Cranial Nerves/Spinal Nerves

Question 1

How many spinal nerves are there?

Answer 1

31 spinal nerves

Question 2

C1-C7 nerves exit above or below the vertebrae?

Answer 2

Above

Question 3

All nerves other than C1-C7 exit above or below the vertebrae?

Answer 3

Below

Question 4

Vertebral Disc herniation occurs in what direction, where?

Answer 4

L4-L5, L5-S1

Posteriolaterally

Question 5

Cranial Nerve 5 Sensation and Motor?

Answer 5

Sensation:
Anterior 2/3 Tongue Sensation
Facial Sensation

Motor:
Muscles of Mastication

Question 6

What are the muscles of mastication? Which one opens?

Answer 6

Masseter, Temporalis, Medial pterygoid, 
lateral pterygoid (only one that opens; Lateral Lowers)

Question 7

Cranial Nerve 7 Sensation and Motor?

Answer 7

“Spit when your angry and drool when you smile”
Sensation:
Lacrimation, Salivation (submandibular and sublingual glands)
Motor:
Facial Movement (Smile)
Shutting down the Eyes (orbicularis oculi)
Stapedius Muscle in the ear
*Goes through partoid but does NOT innervate it

Question 8

Cranial Nerve 9 Sensation and Motor?

Pharyngeal-Glossal N.

Answer 8

Sensation: 
Taste and Sensation of 1/3 of the tongue
Salivation (parotid gland)
Carotid Body and Sinus
Motor:
Stylopharyngeus (elevates pharynx and larynx)
Swallowing

Question 9

Cranial Nerve 10 Sensation and Motor?

Vagus N.

Answer 9

Viscera (abd and pulmonary), Aortic Arch/Away, Glottis, Uvula and Swallowing/Soft Palate elevation
Sensation: 
Taste and Sensation of epiglottic
Salivation (parotid gland)
Aortic Arch chemo/baroreceptors
Motor:
Stylopharyngeus (elevates pharynx and larynx)
Swallowing

Question 10

Eye movement nerves?

Answer 10

CN3, SO4, LR6

Question 11

Lateral Nuclei of Cranial Nerves are? Where do they come from?

Answer 11

Sensory, aLar pLate

Question 12

Medial Nuclei of Cranial Nerves are? Where do they come from?

Answer 12

Motor, basal plate

Question 13

Which nuclei is the only one outside of the brain stem?

Answer 13

CN 11=>spinal cord

Question 14

Cranial Nerve 2 comes out from?

Answer 14

Optic Canal

Question 15

Cranial Nerve 3, 4, V1 and 6 ophthalmic vein and symp. fibers comes out from?

Answer 15

Superior Orbital Fissure

Question 16

Foramen Rotundum?

Answer 16

CN V2

Question 17

Foramen Ovale?

Answer 17

What is round and looks like breast?

CN 3

Question 18

Foramen Spinosum?

Answer 18

Middle meningeal artery

Question 19

What bone is CN2-6 going through?

Answer 19

Sphenoid

Question 20

CN7 and 8 comes out from?

Answer 20

Internal Auditory Meatus

Question 21

CN9, 10, 11 and jugular veins comes out from?

Answer 21

Jugular foramen

Question 22

CN 12 comes out from

Answer 22

Hypoglossal canal

Question 23

Vertebral arteries, brainstem and CN 11 spinal roots come out from?

Answer 23

Foramen Magnum

Question 24

CN 7-12 come out from which bone?

Answer 24

Temporal or occipital bone

Question 25

Visceral Senosry info from 7, 9, 10>

Answer 25

Nucleus Solitarus

Question 26

Motor innervation of pharynx, larynx and upper esophagus?

Answer 26

Nucleus aMbiguus

Question 27

Dorsal motor nucleus involves what nerve and where does it send its fibers to?

Answer 27

``` CN 10 Sends autonomic (parasymp) fibers to heart lungs and upper GI ```

Question 28

Corneal Reflex? Afferent and Efferent

Answer 28

Afferent: V1 Efferent: 7

Question 29

Lacrimation Reflex? Afferent and Efferent

Answer 29

Afferent: V1 Efferent: 7

Question 30

Jaw Jerks Reflex? Afferent and Efferent

Answer 30

Afferent: V3 Efferent: V3

Question 31

Pupillary Reflex? Afferent and Efferent

Answer 31

Afferent: 2 Efferent: 3

Question 32

Gag Reflex? Afferent and Efferent

Answer 32

Afferent: 9 Efferent: 10

Question 33

CN 5 and 12 deviates towards or away? | Think Tongue

Answer 33

Towards

Question 34

CN 10 (Uvula) deviates towards or away?

Answer 34

Away

Question 35

CN 11 there is weakness turning the head to the same side or opposite side of the lesion? Shoulder droop on the same side or opposite side

Answer 35

Opposite side Same Side

Question 36

How do you know your in the cervical region?

Answer 36

2 C's of the spinal cord

Question 37

In your cervical region, it is ipsilateral for? Contralateral for?

Answer 37

Ipsilateral Motor | Contralateral Pain and Temperature

Question 38

Signs of Upper Motor Neuron Lesion?

Answer 38

Hyperreflexia, DTRs and +Babinski