Muscles Flashcards
(109 cards)
1
Q
Trapezius
A
O: occipital bone, spinous processes of thoracic vertebrae
I: Scapula (acromion), Clavicle
A: Retracts Scapula
2
Q
Latissimus Dorsi
A
O: Spinous processes of inferior thoracic vertebrae and lumbar and sacral vertebrae, ribs, thoracolumbar fascia
I: Humerus: middle lip of intertubercular sulcus
A: Shoulder movements - adduction
3
Q
Levator Scapulae
A
O: Transverse processes of first four cervical vertebrae
I: Vertebral border of Scapula
A: Elevates scapula
4
Q
Rhomboids
A
O: Spinous processes of vertebrae
I: Vertebral border of scapula
A: Retract Scapula
5
Q
Serratus Posterior Superior
A
O: Spinous processes (cervical and thoracic)
I: Ribs
A: Elevate ribs
6
Q
Serratus Posterior Inferior
A
O: Spinous Processes (thoracic and lumbar)
I: Ribs
A: Depresses ribs
7
Q
Serratus Anterior
A
O: Anterior margins of ribs
I: Anterior surface of vertebral border of scapula
A: Protracts shoulder
8
Q
Occipitofrontalis
A
Wrinkle forehead and raise eyebrows
9
Q
Orbicularis Oculi
A
Closes eye
10
Q
Orbicularis Oris
A
Closes mouth, kissing muscle
11
Q
Levator Labii Superioris
A
Elevates upper lip
12
Q
Zygomaticus Major/minor
A
Smiling muscles
13
Q
Buccinator
A
Hold things in mouth. Puff cheeks out (trumpet players)
14
Q
Platysma
A
Tenses the anterior neck. Depresses the mandible
15
Q
Masseter
A
Elevates mandible and closes jaw
16
Q
Temporalis
A
Elevates mandible and closes jaw
17
Q
Medial pterygoid
A
Elevates mandible and closes jaw. Moves mandible side to side
18
Q
Lateral pterygoid
A
Depresses mandible and opens jaw
19
Q
Longus Capitis
A
O: Transverse processes of C4-C6
I: Base of occipital bone
A: Neck flexion
20
Q
Longus Colli
A
O: Thoracic and cervical vertebrae
I: Transverse processes of cervical vertebrae
A: Flexes neck
21
Q
Quadratus Lumborum
A
O: Iliac crest
I: Last rib and lumbar transverse processes
A: Depresses the ribs
22
Q
Scalenes
A
O: Transverse and costal processes
I: Anterior and middle - first rib.
I: Posterior- second rib
A: elevate ribs
23
Q
Sternocleidomastoid
A
O: Sternal end of clavicle, manubrium
I: Mastoid process
A: Neck flexion
24
Q
Diaphragm
A
Separates the thoracic and abdominal cavities
Contraction: breathe out
Relaxing: breathe in
25
External Intercostals
O: Inferior border of ribs
I: Superior border of the rib below
a: Elevate ribs - inhalation
26
Pectoralis minor
O: Ribs
I: Corocoid process of scapula
A: Elevates ribs
27
Rectus Abdominis
O: Pubis
I: Ribs, Xiphoid process
A: Depress ribs, compress abdomen
28
Internal obliques
O: Thoracolumbar Fascia
I: Ribs 9-12, Linea alba
A: Depress ribs (exhalation)
29
External Obliques
O: Ribs 5-12
I: Linea alba
A: Depress ribs (exhalation)
30
Transverse Abdominis
O: Ribs 7-12, Iliac crest, thoracolumbar fascia
I: Linea alba & Pubis
A: Compress abdomen
31
Internal intercostals
O: Superior border of ribs
I: Inferior border of ribs above
A: Depress ribs (exhalation)
32
Subclavius
O: First rib
I: Clavicle
A: Depresses and protracts shoulder
33
Deltoid
O: Clavicle and scapula
I: Deltoid tuberosity
A: Abduction
34
Pectoralis Major
O: Clavicle, Sternum, Manubrium, Ribs
I: Lateral lipe of intertubercular sulcus
A: Horizontal adduction
35
Corachobrachialis
O: Coracoid process
I: Humerus
A: Adduction
36
Biceps Brachii
O: short head - coracoid process
O: Long head - supraglenoid tubercle
I: Radial tuberosity
A: Elbow flexion
37
Teres Major
O: inferior angle of scapula
I: Medial lip of intertubercular sulcus
A: Medial rotation at shoulder
38
Triceps Brachii
O: Long head - infraglenoid tubercle of scapula
O: Lateral head and medial head - humerus
I: Olecranon of ulna
A: Elbow extension
39
Supraspinatus
O: Supraspinous fossa
I: Greater tubercle
A: Shoulder abduction
40
Infraspinatus
O: Infraspinous fossa
I: Greater tubercle
A: Lateral rotation of shoulder
41
Teres Minor
O: Inferior angle of scapula
I: Greater tubercle
A: Shoulder adduction
42
Subscapularis
O: Subscapular fossa
I: Lesser tubercle
A: Medial rotation at shoulder
43
Brachialis
O: distal half of humerus
I: Ulnar tuberosity and coronoid process
A: Elbow flexion
44
Brachioradialis
O: lateral epicondyle
I: Radial styloid process
A: Elbow flexion
45
Pronator Teres
O: Medial epicondyle
I: Radius
A: Pronates forearm and hand
46
Anconeus
O: Lateral epicondyle
I: Olecranon and ulnar shaft
A: Elbow Extension
47
Pronator Quadratus
O: Distal Ulna
I: Distal radius
A: Pronates forearm and hand
48
Supinator
O: Lateral epicondyle
I: Distal to radial tuberosity
A: Supinates forearm and hand
49
Flexor Carpi Radialis
O: Medial Epicondyle
I: Bases of second and third metacarpals
A: Wrist Flexion
50
Flexor Carpi Ulnaris
O: Medial epicondyle
I: Pisiform, hamate, and base of fifth metacarpal
A: Wrist flexion
51
Palmaris Longus
O: Medial epicondyle
I: Flexor retinaculum
A: Wrist flexion
52
Flexor digitorum superficialis
O: Medial epicondyle
I: bases of middle phalanges 2-5
A: Wrist flexion and finger flexion
53
Flexor digitorum profundus
O: Interosseous membrane, coronoid process
I: Bases of distal phalanges 2-5
A: Flexion at distal interphalangeal joints
54
Extensor carpi radialis longus
O: lateral supracondylar ridge of humerus
I: Base of second metacarpal
A: Wrist extension
55
Extensor carpi radialis brevis
O: lateral epicondyle of humerus
I: base of third metacarpal
A: Wrist extension
56
Extensor carpi ulnaris
O: lateral epicondyle
I: Posterior surface of digits 2-5
A: wrist and finger extension
57
Abductor pollicis longus
I: first metacarpal bone and trapezium
A: thumb abduction
58
Extensor pollicis longus
I: base of distal phalanx of thumb
A: thumb extension
59
extensor pollicis brevis
I: base of proximal phalanx of thumb
A: thumb extension
60
Flexor pollicis longus
I: Base of distal phalanx of thumb
A: thumb flexion
61
Flexor digitorum profundus
I: Bases of distal phalanges of digits 2-5
A: Flexion at distal interphalangeal joints
62
Extensor digitorum
I: Phalanges 2-5
A: Extension at finger joints
63
Extensor indicus
I: Proximal phalanx of index finger
A: Extension of index finger
64
Thenar eminence
opponens pollicis
abductor pollicis brevis
flexor pollicis brevis
65
Hypothenar Eminence
abductor digiti minimi
flexor digiti minimi brevis
opponens digiti minimi
66
Psoas Major
O: Transverse processes of lower thoracic and lumbar vertebrae
I: Lesser trochanter
A: Hip flexion
67
Iliacus
O: Iliac Fossa
I: Lesser trochanter
A: Hip flexion
68
Gluteus Maximus
O: Iliac crest, ilium, sacrum, coccyx, thoracolumbar fascia
I: Iliotibial band and gluteal tuberosity
A: Extension and lateral rotation at hip
69
Gluteus Medius
O: Iliac crest
I: greater trochanter
A: hip abduction
70
Gluteus Minimus
O: ilium
I: greater trochanter
A: hip abduction
71
Tensor Fasciae Latae
O: iliac crest
I: Iliotibial band
A: knee extension
72
Iliotibial band
O: Iliac crest
I: lateral condyle of tibia
A: hip extension and abduction, lateral rotation at knee, lateral knee stabilization
73
Adductor longus
O: inferior ramus of pubis
I: linea aspera
A: hip adduction
74
Adductor magnus
O: inferior ramus of pubis
I: linea aspera
A: hip adduction
75
Adductor Brevis
O: inferior ramus of pubis
I: linea aspera
A: hip adduction
76
Gracilis
O: inferior ramus of pubis
I: medial surface of tibia
A: hip adduction
77
Pectineus
O: superior ramus of pubis
I: pectineal line
A: Hip adduction and flexion
78
Piriformis
O: Sacrum
I: Greater trochanter
A: lateral rotation of hip
79
Superior Gemellus
O: Ischial spine and ischial tuberosity
I: greater trochanter
A: lateral rotation of hip
80
Obturator externus/internus
O: obturator foramen
I: greater trochanter
A: lateral rotation of hip
81
Inferior Gemellus
O: Ischial spine and ischial tuberosity
I: Greater trochanter
A: Lateral rotation of hip
82
Quadratus Femoris
O: Ischial tuberosity
I: intertrochanteric crest
A: lateral rotation of hip
83
Rectus Femoris
O: Iliac spine
I: tibial tuberosity via quadriceps tendon
A: knee extension
84
Vastus Lateralis, intermedius, medialis
O: Linea aspera
I: tibial tuberosity via quadriceps tendon
A: knee extension
85
Semimembranosus
O: Ischial tuberosity
I: medial condyle
A: knee flexion
86
Semitendinosus
O: Ischial tuberosity
I: medial surface of tibia
A: knee flexion
87
Biceps femoris
O: long head - ischial tuberosity
O: short head - linea aspera
I: head of fibula, lateral condyle of tibia
A: knee flexion
88
Sartorius
O: iliac spine
I: Tibial tuberosity
A:knee flexion
89
Popliteus
O: lateral condyle
I: tibial shift
A: knee flexion
90
Tibialis Anterior
O: Lateral condyle
I: base of first metatarsal bone and medial cuneiform
A: dorsiflexion
91
Extensor Hallucis Longus
O: Fibula
I: distal phalanx of big toe
A: big toe extension
92
Fibularis Longus
O: head of fibula
I: base of first metatarsal bone and medial cuneiform
A: plantar flexion
93
Fibularis Brevis
O: Mid fibula
I: base of fifth metatarsal bone
A: plantar flexion
94
Gastrocnemius
O: Femur condyles
I: calcaneus
A: plantar flexion
95
Soleus
O: Head of fibula
I: Calcaneus
A: plantar flexion
96
Plantaris
O: lateral supracondylar ridge
I: Calcaneus
A: Plantar Flexion
97
Tibialis Posterior
O: Interosseus membrane
I: navicular, 3 cuneiforms, cuboid, second, third, fourth metatarsal bones
A: plantar flexion
98
Flexor digitorum Longus
O: Tibia
I: DIstale phalanges of digits 2-5
A: Plantar flexion
99
Flexor hallucis Longus
O: Fibula
I: Distal Phalanx of big toe
A: Plantar flexion
100
Flexor Hallucis Brevis
Flexion of big toe
101
Adductor Hallucis
Adduction of big toe
102
Abductor Hallucis
Abduction of big toe
103
Extensor Digitorum Brevis
Extension of digits 2-5
104
Flexor Digitorum Brevis
Flexion of digits 2-5
105
Abductor Digiti Minimi
Abduction of pinky toe
106
Flexor Digiti Minimi Brevis
Flexion of pinky toe
107
Lumbricals
Flexion at metatarsophalangeal joints, extension at interphalangeal joints
108
Dorsal Interossei
Abduction
109
Plantar Interossei
Adduction
