Biomechanics of the Human Upper Extremity Quiz Chapter 7

Which joint in the shoulder is a modified ball-and-socket joint?

• Sternoclavicular joint

• Acromioclavicular joint

• Glenohumeral joint

• Scapulothoracic joint

Which muscles are responsible for flexion at the glenohumeral joint?

• Pectoralis major and anterior deltoid

• Latissimus dorsi and teres major

• Middle deltoid and supraspinatus

• Latissimus dorsi and sternocostal pectoralis

What type of joint is the humeroulnar joint?

• Pivot joint

• Hinge joint

• Saddle joint

• Gliding joint

Which muscle is primarily responsible for supination at the elbow?

• Brachioradialis

• Biceps brachii

• Triceps

• Brachialis

What motions are permitted at the metacarpophalangeal joints of the fingers?

• Hyperadduction and hyperflexion

• Flexion and extension

• Opposition and hyperextension

• Abduction and adduction

Which muscles are responsible for flexion of the wrist?

• Flexor carpi radialis and flexor carpi ulnaris

• Extensor carpi radialis longus and extensor carpi radialis brevis

• Pronator quadratus and supinator

• Flexor digitorum superficialis and flexor digitorum profundus

Where are the carpometacarpal joints located?

• Between the rounded distal heads of the metacarpals and the concave proximal ends of the phalanges

• Between the humeral trochlea and the trochlear fossa of the ulna

• Between the radius and the three carpal bones

• Between the trapezium and the first metacarpal

Which muscles are responsible for abduction of the hand?

• Flexor digitorum superficialis and flexor digitorum profundus

• Pronator quadratus and supinator

• Extensor carpi radialis longus and extensor carpi radialis brevis

• Flexor carpi radialis and flexor carpi ulnaris

What type of joint are the interphalangeal joints of the fingers?

• Saddle joints

• Pivot joints

• Gliding joints

• Hinge joints

Which joint in the shoulder is responsible for scapular rotation?

• Scapulothoracic joint

• Sternoclavicular joint

• Acromioclavicular joint

• Glenohumeral joint