Cranial Nerves Syed Flashcards
1
Q
List the Cranial Nerves
A
Oh Once One Takes The Anatomy Final, Very Good Vacations Are Heavenly
Olfactory Nerve Optic Nerve Oculomotor Nerve Trochlear Nerve Trigeminal Nerve Abducens Nerve Facial Nerve Vestibulochochlear Nerve Glossopharyngeal Nerve Vagus Nerve Accessory Nerve Hypoglossal Nerve
2
Q
Olfactory Nerve
- List CN
- List the holes (Foramen)
- Modality
- Function
A
- CN I
- Cribiriform plate
Modality - Special Sensory (special afferent)
Function - Sensation of smell
3
Q
Optic Nerve
- List CN
- List the holes (Foramen)
- Modality
- Function
A
- CN II
- Optic Canal
Modality - Special Sensory (special afferent)
Function - To convey visual information from the retina (vision)
4
Q
Oculomotor Nerve
- List CN
- List the holes (Foramen)
- Modality
- Function
- List synapsing ganglion
A
- CN III
- Superior orbital fissure
Modality 1 - Somatic Motor (General somatic efferent) - Supply the levator palebrae to elevate eyelid
- A lot of eye muscles that move eyeball
Modality 2 - Visceral motor aka parasympathetic ( General visceral efferent) - Makes pupil constrict
Synapsing ganglion - Ciliary Ganglion
5
Q
Trochlear Nerve
- List CN
- List the holes (Foramen)
- Modality
- Function
A
- CN IV
- Superior orbital fissure
Modality - Somatic motor (General somatic efferent) - Supply the superior oblique muscle of the eye to move eyeball inferiorly and laterally
6
Q
Trigeminal Nerve
- List CN
- List the holes (Foramen)
- Modality (on separate slide)
- Function (on separate slide)
- List three divisions
A
- CN V V1 - Ophthalmic Division of Trigeminal - Hole = Superior orbital fissure V2 - Maxillary Division of Trigeminal - Hole = Foramen rotundum V3 - Mandibular Division of Trigeminal - Hole = Foramen ovale
7
Q
Abducens Nerve
- List CN
- List the holes (Foramen)
- Modality
- Function
A
- CN VI
- Superior orbital fissure
Modality - Somatic motor (General somatic efferent) - T supply the lateral rectus muscle of the eye - moves the eyeballs outwards
8
Q
Facial Nerve
- List CN
- List the holes (Foramen)
- Modality
- Function
- List synapsing ganglia
A
- CN VII
- Internal acoustic meatus
Modality (four!) - Brachial motor (Special visceral efferent) - To supply the stapedius, stylohyoid, posterior belly of digastric muscles, the muscles of facial expressions**, including buccinator, platysma and occipitals muscles
Visceral Motor (parasympathetic) - For stimulation of the lacrimal, submandibular, and sublingual glands, as well as the mucous membrane of the nose, and hard and soft palates
General Sensory - stuff in ear
Special Sensory - For taste from the anterior two-thirds of the tongue and the hard and soft palates
Synapsing Ganglia - Pterygoplatine ganglia AND Submandibular ganglia
9
Q
Vestibulochochlear Nerve
- List CN
- List the holes (Foramen)
- Modality
- Function
A
- CN VIII
Internal acoustic meatus
Modality - Special Sensory (Special afferent)
Function - Auditory information from the cochlea (impulses) - Balance information from the semicircular canals (equilibrium)
10
Q
Glossopharyngeal Nerve
- List CN
- List the holes (Foramen)
- Modality
- Function
- List synapsing ganglia
A
- CN IX
- Jugular foramen
Modality (every fucking one - five!)
Branchial motor - to supply the striated muscle, the stylopharyngeus
Visceral motor - to supply the otic ganglion, which sends fibers to stimulate the parotid gland
Visceral sensory - Carries sensation (subconscious) from the carotid body and from the carotid sinus
General sensory - Provides general sensation from the posterior one-third of the tongue, the skin of the external ear, and the internal surface of the tympanic membrane
Special sensory - For taste from the posterior one-third of the tongue
11
Q
Vagus Nerve
- List CN
- List the holes (Foramen)
- Modality
- Function
- List synapsing ganglia
A
- CN X
Jugular foramen
Modality - four of them
Branchial motor - To striated muscles of the pharynx, tongue, and larynx
Visceral motor - TO smooth muscle and glands of the pharynx, larynx, and thoracic and abdominal viscera
Visceral sensory - Nausea. From the larynx, trachea, esophagus, and thoracic and abdominal viscera, stretch receptors in the walls of the aortic arch, chemoreceptors in the aortic bodies adjacent to the arch
General sensory - Ear and phalynx
12
Q
Accessory Nerve
- List CN
- List the holes (Foramen)
- Modality
- Function
A
- CN XI
Jugular foramen
Modality - ASK ABOUT THIS ONE. It says Branchial motor.
Function - To supply sternomastoid and trapezius
13
Q
Hypoglossal Nerve
- List CN
- List the holes (Foramen)
- Modality
- Function
A
- CN XII
Hypoglossal canal
Modality - Somatic motor
Function - To supply all intrinsic and extrinsic muscles of the tongue EXCEPT the palatoglossus (X)
14
Q
What are the 8 Foramens for the 12 cranial nerves?
A
- Cribirform plate (I)
- Optic canal (II)
- Superior orbital fissure (III, IV, V(1), VI)
- Foramen rotundum (V(2))
- Foramen ovale (V(3))
- Internal acoustic meatus (VII, VIII)
- Jugular foramen (IX, X, XI)
- Hypoglossal canal (XII)
15
Q
What are the divisions of the CN V Trigeminal Nerve?
A
V1 - Ophthalmic Division of Trigeminal - Hole = Superior orbital fissure V2 - Maxillary Division of Trigeminal - Hole = Foramen rotundum V3 - Mandibular Division of Trigeminal - Hole = Foramen ovale
