Exam 2 Flashcards
CN I
Olfactory, sensory
CN II
Optic, sensory
CN III
Oculomotor, motor
CN IV
Trochlear, motor
CN V
Trigeminal
CN VI
Abducens, motor
CN VII
Facial, sensory and motor
CN VII
Acoustic, sensory
CN IX
Glossopharyngeal, motor and sensory
CN X
Vagus, motor and sensory
CN XI
Spinal accessory, motor
CN XII
Hypoglossal, motor
Pupil response to direct and concentric light and accommodation tests…
CN II (and CN III)
Six extraocular muscles tests…
CN III, CN IV, CN VI
Assessing facial VII
Raise both eyebrows Frown Close eyes tightly and don't allow you to open them Smile Show teeth Puff checks
Peripheral injury
Affects upper and lower face, Bell’s palsy
Central injury
Affects the lower face (the most)
UMN’s opposite side
Anterior 2/3 of the tongue
Sweet and salty, facial sensory
CN IX glossopharyngeal sensory
Posterior 1/3 of tongue
Whisper test
If they pass this, you don’t do anything else
If they don’t pass, you have to do Weber and Rhinne
Vestibular proprioception function assessed with …
Romberg
Motor testing of glossopharyngeal
Difficulty swallowing
Sensory testing of glossopharyngeal
Gag reflex present or absent
Vagus nerve motor testing
Swallowing, rising soft palate
Vagus nerve sensory testing
Hoarseness
Spinal accessory testing
Shoulder shrug, head turned to side against resistance
Hypoglossal testing
Move tongue In and out of mouth
L T D N sounds
Posterior horn
Sensory
Upper motor neurons
Cellular bodies in cerebral cortex/brain stem
Lower motor neurons
Cell bodies in spinal cord
3 pathways from anterior horn
Corticospinal tract
Basal ganglia
Cerebellar system
Corticospinal tract
Voluntary movement
Cross contralateral side of medulla
Forms pyramid structure
Basal ganglia system
Complex, maintains muscle tone and control body movements
Posture, gate
Cerebellar system
Sensory and motor
Coordinates motor activity
Equilibrium for posture, gait
If defect is above the medulla then…
Contralateral side because of the crossover
If the defect is below the medulla, then…
Ipsilateral side
Muscle strength grading
1- trace contraction 2- passive movement 3- active movement against gravity 4- active movement with some resistance 5- active movement with full resistance
Biceps testing…
C5 and C6
Triceps testing…
C6, C7, C8
Extension at wrist testing…
C6, C7, C8, radial
Grip, testing…
C7, C8, T1
Finger abduction testing…
C8, T1, ulnar nerve
Thumb opposition testing…
C8, T1, median nerve
Flexion of hip in leg extension tests…
L2, L3, L4, iliopsoas
Adduction at the hips is testing…
L2, L3, L4
Abduction at the hips testing…
L4, L5, S1
Extension at the hips testing…
S1, gluteus Maximus
Extension at the knee testing…
L2 L3 L4
Flexion at the knee testing…
L4 L5 s1, s2
Dorsiflexion testing
L4 L5
Plantar flexion testing
S1
Dysdiadochokinesia
Inability to perform quick movements
Dysmetria
Overshooting or undershooting intended movement of arm/leg
Pronator drift
Arms straight ahead, supination arms up eyes closed
Watch for drift and slight pronation of one arm 30 seconds then tap down briskly and watch for imbalance
DTR scale
0- no response 1- sluggish 2- normal 3- slightly hyperactive 4- brisk, hyperactive
Biceps DTR testing…
C 5, c6
Brachoradialis DTR testing…
C5, C6