A Communicating Branch Between the Musculocutaneous Nerve and the Median Nerve: A Case Report

Anatomical variations of peripheral nerves are commonly reported in the literature.  While typically benign, they are of clinical importance as they can contribute to atypical clinical presentations, cause difficulty with imaging and nerve conduction studies, and lead to surgical challenges for surgeons.  We report here a communicating branch between the musculocutaneous nerve and median nerve found during cadaveric dissection in a Doctor of Nursing Practice course in the Department of Nurse Anesthesia at Samford University.  Although the case described here is among the most common anatomical variations of the peripheral nerves, there are classification systems for this variation that need to be recognized and applied by anatomists, clinicians, and surgeons

Bilateral Long Head of the Triceps Brachii Muscle Innervation via Axillary Nerve: A Case Report

The radial nerve has traditionally been considered the innervation of the long head of the triceps brachii (LHT). However, cadaveric studies have discovered LHT innervation via the axillary nerve in roughly 6-15 % of shoulders. A cadaver with exclusive axillary nerve innervation to the LHT bilaterally was discovered during cadaveric dissection in a graduate course at Samford University. This anatomical variation may have clinical implications for surgeries, shoulder dislocations, and quadrilateral space syndrome. Axillary nerve injuries may additionally present with shoulder extension and elbow extension weakness if this variation is present.&nbsp

Additional Tendon Slip of the Extensor Carpi Radialis Longus: A Case Report with Clinical Application

Additional tendon slips of the extensor carpi radialis longus are rare anatomical variants, with incidence ranging from 12-35%.  While this anatomical variant is typically benign, it is clinically important as it can contribute to neuromusculoskeletal dysfunction.  Medical providers should be aware of variations of the wrist extensors during surgeries involving the forearm and wrist.  The presence of additional tendons may cause confusion when interpreting imaging findings.  This case report details findings of an additional wrist extensor tendon identified during a cadaveric dissection lab in a physical therapist education program.&nbsp