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

Exam 5 - Muscle Spreadsheet Flashcards

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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
Anconeus
lateral epicondyle of humerus olecranon of ulna assists triceps in extending forearm at elbow joint and stabilizes elbow joint radial nerve
26
SUPERFICIAL MUSCLES OF THE FOREARM, ANTERIOR (FLEXOR) COMPARTMENT
``` Flexor Carpi Radialis Palmaris Longus Flexor Carpi Ulnaris Flexor Digitorum Superficialis Pronator Teres ```
27
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
Flexor Carpi Radialis
28
Flexor Carpi Radialis
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
29
medial epicondyle of humerus via the common flexor tendon flexor retinaculum and palmar aponeurosis flexes hand at wrist and tightens palmar aponeurosis median nerve
Palmaris Longus
30
Palmaris Longus
medial epicondyle of humerus via the common flexor tendon flexor retinaculum and palmar aponeurosis flexes hand at wrist and tightens palmar aponeurosis median nerve
31
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
Flexor Carpi Ulnaris
32
Flexor Carpi Ulnaris
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
33
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
Flexor Digitorum Superficialis
34
Flexor Digitorum Superficialis
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
35
medial epicondyle of humerus radius pronates forearm (at elbow) median nerve
Pronator Teres
36
Pronator Teres
medial epicondyle of humerus radius pronates forearm (at elbow) median nerve
37
DEEP MUSCLES OF THE FOREARM, ANTERIOR (FLEXOR) COMPARTMENT
Flexor pollicis longus Flexor Digitorum Profundus Pronator quadratus
38
radius and interosseous membrane distal phalanx of thumb flexes distal phalanx of thumb median nerve
Flexor pollicis longus
39
Flexor pollicis longus
radius and interosseous membrane distal phalanx of thumb flexes distal phalanx of thumb median nerve
40
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
Flexor Digitorum Profundus
41
Flexor Digitorum Profundus
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
ulna (distal shaft) radius (distal shaft) pronates forearm (at radioulnar joint) median nerve
Pronator quadratus
43
Pronator quadratus
ulna (distal shaft) radius (distal shaft) pronates forearm (at radioulnar joint) median nerve
44
SUPERFICIAL MUSCLES OF THE FOREARM, POSTERIOR (EXTENSOR) COMPARTMENT
``` Brachioradialis Extensor Carpi Radialis Longus Extensor Carpi Radialis Brevis Extensor Digitorum Extensor Digiti Minimi Extensor Carpi Ulnaris ```
45
humerus radius (near styloid process) flexes forearm at elbow; supinates and pronates forearm (back to neutral). radial nerve
Brachioradialis
46
Brachioradialis
humerus radius (near styloid process) flexes forearm at elbow; supinates and pronates forearm (back to neutral). radial nerve
47
distal humerus radial posterior hand (posterior side of base of second metacarpal) extends and abducts hand at wrist joint (radial deviation) radial nerve
Extensor Carpi Radialis Longus
48
Extensor Carpi Radialis Longus
distal humerus radial posterior hand (posterior side of base of second metacarpal) extends and abducts hand at wrist joint (radial deviation) radial nerve
49
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
Extensor Carpi Radialis Brevis
50
Extensor Carpi Radialis Brevis
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
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
Extensor Digitorum
52
Extensor Digitorum
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
lateral epicondyle of humerus via common extensor tendon phalanx of little finger (5th digit) extends 5th digit deep radial nerve
Extensor Digiti Minimi
54
Extensor Digiti Minimi
lateral epicondyle of humerus via common extensor tendon phalanx of little finger (5th digit) extends 5th digit deep radial nerve
55
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
Extensor Carpi Ulnaris
56
Extensor Carpi Ulnaris
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
DEEP MUSCLES OF THE FOREARM, POSTERIOR (EXTENSOR) COMPARTMENT
``` Abductor Pollicis Longus Extensor Pollicis Brevis Extensor Pollicis Longus Extensor Indicis Supinator ```
58
posterior radius and ulna (and interosseous membrane) base of thumb (at 1st metacarpal) abducts and extends thumb deep radial nerve
Abductor Pollicis Longus
59
Abductor Pollicis Longus
posterior radius and ulna (and interosseous membrane) base of thumb (at 1st metacarpal) abducts and extends thumb deep radial nerve
60
posterior radius (and interosseous membrane) proximal phalanx of thumb extends thumb deep radial nerve
Extensor Pollicis Brevis
61
Extensor Pollicis Brevis
posterior radius (and interosseous membrane) proximal phalanx of thumb extends thumb deep radial nerve
62
posterior ulna (and interosseous membrane) distal phalanx of thumb extends thumb deep radial nerve
Extensor Pollicis Longus
63
Extensor Pollicis Longus
posterior ulna (and interosseous membrane) distal phalanx of thumb extends thumb deep radial nerve
64
ulna (and interosseous membrane) index finger (extensor expansion of 2nd digit) extends 2nd digit (and helps extend hand) deep radial nerve
Extensor Indicis
65
Extensor Indicis
ulna (and interosseous membrane) index finger (extensor expansion of 2nd digit) extends 2nd digit (and helps extend hand) deep radial nerve
66
humerus (lateral epicondyle) and ulna (proximal portion) proximal radius supinates forearm deep radial nerve
Supinator
67
Supinator
humerus (lateral epicondyle) and ulna (proximal portion) proximal radius supinates forearm deep radial nerve
68
PRONATORS AND SUPINATORS
Pronator Teres Pronator quadratus Supinator Brachioradialis
69
medial epicondyle of humerus radius pronates forearm (at elbow) median nerve
Pronator Teres
70
Pronator Teres
medial epicondyle of humerus radius pronates forearm (at elbow) median nerve
71
ulna (distal shaft) radius (distal shaft) pronates forearm (at radioulnar joint) median nerve
Pronator quadratus
72
Pronator quadratus
ulna (distal shaft) radius (distal shaft) pronates forearm (at radioulnar joint) median nerve
73
THENAR COMPARTMENT MUSCLES
Abductor Pollicis Brevis Opponens Pollicis Flexor Pollicis Brevis
74
flexor retinaculum, scaphoid, and trapezium lateral side of proximal phalanx of thumb abducts thumb (and helps oppose it) median nerve
Abductor Pollicis Brevis
75
Abductor Pollicis Brevis
flexor retinaculum, scaphoid, and trapezium lateral side of proximal phalanx of thumb abducts thumb (and helps oppose it) median nerve
76
flexor retinaculum, scaphoid, and trapezium lateral 1st metacarpal draws 1st metacarpal medially to oppose little finger toward center of palm median nerve
Opponens Pollicis
77
Opponens Pollicis
flexor retinaculum, scaphoid, and trapezium lateral 1st metacarpal draws 1st metacarpal medially to oppose little finger toward center of palm median nerve
78
flexor retinaculum, scaphoid, and trapezium lateral side of proximal phalanx of thumb flexes thumb median and ulnar nerves
Flexor Pollicis Brevis
79
Flexor Pollicis Brevis
flexor retinaculum, scaphoid, and trapezium lateral side of proximal phalanx of thumb flexes thumb median and ulnar nerves
80
HYPOTHENAR COMPARTMENT MUSCLES
Abductor Digiti Minimi Flexor Digiti Minimi Brevis Opponens Digiti Minimi
81
pisiform medial side of proximal phalanx of little finger Abducts and flexes little (5th) finger ulnar nerve
Abductor Digiti Minimi
82
Abductor Digiti Minimi
pisiform medial side of proximal phalanx of little finger Abducts and flexes little (5th) finger ulnar nerve
83
flexor retinaculum and hamate (hook of hamate) medial side of proximal phalanx of little finger flexes little (5th) finger ulnar nerve
Flexor Digiti Minimi Brevis
84
Flexor Digiti Minimi Brevis
flexor retinaculum and hamate (hook of hamate) medial side of proximal phalanx of little finger flexes little (5th) finger ulnar nerve
85
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
Opponens Digiti Minimi
86
Opponens Digiti Minimi
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
OTHER MUSCLES OF THE HAND
Adductor Pollicis Lumbricals Palmar Interossei Dorsal Interossei
88
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
Adductor Pollicis
89
Adductor Pollicis
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
distal portion of flexor digitorum profundus tendons distal portion of extensor digitorum tendons flexes and extends fingers median and ulnar nerves
Lumbricals
91
Lumbricals
distal portion of flexor digitorum profundus tendons distal portion of extensor digitorum tendons flexes and extends fingers median and ulnar nerves
92
palmar surfaces of metacarpals digits 2, 4 and 5 adducts and flexes fingers (acting with lumbricals) ulnar nerve
Palmar Interossei
93
Palmar Interossei
palmar surfaces of metacarpals digits 2, 4 and 5 adducts and flexes fingers (acting with lumbricals) ulnar nerve
94
adjacent sides of two metacarpals (bipennate muscles) digits 2, 3, 4 abduct digits; extend fingers (acting with lumbricals) ulnar nerve
Dorsal Interossei
95
Dorsal Interossei
adjacent sides of two metacarpals (bipennate muscles) digits 2, 3, 4 abduct digits; extend fingers (acting with lumbricals) ulnar nerve

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