4 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Upper Extremity ... and Myotomes Motor ... drop - Occurs after ... spared in this injury ... #arm #physicalexam
Left Wrist Drop - Radial Nerve Palsy on Physical Examination

Left hand drop due to compression of
Left Wrist Drop ... Nerve #Palsy #PhysicalExam ... #clinical #video ... #orthopedics #msk ... #sports #neurology
Radial Nerve Anatomy and Function
The Radial nerve is the nerve of elbow, wrist and digital extension.
arises from C5, C6 ... The first motor ... drop: ECRB and ... ECU are lost (which ... diagnosis #neurology #orthopedics
Extensor Carpi Ulnaris (ECU) subluxation 
The Extensor Carpi Ulnaris (ECU), is the must ulnar of the
What causes ECU ... the sheath can cause ... relevant body parts ... subluxation #clinical #physicalexam ... #video #Orthopedics