Brainscape's Knowledge GenomeTM

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


See full index

CAPS 391 - Gross Human Anatomy > Nervous System - Cranial Nerves > Flashcards

Nervous System - Cranial Nerves Flashcards

1
Q

How many Cranial Nerves are there?

A
  • 12: Labeled CNI-CNXII
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is the name of CNI? Where is it located?

A

Name
- Olfactory
Location
- Sits on the Cribriform Plate

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

Where does the Olfactory Cranial Nerve pass through?

A
  • The cribriform plate
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Where is the cribriform plate?

A
  • on the ethmoid bone
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the function of the CNI Nerve? What is special about it?

A

Function
- Pure Sensory
- Smell
Special
- Olfactory Bulb: a sensory ganglion associated with it
- The Tract does NOT pass through the Thalamus
- Extension of the brain tissue (still called a nerve)

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

What Nerve is the Optic Nerve? Where does it exit?

A

Nerve
- CNII
Exits
- Optic Canal

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

What Function does the CN II nerve have?

A
  • Pure Sensory: Vision
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What forms the optic nerve?

A
  • Several layers of neurons in the retina converge
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Where does the CN II nerve fibers go after they converge in the Retina? What happens there?

A

Location
- Optic Chiasm
Happens
- Some fibers (about half) from each eye cross

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

What is the Optic Nerve called after it passes through the Optic Chiasm?

A
  • The optic Tract
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Where to the Optic Tracts convey visual information?

A
  • Thalamus: the lateral geniculate nucleus

- Occipital Cortex: Through Optic radiation

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

What is the name of Cranial Nerve III? Where does it start and where does it exit?

A 
Name 
- Oculomotor
Location
- Midbrain
Exits
- Superior Orbital Fissure
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the name, origin, and exit of Cranial Nerve IV?

A 
Name
- Trochlear
Origin
- Midbrain
Exits
- Superior Orbital Fissure
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the number, origin, and exit of the Trigeminal Nerve?

A 
Number
- Cranial Nerve V
Origin
- Pons
Exit
- V1: Superior Orbital Fissure
- V2: Foramen Rotundum
- V3: Foramen Ovale
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the name, origin, and exit of Cranial Nerve VI?

A 
Name
- Abducens
Origin
- Midline of Pontomedullary Sulcus
Exits
- Superior Orbital Fissure
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is the name, origin, and exit of Cranial Nerve VII

A 
Name
- Facial
Origin
- Lateral of Pontomedullary Sulcus 
Exit
- Internal Acoustic Meatus
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What is the Number, Origin, and Exit of the Vestibulocochlear Nerve?

A 
Number
- Cranial Nerve VIII
Origin
- Lateral of Pontomedullary Sulcus
Exits
- Internal Acoustic Meatus
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What is the Name, Origin, and Exit of Cranial Nerve IX?

A 
Name 
- Glossopharyngeal
Origin
- Medulla
Exit
- Jugular Foramen
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What is the Name, Origin, and Exit of Cranial Nerve X?

A 
Name 
- Vagus
Origin
- Medulla
Exit
- Jugular Foramen
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What is the Number, Origin, and Exit of the Accessory Nerve?

A 
Number 
- Cranial Nerve XI
Origin 
- Medulla
Exit
- Jugular Foramen
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What is the Name, Origin, and Exit of Cranial Nerve XII?

A 
Name 
- Hypoglossal
Origin
- Behind the Pyramid of Medulla 
Exit
- Hypoglossal Canal
22
Q

What three nerves share the same origin and exit? what are the names of the origin site and exit site?

A 
Nerves
- CN IX: Glossopharygeal
- CN X: Vagus
- CN XI: Accessory
Origin
- Medulla
Exit
- Jugular Foramen
23
Q

What two cranial nerves exit through the Internal Acoustic Meatus?

A
  • CN VII: Facial

- CN VIII: Vestibulocochlear

24
Q

What 4 Nerves exit through the Superior Orbital Fissure?

A
  • CN III: Oculomotor
  • CN IV: Trochlear
  • CN V: Trigeminal (only the V1 branch)
  • CN VI: Abducens
25
Q

What 3 Nerves have Unique Exits from the other Cranial Nerves?

A
  • CN I: Olfactory (Cribriform Plate)
  • CN II: Optic (Optic Canal)
  • CN XII: Hypoglossal (Hypoglossal Canal)

V2 and V3 of the CN V: Trigeminal Nerve have Unique exits too, but V1 does not

26
Q

What kind of nerve is the Oculomotor Nerve?

A
  • CN III: Motor and Parasympathetic
27
Q

What are the functions of the CN III Nerve?

A
  • Motor: Supplying 5 of 7 extraocular eye muscles (1 lifting eyelid / 4 eye movement muscles)
  • Parasympathetic: Supplies the iris constrictor muscle to cause Myosis
28
Q

What is the associated ganglion with the Oculomotor Nerve?

A
  • Ciliary ganglion
29
Q

What kind of nerve is the Trochlear Nerve? Function? What makes it Unique?

A

Type
- CN IV: Pure motor
Function
- Innervates the superior oblique muscle of the eye
Unique
- Only nerve that exits brainstem from the posterior aspect

30
Q

How many Branches does Cranial Nerve V have? What are they?

A
  • V1: Ophthalmic Nerve
  • V2: Maxillary Nerve
  • V3: Mandibular Nerve
31
Q

What is the associated ganglion with the Trigeminal Nerve?

A
  • CN V: Semilunar Ganglion
32
Q

What kind of nerve is the Trigeminal Nerve?

A
  • Sensory and Motor
33
Q

What is the name, type and function of the V1 branch of the Trigeminal Nerve?

A 
Name 
- Ophthalmic Nerve
Type
- Pure Sensory
Function
- Supplies sensation of the orbital cavity and sinuses
- Sensation to the front part of nose skin
- Sensation to Forehead skin
34
Q

What is the Name, Type and Function of the V2 Branch of Cranial Nerve V?

A 
Name
- Maxillary Nerve
Type
- Pure Sensory
Function
- Supplies sensation of nasal cavity and upper half of oral cavity and teeth
35
Q

What are the Name, Type, and Function of the V3 branch of the Trigeminal Nerve?

A 
Name
- Mandibular
Type
- Sensory 
- Motor
Function
- Sensation of the lower half of the oral cavity
- Pain sensation of lower jaw and tongue
- sensation of jaw skin
- motor for muscles of mastication
36
Q

What is the Type and Function of the Abducens Nerve?

A

Type
- Pure Motor
Function
- CN VI: Innervates the Lateral Rectus Muscle of the eye (abduction of eyeball)

37
Q

What nerve type is the Facial Nerve?

A
  • CN VII: Mixed Nerve (motor, sensory, and parasympathetic)
38
Q

What Motor Functions does the CN VII have?

A
  • movement of facial expression muscles (or superficial muscles of the face)
39
Q

What sensory function does the Facial Nerve Provide?

A
  • CN VII: Taste for the anterior 2/3 of the tongue
40
Q

What parasympathetic function does CN VII provide?

A
  • Facial Nerve: Salivary glands (sublingual and submandibular)
  • small glands in the nose
  • lacrimal glands (tears)
41
Q

What does the Vestibulocochlear Nerve do?

A
  • Special sensory
  • The cochlea nerve branch is for hearing
  • Vestibule nerve branch is for balance
42
Q

What Type of nerve is Cranial Nerve IX?

A

Glossopharyngeal Nerve

- Mixed Nerve: sensory, parasympathetic and a little motor

43
Q

What sensory functions does the Glossopharyngeal nerve have?

A

CN IX

  • Sensation of the posterior 1/3 of the tongue (pain, touch and taste)
  • Sensation of the pharynx
  • Sensory from Carotid Body (baroreceptors: blood pressure sensor in neck)
44
Q

What Parasympathetic function does CN IX have?

A

Glossopharyngeal Nerve

- Parotid Gland: contribute to saliva secretion

45
Q

What type of nerve is the Vagus Nerve?

A

Cranial Nerve X

- Mixed Nerve: sensory, motor, and parasympathetic (largest in body)

46
Q

What Sensory functions does cranial nerve X have?

A

Vagus Nerve

- Sensation of the Larynx and Trachea

47
Q

What motor functions does the Vagus Nerve have?

A

Cranial Nerve X

  • Pharyngeal muscle innervation
  • Laryngeal Muscle innervation
48
Q

What Parasympathetic function does the Vagus Nerve have?

A

CN X

  • Provides parasympathetic innervation for:
  • All thoracic Organs (heart and lungs)
  • Most Abdominal Organs (Liver, pancreas, stomach, small intestine, ascending colon) until 1/3 way into the transverse colon.
  • not to pelvic viscera
49
Q

What is the Type and Function of Cranial Nerve XI?

A

Accessory Nerve

  • Type: Pure Motor
  • Function: Innervates Trapezius and Sternocleidomastoid (SCM)
50
Q

What is the Type and Function of the Hypoglossal Nerve?

A

Cranial Nerve XII

  • Type: Pure Motor
  • Function: Innervates all muscles of the tongue (except one muscle)

CAPS 391 - Gross Human Anatomy (33 decks)

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