4 results
Spinal Cord Injury by Nerve Root Levels
Spinal Root	Sensory	Motor	Reflex
C4	Acromioclavicular Joint	Respiration	None
C5	Radial Antecubital Fossa	Elbow Flexion	Biceps Reflex
C6	Dorsal Thumb	Wrist Extension	Brachioradialis Reflex
C7	Dorsal
Wrist Extension ... Flexion None T1 Ulnar ... See Dermatomes Abdominal ... Muscles Abdominal ... differential #diagnosis #Neurology
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
- C8-T1 (ulnar) ... C7-T1 (ulnar) ... , T1 (median) Reflexes ... Carpal Tunnel Syndrome ... Myotomes #diagnosis #neurology
Wartenberg Thumb Reflex

Forceful flexion of the fingers at the distal IP joints produces (Adduction, flexion, and
) INSTEAD of a normal ... Wartenberg sign in ulnar ... #clinical #video ... #hand #neurology ... #physicalexam #pyramidal
Superficial Abdominal Reflex
Let's recap the Cutaneous-abdominal Reflex.
The skin of the abdomen is stimulated with a movement
, present in normal ... injury to the pyramidal ... #Neurology #clinical ... #video #physicalexam ... #pyramidal