Muscles Flashcards
1
Q
Rec Fem origin and insertion
A
Anterior inferior iliac spine, reflected head above the acetabulum to the patella upper border
2
Q
Rec fem action
A
Flex hip extend knee
3
Q
Rec fem nerve supply
A
Femoral L234
4
Q
Sartorius origin and insertion
A
Anterior superior iliac spine of innominate
Medial side of tibia with gracilis & semitendinosus
5
Q
Sartorius action
A
Flexes knee and hip
Laterally rotates and abducts thigh
Medially rotates tibia on femur
6
Q
Sartorius nerve supply
A
Femoral L23
7
Q
Gluteus maximus origin and insertion
A
Gluteal surface of ilium, iliac crest, coccyx, sacrum & sacrotuberous ligament
Gluteal tuberosity of femur - 1/4
other 3/4s make up iliotibial tract
8
Q
Gluteus maximus action
A
Hip extension, lateral rotation and assists abduction
9
Q
Gluteus maximus nerve supply
A
Inferior gluteal nerve L5S12
10
Q
Semitendinosus origin and insertion
A
Ischial tuberosity of innominate
Medial surface of tibia medial condyle
11
Q
Semitendinosus action
A
Flex knee extend hip
12
Q
Semitendinosus nerve supply
A
Sciatic nerve L5S12
13
Q
Semimembranosus origin and insertion
A
Ischial tuberosity of innominate
Posteromedial surface of tibia medial condyle
14
Q
Semimembranosus action
A
Flex knee extend hip
15
Q
Semimembranosus nerve supply
A
Sciatic L5S12
16
Q
Biceps femoris origin and insertion
A
Ischial tuberosity
Head of fibula
17
Q
Biceps femoris action
A
Flex knee extend hip
18
Q
Biceps femoris nerve supply
A
Sciatic L5S12
19
Q
Adductor Magnus origin and insertion
A
Ischial tuberosity of innominate
Upper part of linea aspera & adductor tubercle of femur
20
Q
Adductor Magnus action
A
Adduct thigh. Rotate hip depending on thigh position. Assist hip extension
21
Q
Adductor Magnus nerve supply
A
Sciatic L4 - Hamstring part
Obturator L23
22
Q
Tibialis anterior origin and insertion
A
Upper 2/3rds of lateral surface of tibia & Interosseous Membrane
Medial & Inferior Surfaces, Medial Cuneiform & Base of 1st Metatarsal
23
Q
Tibialis anterior action
A
Dorsiflex and inversion
24
Q
Tibialis anterior nerve supply
A
Deep peroneal L45
25
Gastrocnemius origin and insertion
Lateral Head: Lateral Aspect of Lateral Femoral Condyle
Medial Head: Popliteal Surface of Femur Superior to Medial Femoral Condyle
Posterior Surface Calcaneus via Calcaneal Tendon (Achilles Tendon)
26
Gastrocnemius action
Plantarflex ankle knee flexion
27
Gastrocnemius nerve supply
Tibial nerve S12
28
Vastus lateralis origin and insertion
Upper lateral part of intertrochanteric line, lower border of greater trochanter, lateral side of gluteal tuberosity, upper half of lateral lip of linea aspera.
Base & lateral border of the patella, blends with rectus femoris.
29
Vastus lateralis action
Extend knee
30
Vastus lateralis nerve supply
Femoral L234
31
Vastus medialis origin and insertion
Medial part intertrochanteric line, medial shaft of upper femur, med lip of linea aspera, med supracondylar line and adductor magnus tendon
Medial border patella
32
Vastus medialis action
Extend knee
33
Vastus medialis nerve supply
Femoral L234
34
Soleus origin and insertion
Posterior Aspect of Head Fibula
Superior ¼ Posterior Surface Tibia
Soleal Line & Medial Border Tibia
Posterior Surface Calcaneus via Calcaneal Tendon (Achilles Tendon)
35
Soleus action
Plantarflex
36
Soleus nerve supply
Tibial S12
37
Fibularis longus origin and insertion
Head & Superior 2/3 of Lateral Surface Fibula
Base 1st Metatarsal
Medial Cuneiform
38
Fibularis longus action
Eversion and assist plantarflexion
39
Fibularis longus nerve supply
Superficial peroneal L5 S1
40
Flexor digitorum longus origin and insertion
Medial Part Posterior Surface
Tibia inferior to Soleal Line
Broad Tendon to Fibula
Base Distal Phalanges Digits 2-5
41
Flexor digitorum longus action
Flexes.distal and proximal interphalangeal joints, metatarsophalangeal and ankle joints.
42
Flexor digitorum longus nerve supply
Tibial nerve L5S12
43
Extensor digitorum longus origin and insertion
Lateral Condyle Tibia
Upper 2/3rds of ant. surface of fibula
Interosseous Membrane
Middle & Distal Phalanges of Lateral Four Digits
44
Extensor digitorum longus action
Dorsiflexes interphalangeal, metatarsophalangeal and ankle joints
45
Extensor digitorum longus nerve supply
Deep peroneal L5S1
46
Extensor hallucis longus origin and insertion
Middle Part Anterior Surface Fibula
Interosseous Membrane
Dorsal Aspect of Base Distal
Phalanx of Big Toe
47
Extensor hallucis longus action
Dorsiflexes joints of hallux and the ankle
48
Extensor hallucis longus nerve supply
Deep peroneal L5S1
49
Rhomboid major origin and insertion
Spinous process of T2-T5 vertebrae
Medial border of scapula inferior to spina scapulae
50
Rhomboid major action
Retract, medially rotate and stabilise scapula
51
Rhomboid major nerve supply
Dorsal scapular C5
52
Rhomboid minor origin and insertion
Spinous process of C7-T1 vertebrae
Medial border of scapula superior to spina scapulae
53
Rhomboid minor action
Retract, medially rotate and stabilise scapula
54
Rhomboid minor nerve supply
Dorsal scapular C5
55
Serratus anterior origin and insertion
Upper 8/9 ribs outer surface & intercostal fascia
costal surface, medial border of scapula
56
Serratus anterior action
Protract and laterally rotate scapula
57
Serratus anterior nerve supply
Long thoracic C567
58
Upper trapezius origin and insertion
Medial third of the superior nuchal line, external occipital protuberance, nuchal ligament
Lateral third of clavicle
59
Upper trapezius action
Elevates & laterally rotates pectoral girdle
Extends & laterally flexes the neck
60
Upper trapezius nerve supply
Spinal accessory nerve xi
61
Lower trapezius origin and insertion
Spinous processes and supraspinous ligaments of vertebrae T4-T12
lateral apex of the medial end of scapular spine
62
Lower trapezius action
Elevates & laterally rotates pectoral girdle
Extends & laterally flexes the neck
Depress scapula
63
Lower trapezius nerve supply
Spinal accessory nerve xi
64
Middle trapezius nerve supply
Spinal accessory nerve xi
65
Middle trapezius action
Retracts, elevates & laterally rotates pectoral girdle
Extends & laterally flexes the neck
66
Middle trapezius origin and insertion
Spinous processes and supraspinous ligaments of vertebrae c7-t4
Medial acromial margin, superior crest of spine of scapula
67
Pectoralis major origin and insertion
Medial half of the anterior border of the clavicle, anterior surface of the sternum, anterior surface of the upper 6 costal cartilages and the 6th rib.
Laminated tendon into lateral lip intertubercular groove
68
Pectoralis major action
Flexes, medially rotates and adducts arm @ the shoulder
Sternocostal fibres extend the flexed arm
69
Pectoralis major nerve supply
Medial pectoral nerve: C8, T1
Lateral pectoral nerve: C5, C6, C7
70
Biceps brachii origin and insertion
Long head: supraglenoid tubercle of the scapula
Short head: apex of coracoid process
Bellies fuse at posterior part of radial tuberosity and the deep fascia of the forearm via the bicipital aponeurosis
71
Biceps brachii action
Flex elbow and shoulder
Supinate wrist
72
Biceps brachii nerve supply
Musculocutaneous C56
73
Latissimus dorsi origin and insertion
Spinous processes of T7 – L5 vertebrae
Iliac crest of sacrum.
Thoracolumbar fascia.
Inferior angle of the scapula.
Lower three or four ribs.
Floor of intertubercular (bicipital) groove of humerus.
74
Latissimus Dorsi action
Adducts, medially rotates & extends the arm @ the shoulder
75
Latissimus dorsi nerve supply
Thoracodorsal nerve: C6 C7 C8
76
Teres major origin and insertion
Lower 1/4 of lat. border & dorsal surface of inferior angle of scapula
Medial lip of intertubercular groove on humerus
77
Teres major action
Adducts, medially rotates the arm @ the shoulder
78
Teres major nerve supply
Lower subscapular C67
79
Supraspinatus origin and insertion
Supraspinous fossa of the scapula
Superior aspect of the greater tubercle of the humerus
80
Supraspinatus action
Initiate abduction @ shoulder
81
Supraspinatus nerve supply
Suprascapular C56
82
Subscapularis origin and insertion
Medial 2/3rds of subscapular fossa on scapula
Lesser tubercle of humerus
83
Subscapularis action
Medially rotates arm @ shoulder
84
Subscapularis nerve supply
Upper & lower subscapular nerve C5, C6, C7
85
Infraspinatus origin and insertion
Medial 2/3rds of infraspinous fossa of scapula
Inferior facet of greater tubercle on humerus
86
Infraspinatus action
Laterally rotates arm @ shoulder
87
Infraspinatus nerve supply
Suprascapular nerve C56
88
Brachioradialis origin and insertion
Upper 2/3rds of lat. supracondylar ridge of humerus
lat. intermuscular septum
Lat. surface of radius above styloid process
89
Brachioradialis action
Elbow flexion in mid position of forearm
90
Brachioradialis nerve supply
Radial C56
91
Triceps brachii origin and insertion
Lateral: above spiral groove on posterior surface of humerus
long: infraglenoid tubercle of scapula
Medial: below spiral groove on med. aspect of posterior surface of humerus
Posterior part of olecranon and adjacent deep fascia of forearm
92
Triceps brachii action
Elbow extension
Long head extends flexed humerus and adducts
93
Triceps nerve supply
Radial C678
94
Flexor carpi radialis origin and insertion
Common flexor origin- humerus medial epicondyle
2nd & 3rd metacarpals palmar surface
95
Flexor carpi radialis action
Flexion and radial deviation
96
Flexor carpi radialis nerve supply
Median nerve: C6, C7
97
Flexor carpi ulnaris origin and insertion
Common flexor origin - medial epicondyle of humerus
Hook of hamate
Base of 5th metacarpal
98
Flexor carpi ulnaris action
Wrist flexion and ulnar deviation
99
Flexor carpi ulnaris nerve supply
Ulnar nerve c78
100
Palmaris longus origin and insertion
Common flexor origin - medial epicondyle of humerus
Flexor retinaculum
Palmar aponeurosis
101
Palmaris longus action
Flexes wrist
102
Palmaris longus nerve supply
Median c8
103
Extensor carpi radialis longus origin and insertion
Lower 1/3rd lateral supracondylar ridge of humerus and adjacent intermuscular septum.
Post. surface base of 2nd metacarpal
104
Extensor carpi radialis longus action
Extend wrist and radial deviation
105
Extensor carpi radialis longus nerve supply
Radial C67
106
Extensor carpi radialis brevis origin and insertion
Lat. epicondyle of humerus via common extensor tendon
Post. surface base of 3rd metacarpal
107
Extensor carpi radialis brevis action
Extends and radially deviates wrist
108
Extensor carpi radialis brevis nerve supply
Posterior interosseous branch of radial nerve: C6, C7
109
Extensor digitorum origin and insertion
Lat. epicondyle of humerus via common extensor tendon
Dorsal digital expansion to base of post. surface of distal & middle phalanges of fingers
110
Extensor digitorum action
Extends in turn: distal interphalangeal, proximal interphalangeal, metacarpophalangeal and wrist joints.
111
Extensor digitorum nerve supply
Posterior interosseous branch of radial nerve: C7, C8.
112
Extensor carpi ulnaris origin and insertion
Lateral epicondyle of humerus via common extensor tendon via aponeurosis to post. border of ulna
Med. side base of 5th metacarpal
113
Extensor carpi ulnaris action
Extends and ulnar deviates the wrist
114
Extensor carpi ulnaris nerve supply
Posterior interosseous branch of radial nerve: C7, C8.
115
Extensor pollicis longus origin and insertion
Middle 1/3 posterior surface of ulna and adjacent interosseous membrane
Dorsal surface base of distal phalanx of thumb
116
Extensor pollicis longus action
Extends all thumb joints, extends and abducts the wrist.
117
Extensor pollicis longus nerve supply
Posterior interosseous branch of radial nerve: C7, C8.
118
Abductor pollicis longus origin and insertion
Upper post. surface of ulna, middle 1/3 of posterior surface of radius & interosseous membrane
Radial side of the base of the first metacarpal
119
Abductor pollicis longus action
Abducts the thumb
120
Abductor pollicis longus nerve supply
Posterior interosseous branch of radial nerve: C7, C8.
121
Rectus abdominus origin and insertion
Symphysis pubis
pubic crest
Xiphoid process
costal cartilages of 5th, 6th, & 7th ribs
122
Rectus abdominus action
Flexes the trunk
123
Rectus abdominus nerve supply
Lower 6 or 7 thoracic nerves
124
External oblique origin and insertion
Outer borders of lower 8 ribs & their costal cartilages
Outer lip of ant. 2/3rds of iliac crest - forms and aponeurosis that fuses with the one form the other side @ linear alba
inguinal ligament: lower free border between ant. sup. iliac spine & pubic tubercle
125
External oblique action
Trunk flexion & lateral flexion
Trunk rotation
126
External oblique nerve supply
Lower 6 or 7 thoracic and 1st lumbar nerves.
127
Sternocleidomastoid origin and insertion
Manubrium sterni ant. surface
upper surface of medial 1/3 of clavicle
Temporal bone mastoid process
superior nuchal line of occipital bone
128
Sternocleidomastoid action
Flexes and laterally flexes neck
Rotates head
129
Sternocleidomastoid nerve supply
Accessory nerve.
