Question

A patient has weakness upon flexion of the finger, especially the first three digits, weakness of wrist flexion, and diminished sensation over the first three fingers. Between which of these structures does it pass?

A) The biceps and coracobrachialis
B) Flexor carpi ulnaris and flexor digitorum profundus
C) Flexor digitorum superficialis and flexor digitorum profundus
D) Olecranon and medial epicondyle of the humerus
E) Supinator muscle and head of the radius

Answer 1

The symptoms described suggest the involvement of the median nerve which passes between the flexor digitorum superficialis and flexor digitorum profundus muscles, leading to the diagnosis of possible Carpal Tunnel Syndrome.

Step-by-step explanation:

The patient presents with weakness upon flexion of the finger, especially the first three digits, weakness of wrist flexion, and diminished sensation over the first three fingers. These symptoms are indicative of an issue with the median nerve. The question pertains to which structure the median nerve passes between. Considering the available options and the anatomy involved, the correct answer is C) Flexor digitorum superficialis and flexor digitorum profundus. The median nerve travels through the anterior compartment of the forearm, between these two muscles, and into the carpal tunnel where it can be compressed, leading to symptoms such as those described, a condition known as Carpal Tunnel Syndrome.