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Forearm, Wrist, Hand

muscles of the forearm, wrist and hand

QuestionAnswerAnswerAnswerAnswerAnswer
What are the origin of Pronator Teres? medial epicondyle of the humerus coronoid process of the ulna
What is the insertion of Pronator Teres? mid lateral radial shaft
What are the action of Pronator Teres? pronates the forearm flexes the elbow
What is the nerve for Pronator Teres? median nerve
What is the origin of Pronator Quadratus? anterior distal quarter of the ulnar shaft
What is the insertion of Pronator Quadratus? anterior distal quarter of the radial shaft
what is the action of Pronator Quadratus? pronates the forearm
What is the nerve for Pronator Quadratus? median nerve
What are in origins for Supinator? lateral epicondyle of the humerus proximal eighth (1/8) of the ulnar shaft radial collateral ligament annular ligament
What is the insertion of the Supinator? proximal lateral radial shaft
What is the action of the Supinator? supinates the forearm
What is the nerve for the Supinator? radial nerve
What are the four wrist flexors that originate on the medial epicondyle of the humerus? flexor carpi radialis flexor carpi ulnaris palmaris longus flexor digitorum superficialis
Where does the radial pulse lie? between the tendons of flexor carpi radialis and brachioradials
What is the origin of Flexor Carpi Radialis? medial epicondyle of the humerus
What is the insertion of Flexor Carpi Radialis? bases of metacarpals 2 and 3
What are the actions for Flexor Carpi Radialis? flexes the wrist abducts the wrist flexes the elbow
What is the nerve for Flexor Carpi Radialis? median nerve
What are the origins of Flexor Carpi Ulnaris? medial epicondyle of the humerus medial olecranon posterior proximal two thirds (2/3) of the ulna
What are the insertion of Flexor Carpi Ulnaris? metacarpal 5 pisiform hamate
What are the actions of Flexor Carpi Ulnaris? flexes the wrist adducts the wrist
What is the nerve for Flexor Carpi Ulnaris? ulnar nerve
What is the origin of Palmaris Longus? medial epicondyle of the humerus
What is the insertion of Palmaris Longus? palmer aponeurosis
What are the actions of Palmaris Longus? flexes the wrist cup (tense) the palm
What is the nerve for Palmaris Longus? median nerve
Which wrist flexors is absent from cadavers approximately 10% of the time? Palmaris Longus
Of all the movements allowed by the forearm, which is the most powerful? wrist flexion figure flexion
What are the origins of the Flexor Digitorum Superficialis? medial epicondyle of the humerus proximal radial shaft (upper region) coronoid process of the ulna
What is the insertion of Flexor Digitorum Superficialis? distal phalanges of digits 2 through 5
What are the actions of Flexor Digitorum Superficialis? flexes the wrist flexes fingers at the proximal interphalangeal (PIP) and metacarpophalangeal (MP)joints
What is the nerve for Flexor Digitorum Superficialis? median nerve
What are the origins for Flexor Digitorum Profundus? anterior proximal three fourths (3/4) of the ulnar shaft interosseus membrane
What are the insertions of Flexor Digitorum Profundus? distal phalanges of digits 2 through 5
What is the action of Flexor Digitorum Profundus? flexes the fingers at the distal interphalangeal (DIP), PIP, and MP joints
What are the nerves for Flexor Digitorum Profundus? ulnar nerve median nerve
What is the origin of Extensor Carpi Radialis Longus? lateral supracondylar ridge of the humerus
What is the insertion of Extensor Carpi Radialis Longus? metacarpal 2
What are the actions of Extensor Carpi Radialis Longus? extends the wrist abducts the wrist
What is the nerve for Extensor Carpi Radialis Longus? radial nerve
What is the origin for Extensor Radialis Brevis? lateral epicondyle of the humerus
What is the insertion of Extensor Carpi Radialis Brevis? metacarpal 3
What are the actions of Extensor Carpi Radialis Brevis? extends the wrist abducts the wrist
What is the nerve for Extensor Carpi Radialis Brevis? radial nerve
Which two forearm extensor muscles are called the "fist clinchers"? Extensor Carpi Radialis Longus Extensor Carpi Radialis Brevis
Which extensor forearm muscle often becomes inflamed at the origin (epicondylitis) in tennis elbow? extensor carpi radialis brevis
Which three wrist extenders originate on the lateral epicondyle of the humerus? extensor carpi radialis brevis extensor carpi ulnaris extensor digitorum
What is the origin of Extensor Carpi Ulnaris? lateral epicondyle of the humerus
What is the insertion of Extensor Carpi Ulnaris? metacarpal 5
What are the actions of Extensor Carpi Ulnaris? extends the wrist extends the fingers at the DIP, PIP and MP joints
What is the nerve for Extensor Carpi Ulnaris? radial nerve
What is another name for Extensor Carpi Ulnaris? extensor digitorum communis
What is the origin of Extensor Digitorum? lateral epicondyle of the humerus
What are the insertions of Extensor Digitorum? middle and distal digits 2 through 5
What are the actions of Extensor Digitorum? extends the wrist extends the fingers at the DIP, PIP, and MP joints
What is the nerve for Extensor Digitorum? radial nerve
Which extensor muscle is also know as the "tea drinkers" muscle? extensor digiti minimi
What is the origin of Extensor Digiti Minimi? lateral epicondyle for the humerus
What are the insertions of Extensor Digiti Minimi? middle and distal digits of the fifth finger
What is the action of Extensor Digiti Minimi? extends the little finger
What is the nerve for Extensor Digiti Minimi? radial nerve
What are the origins of Extensor Indicis? distal ulnar shaft interosseus membrane
What are the insertions of Extensor Indicis? middle and distal digits of the index finger
What is the action of Extensor Indicis? extends the index finger
What is the nerve for Extensor Indicis? radial nerve
What are the origins of Extensor Pollicis Longus and Brevis? Posterior ulnar shaft, middle region (longus) Posterior radial shaft, distal region (brevis) interosseus membrane (brevis and longus)
What are the insertions of Extensor Pollicis Longus and Brevis? distal phalanx of the thumb (longus) proximal phalanx of the thumb (brevis)
What is the action of Extensor Pollicis Longus and Brevis? extends the thumb
What is the nerve for Extensor Pollicis Longus and Brevis? radial nerve
What are the origins of Flexor Pollicis Longus and Brevis? anterior radial shaft, middle region (longus) interosseus membrane (longus) trapezium (brevis) transverse carpal ligament (brevis)
What are the insertions of Flexor Pollicis Longus and Brevis? distal phalanx of the thumb (longus) proximal phalanx of the thumb (brevis)
What is the action of Flexor Pollicis Longus and Brevis? flex the thumb
What is the nerve for Flexor Pollicis Longus and Brevis? median nerve
What are the origins for Opponens Pollicis? trapezium transverse carpal ligament
What is the insertion of Opponens Pollicis? metacarpal 1
What are the actions of Opponens Pollicis? flexes the thumb adducts the thumb
What is the nerve for Opponens Pollicis? median nerve
What are the insertions of Abductor Pollicis Longus and Brevis? metacarpal 1 (longus) proximal phalanx of the thumb (brevis)
What is the action of Abductor Pollicis Longus and Brevis? abducts the thumb
What are the origins of Abductor Pollicis Longus and Brevis? posterior ulnar and radial shaft, middle region (longus) interosseus membrane (longus) trapezium (brevis) scaphiod (brevis) transverse carpal ligament (brevis)
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