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A&P I > Exam 5 - Muscle Spreadsheet > Flashcards

Exam 5 - Muscle Spreadsheet Flashcards

1
Q

SCAPULOHUMERAL MUSCLES

A 
Deltoid
Supraspinatus
Infraspinatus
Teres Minor 
Teres Major 
Subscapularis
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2
Q

Deltoid

A

acromial extremity of clavicle, acromion and spine of scapula

deltoid tuberosity of humerus

entire muscle abducts arm at shoulder joint, anterior fibers flex and medially rotate arm, posterior fibers extend and laterally rotate arm

axillary nerve

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3
Q

Supraspinatus

A

supraspinous fossa of scapula

greater tubercle (AKA greater tuberosity) of humerus

assists deltoid with initial stages of abducting arm at shoulder joint, and continues to act throughout abduction

suprascapular nerve

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4
Q

Infraspinatus

A

infraspinous fossa of scapula

greater tubercle of humerus

laterally rotates arm at shoulder joint

suprascapular nerve

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5
Q

Teres Minor

A

middle lateral border of scapula

greater tubercle of humerus

laterally rotates and adducts arm at shoulder joint

axillary nerve

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6
Q

Teres Major

A

inferior lateral border (angle) of scapula

intertubercular sulcus (AKA intertubercular groove) of humerus

adducts, medially rotates, and extends arm (dorsally) at shoulder joint

lower subscapular nerve

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7
Q

Subscapularis

A

subscapular fossa of scapula

lesser tubercle of humerus

medially rotates arm at shoulder joint

upper and lower subscapular nerves

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8
Q

acromial extremity of clavicle, acromion and spine of scapula

deltoid tuberosity of humerus

entire muscle abducts arm at shoulder joint, anterior fibers flex and medially rotate arm, posterior fibers extend and laterally rotate arm

axillary nerve

A

deltoid

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9
Q

supraspinous fossa of scapula

greater tubercle (AKA greater tuberosity) of humerus

assists deltoid with initial stages of abducting arm at shoulder joint, and continues to act throughout abduction

suprascapular nerve

A

supraspinatus

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10
Q

infraspinous fossa of scapula

greater tubercle of humerus

laterally rotates arm at shoulder joint

suprascapular nerve

A

infraspinatous

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11
Q

middle lateral border of scapula

greater tubercle of humerus

laterally rotates and adducts arm at shoulder joint

axillary nerve

A

teres minor

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12
Q

inferior lateral border (angle) of scapula

intertubercular sulcus (AKA intertubercular groove) of humerus

adducts, medially rotates, and extends arm (dorsally) at shoulder joint

lower subscapular nerve

A

Teres major

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13
Q

subscapular fossa of scapula

lesser tubercle of humerus

medially rotates arm at shoulder joint

upper and lower subscapular nerves

A

subscapularis

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14
Q

MUSCLES OF THE ARM (ANTERIOR COMPARTMENT)

A

Biceps Brachii
Brachialis
Coracobrachialis

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15
Q

Long head: supraglenoid tubercle of scapula
Short head: coracoid process of scapula

tuberosity of radius (AKA radial tuberosity) and bicipital aponeurosis

flexes forearm at elbow joint, supinates forearm (at radioulnar joint), and flexes arm at shoulder joint. Additionally, it is a powerful supinator.

musculocutaneous nerve

A

Biceps Brachii

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16
Q

Biceps Brachii

A

Long head: supraglenoid tubercle of scapula
Short head: coracoid process of scapula

tuberosity of radius (AKA radial tuberosity) and bicipital aponeurosis

flexes forearm at elbow joint, supinates forearm (at radioulnar joint), and flexes arm at shoulder joint. Additionally, it is a powerful supinator.

musculocutaneous nerve

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17
Q

humerus

ulnar tuberosity and coronoid process of ulna

flexes forearm at elbow joint (major flexor of elbow)

musculocutaneous nerve

A

Brachialis

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18
Q

Brachialis

A

humerus

ulnar tuberosity and coronoid process of ulna

flexes forearm at elbow joint (major flexor of elbow)

musculocutaneous nerve

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19
Q

coracoid process of scapula

shaft of humerus

flexes and adducts arm at the shoulder joint

musculocutaneous nerve

A

Coracobrachialis

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20
Q

Coracobrachialis

A

coracoid process of scapula

shaft of humerus

flexes and adducts arm at the shoulder joint

musculocutaneous nerve

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21
Q

MUSCLES OF THE ARM (POSTERIOR COMPARTMENT)

A

Triceps Brachii

Anconeus

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22
Q

Long head: infraglenoid tubercle of scapula
Lateral head: humerus
Medial head: humerus

olecranon of ulna extends forearm at elbow joint,

extends arm at shoulder joint

radial nerve

A

Triceps Brachii

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23
Q

Triceps Brachii

A

Long head: infraglenoid tubercle of scapula
Lateral head: humerus
Medial head: humerus

olecranon of ulna extends forearm at elbow joint,

extends arm at shoulder joint

radial nerve

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24
Q

lateral epicondyle of humerus

olecranon of ulna

assists triceps in extending forearm at elbow joint and stabilizes elbow joint

radial nerve

A

Anconeus

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25
Q

Anconeus

A

lateral epicondyle of humerus

olecranon of ulna

assists triceps in extending forearm at elbow joint and stabilizes elbow joint

radial nerve

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26
Q

SUPERFICIAL MUSCLES OF THE FOREARM, ANTERIOR (FLEXOR) COMPARTMENT

A 
Flexor Carpi Radialis 
Palmaris Longus 
Flexor Carpi Ulnaris 
Flexor Digitorum Superficialis 
Pronator Teres
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27
Q

medial epicondyle of humerus

radial anterior hand (anterior side of bases of 2nd and 3rd metacarpals)

flexes and abducts hand at wrist (radial deviation)

median nerve

A

Flexor Carpi Radialis

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28
Q

Flexor Carpi Radialis

A

medial epicondyle of humerus

radial anterior hand (anterior side of bases of 2nd and 3rd metacarpals)

flexes and abducts hand at wrist (radial deviation)

median nerve

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29
Q

medial epicondyle of humerus via the common flexor tendon

flexor retinaculum and palmar aponeurosis

flexes hand at wrist and tightens palmar aponeurosis

median nerve

A

Palmaris Longus

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30
Q

Palmaris Longus

A

medial epicondyle of humerus via the common flexor tendon

flexor retinaculum and palmar aponeurosis

flexes hand at wrist and tightens palmar aponeurosis

median nerve

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31
Q

Humeral head: medial epicondyle of humerus via common flexor tendon
Ulnar head: olecranon and posterior border of ulna

ulnar anterior hand carpals (pisiform, hook of hamate, and base of 5th metacarpal)

flexes and adducts hand at wrist (ulnar deviation)

ulnar nerve

A

Flexor Carpi Ulnaris

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32
Q

Flexor Carpi Ulnaris

A

Humeral head: medial epicondyle of humerus via common flexor tendon
Ulnar head: olecranon and posterior border of ulna

ulnar anterior hand carpals (pisiform, hook of hamate, and base of 5th metacarpal)

flexes and adducts hand at wrist (ulnar deviation)

ulnar nerve

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33
Q

medial epicondyle of humerus via common flexor

tendon and also the upper radius and upper ulna

anterior surface of the middle phalanges of the fingers (digits 2 – 5)

flexes fingers, flexes hand at wrist

median nerve

A

Flexor Digitorum Superficialis

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34
Q

Flexor Digitorum Superficialis

A

medial epicondyle of humerus via common flexor

tendon and also the upper radius and upper ulna

anterior surface of the middle phalanges of the fingers (digits 2 – 5)

flexes fingers, flexes hand at wrist

median nerve

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35
Q

medial epicondyle of humerus

radius

pronates forearm (at elbow)

median nerve

A

Pronator Teres

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36
Q

Pronator Teres

A

medial epicondyle of humerus

radius

pronates forearm (at elbow)

median nerve

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37
Q

DEEP MUSCLES OF THE FOREARM, ANTERIOR (FLEXOR) COMPARTMENT

A

Flexor pollicis longus
Flexor Digitorum Profundus
Pronator quadratus

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38
Q

radius and interosseous membrane

distal phalanx of thumb

flexes distal phalanx of thumb

median nerve

A

Flexor pollicis longus

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39
Q

Flexor pollicis longus

A

radius and interosseous membrane

distal phalanx of thumb

flexes distal phalanx of thumb

median nerve

40
Q

ulna and interosseous membrane

anterior surface of digits 2 – 5 (distal phalanx of digits 2 – 5)

flexes fingers at distal phalanges and assists with flexion of hand

median and ulnar nerves

A

Flexor Digitorum Profundus

41
Q

Flexor Digitorum Profundus

A

ulna and interosseous membrane

anterior surface of digits 2 – 5 (distal phalanx of digits 2 – 5)

flexes fingers at distal phalanges and assists with flexion of hand

median and ulnar nerves

42
Q

ulna (distal shaft)

radius (distal shaft)

pronates forearm (at radioulnar joint)

median nerve

A

Pronator quadratus

43
Q

Pronator quadratus

A

ulna (distal shaft)

radius (distal shaft)

pronates forearm (at radioulnar joint)

median nerve

44
Q

SUPERFICIAL MUSCLES OF THE FOREARM, POSTERIOR (EXTENSOR) COMPARTMENT

A 
Brachioradialis
Extensor Carpi Radialis Longus 
Extensor Carpi Radialis Brevis 
Extensor Digitorum 
Extensor Digiti Minimi 
Extensor Carpi Ulnaris
45
Q

humerus

radius (near styloid process)

flexes forearm at elbow; supinates and pronates forearm (back to neutral).

radial nerve

A

Brachioradialis

46
Q

Brachioradialis

A

humerus

radius (near styloid process)

flexes forearm at elbow; supinates and pronates forearm (back to neutral).

radial nerve

47
Q

distal humerus

radial posterior hand (posterior side of base of second metacarpal)

extends and abducts hand at wrist joint (radial deviation)

radial nerve

A

Extensor Carpi Radialis Longus

48
Q

Extensor Carpi Radialis Longus

A

distal humerus

radial posterior hand (posterior side of base of second metacarpal)

extends and abducts hand at wrist joint (radial deviation)

radial nerve

49
Q

lateral epicondyle of humerus via common extensor tendon

radial posterior hand (posterior side of base of 3rd metacarpal)

extends and abducts hand at wrist joint (radial deviation)

deep radial nerve

A

Extensor Carpi Radialis Brevis

50
Q

Extensor Carpi Radialis Brevis

A

lateral epicondyle of humerus via common extensor tendon

radial posterior hand (posterior side of base of 3rd metacarpal)

extends and abducts hand at wrist joint (radial deviation)

deep radial nerve

51
Q

lateral epicondyle of humerus via common extensor tendon

phalanges of digits 2 – 4 or 2 – 5

extends digits 2 – 4 or 2 – 5

deep radial nerve

A

Extensor Digitorum

52
Q

Extensor Digitorum

A

lateral epicondyle of humerus via common extensor tendon

phalanges of digits 2 – 4 or 2 – 5

extends digits 2 – 4 or 2 – 5

deep radial nerve

53
Q

lateral epicondyle of humerus via common extensor tendon

phalanx of little finger (5th digit)

extends 5th digit

deep radial nerve

A

Extensor Digiti Minimi

54
Q

Extensor Digiti Minimi

A

lateral epicondyle of humerus via common extensor tendon

phalanx of little finger (5th digit)

extends 5th digit

deep radial nerve

55
Q

lateral epicondyle of humerus via common extensor tendon

ulnar posterior hand (posterior side of base of 5th metacarpal)

extends and adducts hand at wrist joint (ulnar deviation)

deep radial nerve

A

Extensor Carpi Ulnaris

56
Q

Extensor Carpi Ulnaris

A

lateral epicondyle of humerus via common extensor tendon

ulnar posterior hand (posterior side of base of 5th metacarpal)

extends and adducts hand at wrist joint (ulnar deviation)

deep radial nerve

57
Q

DEEP MUSCLES OF THE FOREARM, POSTERIOR (EXTENSOR) COMPARTMENT

A 
Abductor Pollicis Longus 
Extensor Pollicis Brevis 
Extensor Pollicis Longus 
Extensor Indicis 
Supinator
58
Q

posterior radius and ulna (and interosseous membrane)

base of thumb (at 1st metacarpal)

abducts and extends thumb

deep radial nerve

A

Abductor Pollicis Longus

59
Q

Abductor Pollicis Longus

A

posterior radius and ulna (and interosseous membrane)

base of thumb (at 1st metacarpal)

abducts and extends thumb

deep radial nerve

60
Q

posterior radius (and interosseous membrane)

proximal phalanx of thumb

extends thumb

deep radial nerve

A

Extensor Pollicis Brevis

61
Q

Extensor Pollicis Brevis

A

posterior radius (and interosseous membrane)

proximal phalanx of thumb

extends thumb

deep radial nerve

62
Q

posterior ulna (and interosseous membrane)

distal phalanx of thumb

extends thumb

deep radial nerve

A

Extensor Pollicis Longus

63
Q

Extensor Pollicis Longus

A

posterior ulna (and interosseous membrane)

distal phalanx of thumb

extends thumb

deep radial nerve

64
Q

ulna (and interosseous membrane)

index finger (extensor expansion of 2nd digit)

extends 2nd digit (and helps extend hand)

deep radial nerve

A

Extensor Indicis

65
Q

Extensor Indicis

A

ulna (and interosseous membrane)

index finger (extensor expansion of 2nd digit)

extends 2nd digit (and helps extend hand)

deep radial nerve

66
Q

humerus (lateral epicondyle) and ulna (proximal portion)

proximal radius

supinates forearm

deep radial nerve

67
Q

Supinator

A

humerus (lateral epicondyle) and ulna (proximal portion)

proximal radius

supinates forearm

deep radial nerve

68
Q

PRONATORS AND SUPINATORS

A

Pronator Teres
Pronator quadratus
Supinator
Brachioradialis

69
Q

medial epicondyle of humerus

radius

pronates forearm (at elbow)

median nerve

A

Pronator Teres

70
Q

Pronator Teres

A

medial epicondyle of humerus

radius

pronates forearm (at elbow)

median nerve

71
Q

ulna (distal shaft)

radius (distal shaft)

pronates forearm (at radioulnar joint)

median nerve

A

Pronator quadratus

72
Q

Pronator quadratus

A

ulna (distal shaft)

radius (distal shaft)

pronates forearm (at radioulnar joint)

median nerve

73
Q

THENAR COMPARTMENT MUSCLES

A

Abductor Pollicis Brevis
Opponens Pollicis
Flexor Pollicis Brevis

74
Q

flexor retinaculum, scaphoid, and trapezium

lateral side of proximal phalanx of thumb

abducts thumb (and helps oppose it)

median nerve

A

Abductor Pollicis Brevis

75
Q

Abductor Pollicis Brevis

A

flexor retinaculum, scaphoid, and trapezium

lateral side of proximal phalanx of thumb

abducts thumb (and helps oppose it)

median nerve

76
Q

flexor retinaculum, scaphoid, and trapezium

lateral 1st metacarpal

draws 1st metacarpal medially to oppose little finger toward center of palm

median nerve

A

Opponens Pollicis

77
Q

Opponens Pollicis

A

flexor retinaculum, scaphoid, and trapezium

lateral 1st metacarpal

draws 1st metacarpal medially to oppose little finger toward center of palm

median nerve

78
Q

flexor retinaculum, scaphoid, and trapezium

lateral side of proximal phalanx of thumb

flexes thumb

median and ulnar nerves

A

Flexor Pollicis Brevis

79
Q

Flexor Pollicis Brevis

A

flexor retinaculum, scaphoid, and trapezium

lateral side of proximal phalanx of thumb

flexes thumb

median and ulnar nerves

80
Q

HYPOTHENAR COMPARTMENT MUSCLES

A

Abductor Digiti Minimi
Flexor Digiti Minimi Brevis
Opponens Digiti Minimi

81
Q

pisiform

medial side of proximal phalanx of little finger

Abducts and flexes little (5th) finger

ulnar nerve

A

Abductor Digiti Minimi

82
Q

Abductor Digiti Minimi

A

pisiform

medial side of proximal phalanx of little finger

Abducts and flexes little (5th) finger

ulnar nerve

83
Q

flexor retinaculum and hamate (hook of hamate)

medial side of proximal phalanx of little finger

flexes little (5th) finger

ulnar nerve

A

Flexor Digiti Minimi Brevis

84
Q

Flexor Digiti Minimi Brevis

A

flexor retinaculum and hamate (hook of hamate)

medial side of proximal phalanx of little finger

flexes little (5th) finger

ulnar nerve

85
Q

flexor retinaculum and hamate (hook of hamate)

medial 5th metacarpal

draws 5th metacarpal anteriorly, bringing little finger (5th digit) into opposition with thumb

ulnar nerve

A

Opponens Digiti Minimi

86
Q

Opponens Digiti Minimi

A

flexor retinaculum and hamate (hook of hamate)

medial 5th metacarpal

draws 5th metacarpal anteriorly, bringing little finger (5th digit) into opposition with thumb

ulnar nerve

87
Q

OTHER MUSCLES OF THE HAND

A

Adductor Pollicis
Lumbricals

Palmar Interossei
Dorsal Interossei

88
Q

anterior (palmar side) of 2nd and 3rd metacarpals

medial side of proximal phalanx of thumb

draws 1st metacarpal medially toward center of palm (adducts thumb)

ulnar nerve

A

Adductor Pollicis

89
Q

Adductor Pollicis

A

anterior (palmar side) of 2nd and 3rd metacarpals

medial side of proximal phalanx of thumb

draws 1st metacarpal medially toward center of palm (adducts thumb)

ulnar nerve

90
Q

distal portion of flexor digitorum profundus tendons

distal portion of extensor digitorum tendons

flexes and extends fingers

median and ulnar nerves

A

Lumbricals

91
Q

Lumbricals

A

distal portion of flexor digitorum profundus tendons

distal portion of extensor digitorum tendons

flexes and extends fingers

median and ulnar nerves

92
Q

palmar surfaces of metacarpals

digits 2, 4 and 5

adducts and flexes fingers (acting with lumbricals)

ulnar nerve

A

Palmar Interossei

93
Q

Palmar Interossei

A

palmar surfaces of metacarpals

digits 2, 4 and 5

adducts and flexes fingers (acting with lumbricals)

ulnar nerve

94
Q

adjacent sides of two metacarpals (bipennate muscles)

digits 2, 3, 4

abduct digits; extend fingers (acting with lumbricals)

ulnar nerve

A

Dorsal Interossei

95
Q

Dorsal Interossei

A

adjacent sides of two metacarpals (bipennate muscles)

digits 2, 3, 4

abduct digits; extend fingers (acting with lumbricals)

ulnar nerve

A&P I (21 decks)

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