3 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Wrist drop - Occurs ... "Saturday night ... Myotomes #diagnosis #neurology ... sensory #motor #arm ... #physicalexam
In this video, you see right sided atrophy, right sided deviation, and fasiculations R>L, indicating a
hoarseness; and CNXII ... Fasciculations #PhysicalExam ... #Clinical #Video ... HypoglossalNerve #CNXII ... #CN12 #Neurology
Left Tongue Deviation caused by UMN XII palsy

Looks can be deceiving. The UMN innervation of most
CN 5,7 &12. ... Deviation #UMN #CNXII ... #palsy #clinical ... #hypoglossal #physicalexam ... #neurology