Blue box anterior forearm Flashcards
a patient complains of pain over the lateral area of the humoral epicondyle and pain radiating down the posterior forearm: what might be the problem?
inflammation of the periosteum of the lateral epicondyle as a result of repeated forceful flexion/extension of the wrist…..
strain of the common extension tendon.
A patient presents with extreme flexion (hyperflexion) of at the IP joint. This is called
“mallet” or “baseball finger”
a patient presents after having fallen onto his arm, and the x ray appears to have caused the olecranon to fracture. what muscle participated in this?
the triceps
a cystic swelling in the common flexor tendon can compress what nerve?
the median nerve
What would happen if the median nerve was severed in the elbow region?
flexion of the 1-3rd phalanges would be lost. Flexion of the 4th and 5th digits would be weakened.
Why wouldn’t flexion of the distal interphalangeal joints of the 4th and 5th digits not be affected if the median nerve was cut?
because the tendon responsible for these movements–the FDP – is supplied innervation by the ulnar nerve
Hand of benediction indicates what fingers will not flex, and what nerve?
digits 2 and 3, because the median nerve supplies the lumbricals for those digits
a patient tries to make the OK sign with the thumb and index finger, but can only make a “pinch” sign. what nerve has been damaged?
the anterior interosseous nerve
if a patient is making the “pinching” sign when they meant to be making the “ok” sign, what nerve was injured and what muscles are failing?
the anterior interosseous nerve, a branch of the median nerve.
m. flexor digitorum profundis, flexor pollicis
pronator syndrome
the median nerve gets compressed between the two heads of pronator teres as a result of multiple pronations
tenderness, pain in the arm
a patient presents unable to flex digits 4 and 5. what nerve was probably damaged?
the ulnar nerve at the medial epicondyle
