Cranial Nerves Flashcards
Give the 12 cranial nerves
I. Olfactory
Il. Optic
III. OCCULOMOTOR
IV. TROCHLEAR
V. TRIGEMINAL
VI. ABDUCENS
VII. FACIAL
VIII. ACCOUSTIC
IX. GLOSSOPHARYNGEAL
X. VAGUS
XI. SPINAL ACCESSORY
XII. HYPOGLOSSAL
smell, familiar and non irritating smell
CN 1, Olfactory
Vision
CN 2, OPTIC
eye muscle movement, pupil constriction
CN 3, occulomotor
One eye muscle movement, superior oblique movement of eyes (upward, down ward and middle)
CN 4, TROCHLEAR
Sensory to head and face: mastication, chewing and irritating odors
CN 5, trigeminal
One eye muscle movement: lateral movement of eye (side eye)
CN 6 ABDUCENS
Facial expression, taste saliva
CN 7, Facial expression
Hearing and balance
CN 8, Acoustic
For swallowing, taste, saliva and gag reflex
CN 9 GLOSSOPHARYNGEAL
larynx, thoracic, abdominal organs
Largest and most important cranial nerves
CN 10 Vagus
Shoulder and neck muscle movements
CN 11 spinal accessory
Tongue muscle movement
CN 12 hypoglossal
How many pairs of spinal nerve do we have
31
Cervical
8
Thoracic
12
Lumbar
5
Sacral
5
Coccygeal
1
The fight, flight and fright response ‘
increases heart rate
Tachycardia
Sympathetic
Rest and digest
Slowing down of heart rate
Bradycardia
Parasympathetic
The 4 parasympathetic cranial nerves
3, 7, 9, 10