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03 - Kinesiology > 03-00-A: Muscles of the Upper Extremity > Flashcards

03-00-A: Muscles of the Upper Extremity Flashcards

1
Q

(SG) Upper Trapezius

A

O: Occiput, Nuchal Ligament, SPs of C1-C6
I: Lateral 1/3 of Clavicle, Acromion
A: Scapular elevation, Upward rotation
N: Cranial Nerve XI (Accessory Nerve)

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2
Q

(SG) Middle Trapezius

A

O: SPs of C7-T3
I: Spine of the Scapula
A: Scapular retraction, Upward rotation
N: Cranial Nerve XI (Accessory Nerve)

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3
Q

(SG) Lower Trapezius

A

O: SPs of T4-T12
I: Base of the Spine of the Scapula
A: Scapular depression, Upward rotation
N: Cranial Nerve XI (Accessory Nerve)

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4
Q

(SG) Levator Scapula

A

O: TPs of C1-C4
I: Superior Angle of Scapula down to Spine of the Scapula
A: Assists with scapular elevation, downward rotation
N: Dorsal Scapular

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5
Q

(SG) Rhomboids

A

O: Minor - SPs of C7-T1, Major - SPs of T2-T5
I: Vertebral Border of Scapula from base of the spine of scapula to inferior angle; Minor - Base of spine of scapula, Major - Bottom of the base of spine
A: Scapular retraction (w/ downward rotation component, lifts scapula slightly (elevation)
N: Dorsal Scapular

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6
Q

(SG) Serratus Antrerior

A

O: Lateral aspect of ribs 1-8
I: Anterior aspect of vertebral border of scapula
A: Scapular protraction, Upward rotation
N: Long thoracic

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7
Q

(SG) Pectoralis Minor

A

O: Anterior medial aspect of ribs 3-5
I: Coracoid process of scapula
A: Scapular depression, Anterior tilt, Downward rotation
N: Medial pectoral

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8
Q

Muscle Actions - Shoulder Girdle

A
  • Elevation: Upper trapezius, levator scapula, rhomboids
  • Depression: Lower trapezius, pectoralis minor
  • Protraction: Serratus anterior, pectoralis minor
  • Retraction: Middle trapezius, rhomboids
  • Upward Rotation: Upper/Lower trapezius, serratus anterior (lower fibers)
  • Downward Rotation: Rhomboids, levator scapula, pectoralis minor
  • Scapular Tilt - Pectoralis minor
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9
Q

(SJ) Supraspinatus

A

O: Supraspinous fossa
I: Superior facet of greater tubercle of humerus
A: Initiates “roll” (of upward rotation)
N: Suprascapular Nerve

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10
Q

(SJ) Infraspinatus

A

O: Infraspinous fossa
I: Middle facet of greater tubercle of humerus
A: Lateral rotation, Horizontal abduction
N: Suprascapular Nerve

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11
Q

(SJ) Teres Minor

A

O: Axillary border of Scapula
I: Inferior facet of greater tubercle of humerus
A: Lateral rotation, Horizontal abduction
N: Axillary Nerve

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12
Q

(SJ) Subscapularis

A

O: Subscapular fossa
I: Lesser tubercle of humerus
A: Medial rotation
N: Subscapular Nerve

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13
Q

(SJ) Anterior Deltoid

A

O: Inferior aspect of lateral 1/3 of clavicle
I: Deltoid tuberosity
A: Shoulder abduction, flexion, Medial rotation, Horizontal adduction
N: Axillary Nerve

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14
Q

(SJ) Middle Deltoid

A

O: Acromion
I: Deltoid Tuberosity
A: Shoulder abduction
N: Axillary Nerve

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15
Q

(SJ) Posterior Deltoid

A

O: Inferior aspect of spine of scapula
I: Deltoid tuberosity
A: Shoulder abduction, extension, Lateral rotation, Horizontal abduction
N: Axillary Nerve

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16
Q

(SJ) Pectoralis Major (Clavicular)

A

O: Inferior aspect of medial 2/3 of clavicle
I: Lateral lip of bicipital groove of humerus
A: Shoulder flexion (0-60˚)

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17
Q

(SJ) Pectoralis Major (Sternal)

A

O: Sternum, costal cartilage of ribs 1-6
I: Lateral lip of bicipital groove of humerus
A: Shoulder extension from full flexion (180˚-120˚)

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18
Q

(SJ) Pectoralis Major (Sternal and Clavicular)

A

A: Shoulder adduction, Primary medial rotation, Primary horizontal adduction
N: Lateral pectoral, Medial Pectoral

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19
Q

(SJ) Teres Major

A

O: Inferior angle of scapula
I: Medial lip of bicipital groove of humerus
A: Medial rotation, Shoulder adduction, extension
N: Subscapular Nerve

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20
Q

(SJ) Coracobrachialis

A

O: Coracoid process of the scapula
I: Medial aspect of the mid-shaft of the humerus
A: Assist with shoulder flexion, Shoulder adduction
N: Musculocutaneous

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21
Q

Muscle Actions - Shoulder Joint

A
  • Flexion: Anterior deltoid, pectoralis major (clavicle)
  • Extension: Posterior deltoid, latissimus dorsi, teres major, pectoralis major (sternal)
  • Hyperextension: Latissimus Dorsi, posterior deltoid
  • Abduction: Anterior deltoid, middle deltoid, posterior deltoid, supraspinatus
  • Adduction: Pectoralis major, teres major, latisssimus dorsi
  • Horizontal abduction: Posterior deltoid, infraspinatus, teres minor
  • Horizontal adduction: Pectoralis major, anterior deltoid
  • External rotation: Infraspinatus, Teres minor, posterior deltoid
  • Internal rotation: Pectoralis major, latissimus dorsi, teres major, anterior deltoid, subscapularis
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22
Q

(EJ) Brachialis

A

O: Anterior lower 1/2 of humerus
I: Coronoid process and ulnar tuberosity of the ulna
A: Prime elbow flexion (pronated position)
N: Musculocutaneous

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23
Q

(EJ) Brachioradialis

A

O: Lateral supracondylar ridge of the humerus
I: Styloid process of the radius
A: Prime elbow flexion (neutral position)
N: Radial nerve

24
Q

(EJ) Biceps Brachii

A

O: Long head - Supraglenoid tubercle of scapula, Short head - Coracoid process of scapula
I: Radial tuberosity, Licertus Fibrosis
A: Primary forearm supination, Assist elbow flexion, shoulder flexion
N: Musculocutaneous

25
Q

(EJ) Triceps Brachii

A

O: Long head - Infraglenoid tubercle of scapula, Lateral head - Posterior aspect of proximal humerus lateral to radial groove
Medial head - Posterior aspect of distal humerus medial to radial groove
I: Olecranon process of ulna
A: Primary elbow extensor, Long head - Shoulder extension, lateral rotation
N; Radial nerve

26
Q

(EJ) Anconeus

A

O: Lateral epicondyle of humerus
I: Posterior ulna adjacent to olecranon
A: Assists with elbow extension
N: Radial nerve

27
Q

(EJ) Pronator Teres

A

O: Medial epicondyle of the humerus and coronoid process of ulna
I: Lateral aspect of the radius
A: Forearm pronation, Assists with elbow flexion
N: Median nerve

28
Q

(EJ) Pronator Quadratus

A

O: Anterior distal 1/3 of ulna
I: Anterior distal 1/3 of radius
A: Forearm pronation
N: Median nerve

29
Q

(EJ) Supinator

A

O: Lateral epicondyle of humerus and adjacent ulna
I: Anterior proximal radius
A: Forearm supination, Assist with elbow extension
N: Radial nerve

30
Q

Muscle Actions - Elbow Joint

A
  • Flexion: Biceps brachii, brachialis, brachioradialis, assist from pronator teres
  • Extension: Triceps brachii, assist from anconeus
  • Pronation: Pronator teres, pronator quadratus
  • Supination: Supinator, Biceps brachii
31
Q

(WJ) Flexor Carpi Radialis (FCR)

A

O: Medial epicondyle of humerus (Common flexor tendon)
I: Base of the 2nd-3rd metacarpals
A: Wrist flexion, radial deviation
N: Median nerve

32
Q

(WJ) Flexor Carpi Ulnaris (FCU)

A

O: Medial epicondyle of humerus (Common flexor tendon)
I: Base of the 5th metacarpal
A: Wrist flexion, ulnar deviation
N: Ulnar nerve

33
Q

(WJ) Palmaris Longus (PL)

A

O: Medial epicondyle of humerus (Common flexor tendon)
I: Palmar fascia
A: Wrist flexion
N: Median nerve

34
Q

(WJ) Extensor Carpi Radialis Longus (ECRL)

A

O: Lateral epicondyle of humerus (Common extensor tendon)
I: Base of the 2nd metacarpal
A: Wrist extension, radial deviation
N: Radial nerve

35
Q

(WJ) Extensor Carpi Radialis Brevis (ECRB)

A

O: Lateral epicondyle of humerus (Common extensor tendon)
I: Base of the 3rd metacarpal
A: Wrist extension
N: Radial nerve

36
Q

(WJ) Extensor Carpi Ulnaris (ECU)

A

O: Lateral epicondyle of humerus (Common extensor tendon)
I: Base of the 5th metcarpal
A: Wrist extension, ulnar deviation
N: Radial nerve

37
Q

Muscle Actions - Wrist Joint

A
  • Flexion: Flexor Carpi Radialis, Flexor Carpi Ulnaris, Palmaris Longus
  • Extension: Extensor Carpi Radialis Longus, Extensor Carpi Radialis Brevis, Extensor Carpi Ulnaris
  • Radial Deviation: Flexor Carpi Radialis, Extensor Carpi Radialis Longus
  • Ulnar Deviation: Flexor Carpi Ulnaris, Extensor Carpi Ulnaris
38
Q

(EM) Flexor Digitorum Superficialis (FDS)

A

O: Medial epicondyle of humerus, coracoid process of ulna, middle of anterior radius
I: Lateral aspects of middle phalanges 2-5
A: Flexes PIP, MCP, radiocarpal joint
N: Median nerve

39
Q

(EM) Flexor Digitorum Profundus (FPS)

A

O: Anterior aspect of proximal ulna, interosseous membrane
I: Volar aspect of the base of distal phalanges 2-5 (runs deep to FDS)
A: Flexes DIP, PIP, MCP, radiocarpal joint
N: Median nerve (Digits 2-5), Ulnar nerve (Digits 4-5)

40
Q

(EM) Flexor Pollicis Longus

A

O: Anterior aspect of radius, interosseous membrane
I: Volar aspect of distal phalange 1 (1st digit)
A: Flexes IP, MCP, assists with radiocarpal joint flexion
N: Median nerve

41
Q

(EM) Extensor Digitorum Communis

A

O: Common extensor tendon
I: Extension hood (Dorsum of distal phalange) Digits 2-4
A: Extends DIP, PIP, MCP, radiocarpal joint
N: Radial nerve

42
Q

(EM) Extensor Digitorum Indicis

A

O: Posterior aspect of distal ulna
I: Extensor hood of 2nd digit
A: Extends DIP, PIP, MCP of 2nd digit; radiocarpal joint
N: Radial nerve

43
Q

(EM) Extensor Digiti Minimi

A

O: Common extensor tendon
I: Extension hood of 5th digit
A: Extends DIP, PIP, MCP of 5th digit; radiocarpal joint
N: Radial nerve

44
Q

(EM) Abductor Pollicis Longus

A

O: Posterior aspect of ulna, interosseous membrane, posterior radius
I: Base of 1st metacarpal
A: Abduction of 1st digit
N: Radial nerve

45
Q

(EM) Extensor Pollicis Brevis

A

O: Posterior aspect of radius, interosseous membrane
I: Base of proximal phalange of 1st digit
A: Extends MCP, radiocarpal joint
N: Radial nerve

46
Q

(EM) Extensor Pollicis Longus

A

O: Posterior ulna, interosseous membrane
I: Base of distal phalange of 1st digit
A: Extends DIP, MCP of first digitl; radiocarpal joint; assists with supination
N: Radial nerve

47
Q

(IM) Flexor Pollicis Brevis

A

A: Flexes 1st digit
N: Median nerve

48
Q

(IM) Abductor Pollicis Brevis

A

A: Abducts 1st digit
N: Median nerve

49
Q

(IM) Opponens Pollicis

A

A: Opposes 1st digit
N: Median nerve

50
Q

(IM) Flexor Digiti Minimi

A

A: Flexes 5th digit
N: Ulnar nerve

51
Q

(IM) Abductor Digiti Minimi

A

A: Abducts 5th digit
N: Ulnar nerve

52
Q

(IM) Opponens Digiti Minimi

A

A: Opposes 5th digit
N: Ulnar nerve

53
Q

(IM) Lumbricals

A

O: Tendons of Flexor Digitorum Profundus (2-5)
I: Extension hood of digits 205
A: Flexes MCPs, extends IPs
N: Median nerve (Digits 2-3), Ulnar nerve (Digits 4-5)

54
Q

(IM) Dorsal Interossei (DAB)

A

O: Adjacent to metacarpals
I: Base of lateral aspects of proximal phalanx 2-4
A: Abducts digits 2-4
N: Ulnar nerve

55
Q

(IM) Palmar Interossei (PAD)

A

O: Adjacent to respective metacarpals
I: Base of respective proximal phalanx
A: Adducts digits 2, 4, 5
N: Ulnar nerve

56
Q

(IM) Adductor Pollicis

A

A: Adduction of 1st digit
N: Ulnar nerve

  • Last muscle innervated by ulnar nerve

03 - Kinesiology (18 decks)

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