Lecture Quiz 7

Trochlea & trochlear notch | Head of radius & capitulum

landmarks of the elbow joint

Hinge

subclass of the elbow joint

Ulnar collateral, radial collateral, annular

ligaments of the elbow joint

Carrying angle

lateral deviation of the forearm in the anatomical position

Head of radius & radial notch

landmarks that make up the proximal RU joint

Head of ulna & ulnar notch

landmarks that make up the distal RU joint

Pivot

subclass of the proximal & distal RU joints

Annular

ligament of the proximal RU joint

Palmar radioulnar, dorsal radioulnar

ligaments of the distal RU joint

Elbow flexion (when forearm supinated)

prime movements of biceps brachii

Shoulder flexion, shoulder abduction, shoulder HABD, forearm supination (when elbow is flexed)

assistant movements of biceps brachii

Supinated, neutral, pronated

Biceps is most active in flexing elbow when forearm is ___, less active when forearm is ___, and least active when forearm is ___

Elbow flexion

prime movement of brachialis (no assistant movements)

Elbow flexion (most active when forearm is pronated)

prime movements of brachioradialis

Forearm pronation & supination

assistant movements of brachioradialis

Pronated

Brachioradialis assists with supination from a fully ___ position to neutral

Supinated

Brachioradialis assists with pronation from a fully ___ position to neutral

Elbow extension

prime movements of triceps brachii

Shoulder extension

assistant movements of triceps brachii (LH only)

Elbow extension

assistant movements of anconeus (no prime movements)

Pulls joint capsule & annular ligament out of the way

main function of anconeus (prevent pinching)

Forearm pronation

prime movement of pronator teres

Elbow flexion

assistant movement of pronator teres

Forearm pronation

prime movement of pronator quadratus (no assistant movements)

Forearm supination

prime movement of supinator

Elbow extension

assistant movement of supinator

Weak

supinator is always active in supination, but is ___, so it requires assistance from BB

Radius, scaphoid, lunate, triquetrum

bony landmarks that make up the wrist joint

Condyloid

subclass of the wrist joint

Anterior radiocarpal, posterior radiocarpal, ulnar collateral, radial collateral

ligaments of the wrist

Wrist flexion & abduction

prime movements of FCR

Elbow flexion

assistant movement for FCR

Crosses the axis anteriorly

FCR originates on the medial epicondyle and ___, allowing it to create elbow flexion

Wrist flexion

prime movement of PL

Wrist flexion

prime movement of PL

Wrist flexion & adduction

prime movements of FCU

Elbow flexion

assistant movement of FCU

Wrist extension & abduction

prime movements of ECRL

Elbow flexion

assistant movement of ECRL

Crosses the axis anteriorly

ECRL flexes the elbow because it ___

Wrist extension

prime movement of ECRB

Wrist abduction

assistant movement of ECRB

Crosses the axis directly

ECRB does not flex the elbow because it ___

Wrist extension & adduction

prime movements of ECU

Elbow extension

assistant movement for ECU