoglossal Canal

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

Describe the pathway of the vestibulocochlear (CN VIII) nerve?

A

Vestibular apparatus and auditory apparatus
Through the internal auditory meatus
To the pons/medulla oblongata

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What is the role of the olfactory nerve (CN I)?

A

Provides the sense of smell

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Describe the route of the optic nerve (CN II)

A

Runs from the retina through the optic canal, then forms the optic chiasm and optic tracts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What is being highlighted?

A

Cribiform plate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

In which part of the brain is the visual cortex?

A

Occipital lobe

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What are the divisions of the trigeminal nerve?

A 
CNV1 = Ophthalmic division
CNV2 = Maxillary division
CNV3 = Mandibular division
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Describe the role of CNV3?

A

Supplies sensory to the ear canal, parotid gland, lower jaw and teeth

Motor to the muscles of mastication, anterior belly of digastric, mylohyoid, tensor tympani, veli tensor palatini

23
Q

What is the role of the abducent nerve (CNVI)?

A

Motor innervation to the lateral rectus

24
Q

What are the branches of the trigeminal nerve and through which foramen do they leave the skull?

A 
CNV1 = Ophthalmic, Superior orbital fissure
CNV2 = Maxillary, Foramen rotundum
CNV3 = Mandibular, Foramen ovale
25
What are the actions of the occulomotor nerve?
Supplies somatic motor and parasympathetic innervation Motor - inferior oblique, superior rectus, inferior rectus and medial rectus, levator palpabrae Parasympathetic - sphincter pupillae and ciliary muscle
26
What passes through the hypoglossal canal?
CNXII - Hypoglossal nerve
27
What do the green and blue arrows indicate?
``` Blue = Foramen rotundum Green = Foramen ovale ```
28
What lobes of the brain lie in the middle cranial fossa?
Temporal lobes
29
What is highlighted?
Olfactory tract and bulb
30
What is this foramen?
Foramen Lacerum
31
What is being highlighted?
Foramen magnum
32
What is the pathway taken by the glossopharyngeal nerve (CN IX)?
Originates in the medulla oblongata | Passes through the jugular foramen
33
What fossa is this and what part of the brain lies here?
Posterior fossa | Cerebellum
34
What is being highlighted?
Internal acoustic meatus
35
What nerves arise from the midbrain?
Occulomotor CN VIII | Trochlear CN IV
36
What is the function of the hypoglossal nerve (CN XII)?
Motor to all the intrinsic muscles of the tongue | Motor to all extrinsic except palatoglossus
37
Through which foramen does the vagus nerve (CNX) leave the skull?
Via the jugular foramen
38
What passes through the foramen spinosum?
Middle meningeal artery
39
What are the branches of the facial nerve that supply the muscles of facial expression?
``` Temporal Zygomatic Buccal Mandibular Cervical Posterior Auricular ```
40
What nerve is highlighted?
Occulomotor - CNIII
41
What structures pass through the cavernous venous sinus?
CN III, IV and V pass in the lateral wall CN VI runs through the middle with the internal carotid artery
42
What muscles does the spinal accessory (CN XI) supply motor innervation to?
Trapezius and SCM
43
Describe the role of CNV2?
Supplies general sensory innervation to skin of cheek, lower eyelid, upper jaw and teeth, side of the nose and the mucosa of the mouth
44
What is the only cranial nerve in which all fibres cross to the oposite side?
Trochlear CN IV
45
What enters the middle cranial fossa through the foramen lacerum?
Internal carotid artery
46
Describe the pathway of the occulomotor nerve?
Arises in the midbrain Travels through the superior orbital fissure to the orbit Runs in the lateral wall of the cavernous dural venous sinus and through the annular ring
47
What is highlighted?
The middle cranial fossa
48
Describe the role of CNV1?
Supplies general sensory to the eye, lacrimal gland, eyebrow, skin of the forehead, nose.
49
What is the role of the trochlear nerve (CN IV)?
Provides motor fibres to the superior oblique muscle of the eye
50
Through which foramen does the Abducent (CNVI) pass through?
Superior orbital fissure
51
What is the foramen highlighted?
Foramen spinosum
52
What cranial nerve passes through the foramen magnum?
The spinal part of the spinal accessory nerve CNXI
53
What fossa is shown and what part of the brain sits here?
Anterior fossa | Frontal lobes of the brain
54
What foramen does the trochlear nerve (CN IV) pass through?
Superior orbital fissure to reach the orbit

Gross Anatomy 4 (14 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions