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ANALAB: MOINA > Arm, Forearm, and Hand > Flashcards

Arm, Forearm, and Hand Flashcards

1
Q

Biceps Long Head

A

Origin: supraglenoid tubercle of scapula
Insertion: tuberosity of radius and bicipital aponeurosis into deep fascia of elbow
Nerve: musculocutaneous nerve
Action: supinator of forearm and flexor of elbow joint; weak flexor of shoulder joint

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2
Q

Biceps Short Head

A

Origin: coracoid process of scapula
Insertion: tuberosity of radius and bicipital aponeurosis into deep fascia of forearm
Nerve: musculocutaneous nerve
Action: supinator of forearm and flexor of elbow joint; weak flexor of shoulder joint

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3
Q

Coracobrachialis

A

Origin: coracoid process of scapula
Insertion: medial aspect of shaft of humerus
Nerve: musculocutaneous nerve
Action: flexes arm and also process of weak adducator

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4
Q

Brachialis

A

Origin: front and lower half of humerus
Insertion: coracoid process of ulna
nerve: musculocutaneous nerve
Action: flexes elbow joint

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5
Q

Triceps Long Head

A

Origin: infraglenoid tubercle of scapula
Insertion: olecranon process of ulna
Nerve: radial nerve
Action: extensor of elbow joint

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6
Q

Triceps Medial Head

A

Origin: lower half of posterior surface of shaft of humerus
Insertion: olecranon process of ulna
Nerve: radial nerve
Action: extensor of elbow joint

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7
Q

Triceps Lateral

A

Origin: upper half of posterior surface of shaft of humerus
Insertion: olecranon process of ulna
Nerve: radial nerve
Action: extensor of elbow joint

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8
Q

Pronator Teres Humeral Head

A

Origin: medial epicondyle of humerus
Insertion: lateral aspect of shaft of radius
Nerve: median nerve
Action: pronation and flexion of forearm

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9
Q

Pronator Teres Ulnar Head

A

Origin: medial border of coronoid process of ulna
Insertion: lateral aspect of shaft of radius
Nerve: median nerve
Action: flexion and extension of forearm

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10
Q

Flexor Carpi Radialis

A

Origin: medial epicondyle of humerus
Insertion: bases of second and third metacarpal bones
Nerve: median nerve
Action: flexes and abducts had at wrist joint

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11
Q

Palmaris Longus

A

Origin: medial epicondyle of humerus
Insertion: flexor retinaculum and palmar aponeurosis
Nerve: median nerve
Action: flexes hand

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12
Q

Flexor Carpi Ulnaris Humeral Head

A

Origin: medial epicondyle of humerus
Insertion: pisiform bone, hook of the hamate, base at fifth metacarpal bone
Nerve: ulnar nerve
Action: flexes and adducts hand at wrist joint

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13
Q

Flexor Carpi Ulnaris Ulnar Head

A

Origin: medial aspect of olecranon process and posterior border of ulna
Insertion: pisiform bone, hook of the hamate, base at fifth metacarpal bone
Nerve: ulnar nerve
Action: flexes and adducts hand at wrist joint

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14
Q

Flexor Digitorum Superficialis Humeroulnar Head

A

Origin: medial epicondyle of humerus and middle border of coronoid process of ulna
Insertion: middle phalanx of medial four fingers
Nerve: median nerve
Action: flexes middle phalanx of fingers and assists in flexing proximal phalanx and hand

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15
Q

Flexor Digitorum Superficialis Radial Head

A

Origin: oblique line on anterior surface of shaft of radius
Insertion: middle phalanx of medial four fingers
Nerve: median nerve
Action: flexes middle phalanx of fingers and assists in flexing proximal phalanx and hand

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16
Q

Flexor Pollicis Longus

A

Origin: anterior aspect of shaft of radius
Insertion: distal phalanx of thumb
Nerve: anterior interosseous branch of median nerve
Action: flexes distal phalanx of thumb

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17
Q

Flexor Digitorum Profundus

A

Origin: anteromedial aspect of shaft of ulna
Insertion: distal phalanx of medial four fingers
Nerve: ulnar (medial half) and median (lateral half) nerves
Action: flexes distal phalanx of fingers; then assists in flexion of middle and proximal phalanges and wrist

18
Q

Pronator Quadratus

A

Origin: anterior surface of shaft of ulna
Insertion: anterior surface of shaft of radius
Nerve: anterior interosseous branch of median nerve
Action: pronates forearm

19
Q

Brachioradialis

A

Origin: lateral supracondylar ridge of humerus
Insertion: base of styloid process of radius
Nerve: radial nerve
Action: flexes forearm at ridge of humerus, elbow joint, rotates forearm to the midprone position

20
Q

Extensor Carpi Radialis Longus

A

Origin: lateral supracondylar ridge of humerus
Insertion: posterior surface of base of second metacarpal bone
Nerve: radial nerve
Action: flexes and abducts hand at wrist joint

21
Q

Extensor Carpi Radialis Brevis

A

Origin: lateral epicondyle of humerus
Insertion: posterior surface of base of third metacarpal bone
Nerve: deep branch of radial nerve
Action: extends and abducts hand at wrist joint

22
Q

Extensor Digitorum

A

Origin: lateral epicondyle of humerus
Insertion: middle and distal phalanges of medial four fingers
Nerve: deep branch of radial nerve
Action: extends fingers and hand

23
Q

Extensor Digiti Minimi

A

Origin: lateral epicondyle of humerus
Insertion: extensor expansion of little finger
Nerve: deep branch of radial nerve
Action: extends metacarpal phalangeal joint of little finger

24
Q

Extensor Carpi Ulnaris

A

Origin: lateral epicondyle of humerus
Insertion: base of fifth metacarpal bone
Nerve: deep branch of radial nerve
Action: extends and adducts hand at wrist joint

25
Q

Anconeus

A

Origin: lateral epicondyle of humerus
Insertion: lateral surface of olecranon process of ulna
Nerve: radial nerve
Action: extends elbow joint

26
Q

Supinator

A

Origin: lateral epicondyle of humerus, anular ligament of proximal radioulnar joint, and ulna
Insertion: neck and shaft of radius
Nerve: deep branch of radial nerve
Action: supination of forearm

27
Q

Abductor Pollicis Longus

A

Origin: posterior surface of shafts of radius and ulna
Insertion: base of first metacarpal bone
Nerve: deep branch of radial nerve
Action: abducts and extends thumb

28
Q

Extensor Pollicis Brevis

A

Origin: posterior surface of shaft of radius
Insertion: base of proximal phalanx of thumb
Nerve: deep branch of radial nerve
Action: extends metacarpophalangeal joints of thumb

29
Q

Extensor Pollicis Longus

A

Origin: posterior surface of shaft of ulna
Insertion: base of distal phalanx of thumb
Nerve: deep branch of radial nerve
Action: extends distal phalanx of thumb

30
Q

Extensor Indicis

A

Origin: posterior surface of shaft of ulna
Insertion: extensor expansion of index finger
Nerve: deep branch of radial nerve
Action: extends metacarpophalangeal joint of index finger

31
Q

Palmaris Brevis

A

Origin: flexor retinaculum and palmar aponeurosis
Insertion: skin of palm
Nerve: superficial branch of ulnar nerve
Action: corrugates skin to improve grip of palm

32
Q

Lumbricals

A

Origin: tendon of flexor digitorum profundus
Insertion: extensor expansion of medial four fingers
Nerve: first and second (lateral two) median nerve; third and fourth deep branch of ulnar nerve
Action: flex metacarpophalangeal joints and extends interphalangeal joints of fingers except thumb

33
Q

Palmar Interossei (4)

A

Origin: first arises from base of first metacarpal; remaining three from anterior surface of shafts of second, fourth, and fifth metacarpals
Insertion: proximal phalanges of thumb and index, ring, and little fingers; dorsal extensor expansion of each finger
Nerve: deep branch of ulnar nerve
Action: adducts fingers toward center of third finger

34
Q

Dorsal Interossei (4)

A

Origin: contiguous sides of shafts of metacarpal bones
Insertion: proximal phalanges of index, ring, and little fingers; dorsal extensor expansion
Nerve: deep branch of ulnar nerve
Action: abducts metacarpal fingers from center of third finger; both palmar and dorsal flex metacarpophalangeal joints and extend interphalangeal joints

35
Q

Abductor Pollicis Brevis

A

Origin: scaphoid, trapezium, flexor retinaculum
Insertion: base of proximal phalanx of thumb
Nerve: median nerve
Action: abduction of thumb

36
Q

Flexor Pollicis Brevis

A

Origin: flexor retinaculum
Insertion: base of proximal phalanx of thumb
Nerve: median nerve
Action: flexes metacarpophalangeal joint of thumb

37
Q

Opponens Pollicis

A

Origin: flexor retinaculum
Insertion: shaft of metacarpal bone of thumb
Nerve: median nerve
Action: pulls thumb medially and forward across palm

38
Q

Adductor Pollicis

A

Origin: oblique head, second and third metacarpal bones, transverse head, third metacarpal bone
Insertion: base of proximal phalanx of thumb
Nerve: deep branch of ulnar nerve
Action: adduction of thumb

39
Q

Abductor Digiti Minimi

A

Origin: pisiform bone
Insertion: base of proximal phalanx of little finger
Nerve: deep branch of ulnar nerve
Action: abducts little finger

40
Q

Flexor Digiti Minimi

A

Origin: flexor retinaculum
Insertion: base of proximal phalanx of little finger
Nerve: deep branch of ulnar nerve
Action: flexes little finger

41
Q

Opponens Digiti Minimi

A

Origin: flexor retinaculum
Insertion: medial border of fifth metacarpal bone
Nerve: deep branch of ulnar nerve
Action: pulls fifth metacarpal bone forward as in cupping the palm

ANALAB: MOINA (11 decks)

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