QuestionSBA
QuestionChoice
This is incorrect. This is not one of the functions of the biceps brachii, so would not be impaired due to a biceps tendon rupture. Instead, extension of the arm at the elbow is achieved by the action of the triceps brachii.
10025867
c
Extension of the arm at the elbow
QuestionChoice
This is correct. The biceps brachii are responsible for supination of the forearm and flexion of the arm at the elbow and shoulder. Tendon rupture can occur with heavy overhead lifting and can result in what is known as 'pop eye' deformity. A biceps tendon rupture is therefore most likely to result in an impairment of supination of the forearm.
10025865
a
Supination of the forearm
QuestionChoice
This is incorrect. Flexion at the wrist is not one of the functions of the biceps brachii. and so would not be impaired due to a biceps tendon rupture. Flexion at the wrist is achieved by multiple muscles in the anterior compartment of the forearm; mainly flexor carpi ulnaris and flexor carpi radialis.
10025868
d
Flexion at the wrist
QuestionChoice
This is incorrect. Pronation is not one of the functions of the biceps brachii, and so would not be impaired due to a biceps tendon rupture. Instead, pronation is achieved through the action of pronator teres, pronator quadratus and brachioradialis.
10025866
b
Pronation of the forearm
QuestionChoice
This is incorrect. Extension at the shoulder is not one of the functions of the Biceps brachii, and so would not be impaired due to a biceps tendon rupture. Extension at the shoulder is achieved by the action of latissimus dorsi, teres major, pectoralis major, deltoid and the long head of triceps brachii.
10025869
e
Extension at the shoulder
Concept
Chapter
2693
5867
Biceps Tendon Tear
Topic
145
Orthopaedics
17571
A 60 year old male presents to A&E with excruciating left arm pain. It came on suddenly that afternoon while he was lifting a heavy box above his head. On examination there is significant pain in the distal aspect of the left biceps, accompanied by swelling. He is diagnosed with a biceps tendon rupture.

Which of the following movements is most likely to be impaired?
a