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Chiro Essentials Anatomy > Muscles > Flashcards

Muscles Flashcards

1
Q

Sternocleidomastoid origin?

A

Mastoid process and lateral third of superior nuchal line

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2
Q

Sternocleidomastoid insertion?

A

manubrium of sternum and medial 1/3 of clavicle

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3
Q

Sternocleidomastoid action?

A

tilts head toward the shoulder on the same side

Rotates head to the opposite side

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4
Q

Sternocleidomastoid innervation

A

Spinal part of CN XI and ventral rami of C2/3 (proprioception)

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5
Q

Trapezius origin?

A

Medial 1/3 of superior nuchal line, external occipital protuberance, ligamentum nuchae, SP C7, all T vertebrae

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6
Q

Trapezius insertion?

A

lateral 1/3 of clavicle, medial aspect of acromion and spine of scapula

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7
Q

Trapezius action?

A

Shrug shoulder

Retract/rtn of scapula

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8
Q

Trapezius innervation?

A

Spinal part CN XI (motor) and br C3/4 (proprioception)

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9
Q

Latissimus dorsi origin?

A

TL fascia, SP lower T/L, last 4 rib, slip from inf angle of scapula

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10
Q

Latissimus dorsi insertion?

A

floor of the bicipital groove

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11
Q

Latissimus dorsi innervation?

A

Dorsal scapular nerve (C5)

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12
Q

Latissimus dorsi action?

A

elevates scapula

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13
Q

Levator scapulae origin?

A

Post tub of TVP C1-4

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14
Q

Levator scapulae insertion?

A

Superior angle to root of spine of scapula

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15
Q

Levator scapulae innervation?

A

dorsal scapular N (C5)

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16
Q

Levator scapulae action?

A

elevates scapula

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17
Q

Anterior scalene origin?

A

Ant tubercles TVP C3-6

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18
Q

Anterior scalene insertion?

A

Scalene tubercle on sup aspect of 1st rib

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19
Q

Anterior scalene innervation?

A

Ant rami C4-6

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20
Q

Anterior scalene action?

A

ipsilateral lateral flexion of neck

Accessory muscle of respiration

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21
Q

Medial scalene origin?

A

Post tubercles of TVP C-7

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22
Q

Medial scalene insertion?

A

Upper aspect 1st rib (btw groove for subclavian A and scalene tubercle)

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23
Q

Medial scalene innervation?

A

And rami C3-7

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24
Q

Medial scalene action?

A

ipsilateral lateral flexion of neck

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25
Serratus anterior origin?
lateral aspects upper 8 ribs
26
Serratus anterior insertion?
Medial aspect of inferior surface of scapula
27
Serratus anterior innervation?
Long thoracic N (C5-7)
28
Serratus anterior action?
Draws scapula forward and rotates scapula
29
Deltoid origin?
lateral 1/3 clavicle, lateral aspect of acromion, spine of scapula
30
Deltoid insertion?
deltoid tubercle of humerus
31
Deltoid action?
abducts arm 15-90o Ant fibers - flex/med rtn of arm Post fibers ext/lat rtn of arm
32
Deltoid innervation?
axillary N C5-6
33
Pec major origin?
Sternum, upper 6 costal cartilages, medial 1/2 clavicle
34
Pec major insertion?
lateral lip bicipital groove
35
Pec major innervation?
medial and lateral pectoral nerves (C8 and T1, C5-7)
36
Pec major action?
adducts, flex, med rtn arm | Extends flexed arm
37
Supraspinatus origin?
Supraspinous fossa of scapula
38
Supraspinatus insertion?
superior facet of greater tuberosity of humerus
39
Supraspinatus innervation?
Suprascapular N (C5-6)
40
Supraspinatus action?
initiates abduction 0-15o
41
Infraspinatus origin?
infraspinous fossa of scapula
42
Infraspinatus insertion
middle facet of greater tuberosity of humerus
43
Infraspinatus innervation?
suprascapular N (C5-6)
44
Infraspinatus action?
ext rtn humerus
45
Teres Major origin?
oval depression on lateral aspect of dorsum of scapula above inf angle
46
Teres Major insertion?
medial lip of bicipital groove
47
Teres Major innervation?
lower subscapular N (C-6)
48
Teres Major action?
extend, adduct, medially rotate arm
49
Teres Minor origin?
middle 1/3 lateral border of scapula
50
Teres Minor insertion?
inf facet of greater tuberosity of humerus
51
Teres Minor innervaion?
axillary N (C5/6)
52
Teres Minor action?
ext rtn of arm
53
Subscapularis origin?
medial 2/3 of ventral scapula
54
Subscapularis insertion?
lesser tuberosity of humerus
55
Subscapularis innervation?
upper and lower subscapular N (C5/6)
56
Subscapularis action?
int rtn and adducts arm
57
Biceps brachii origin?
``` Coracoid process (short head) Supraglenoid tubercle (long head) ```
58
Biceps brachii insertion?
post border of radial tuberosity of radius
59
Biceps brachii innervation?
Musculocutaneous (C5-7)
60
Biceps brachii action?
Flex, supinate elbow
61
Triceps origin?
``` Infraglenoid tubercle (long head) lateral upper and medial lower parts of the humerus ```
62
Triceps insertion?
olecranon of ulna
63
Triceps innervation?
Radial N C7/8
64
Triceps action?
Ext forearm | Adduct arm
65
Brachioradialis origin?
upper 2/3 lateral supracondylar ridge of humerus
66
Brachioradialis insertion?
base of styloid process of radius
67
Brachioradialis innervation?
Radial N C6/7
68
Brachioradialis action?
Flex forearm
69
Pronator Teres origin?
Medial epicondyle of humerus and medial border of coronoid procss of ulna
70
Pronator Teres insertion?
upper part of radius
71
Pronator Teres innervation?
Median N C6/7
72
Pronator Teres action?
Ponate forearm | Flex elbow
73
Psoas Major origin?
bodies, IVD, TVP L1-5
74
Psoas Major insertion?
Lesser trochanter of femur
75
Psoas Major innervation?
L2-4
76
Psoas Major action?
Flex thigh and trunk
77
Gluteus Maximus origin?
Ilium, sacrum, coccyx, sacrotuberous ligament
78
Gluteus Maximus insertion?
Gluteal tuberosity of the femur and ITB
79
Gluteus Maximus innervation?
Inferior Gluteal N (L5-S2)
80
Gluteus Maximus action?
Ext, ext rtn of thigh
81
Piriformis origin?
Pelvic (ant) surface of sacrum
82
Piriformis insertion?
Medial aspect of superior border of greater trochanter of femur
83
Piriformis innervation
S1/2 from lumbosacral plexus
84
Piriformis action?
Ext rtn of thigh
85
Tensor Fasciae Latae origin?
Outer aspect of iliac crest btw iliac tubercle and ASIS
86
Tensor Fasciae Latae insertion?
Iliotibial tract
87
Tensor Fasciae Latae innervation?
Superior gluteal N (L4-S1)
88
Tensor Fasciae Latae action?
Maintain knee ext | Abduct thigh
89
Quadriceps Femoris origin?
AIIS (rec fem straight head) Sup rim of acetabulum (reflected head rec fem) Femur (Vastus med/intermed/lateralis)
90
Quadriceps Femoris insertion?
Tibial tuberosity via patellar tendon
91
Quadriceps Femoris innervation?
Femoral N (Post div L2-4)
92
Quadriceps Femoris action?
Ext knee Flex thigh Stabilize patella
93
Tibialis Anterior origin?
upper 1/2 of lat aspect of tibial shaft and interosseous membrane
94
Tibialis Anterior insertion?
inferomedial aspect of medial cuneiform and base of 1st metatarsal
95
Tibialis Anterior innervation?
Deep peroneal N (L4/5)
96
Tibialis Anterior Action?
Dorsiflex and invert food
97
Extensor Hallucis Longus origin?
middle 1/2 of ant aspect of fibula, interosseous membrane
98
Extensor Hallucis Longus insertion?
Base of dorsal aspect of distal phalanx of 1st toe
99
Extensor Hallucis Longus innervation?
Deep peroneal N (L5/S1)
100
Extensor Hallucis Longus action?
Ext big toe and dorsiflex ankle
101
Peroneus/Fibularis Longus origin?
Lateral tibial condyle, head and upper lateral aspect of fibula
102
Peroneus/Fibularis Longus insertion?
Inferolateral medial cuneiform and base of 1st metatarsal
103
Peroneus/Fibularis Longus innervation?
Superficial peroneal N (L5/S1)
104
Peroneus/Fibularis Longus action?
Plantarflex and evert foot
105
Gastrocnemius origin?
post medial and lateral femoral condyles
106
Gastrocnemius insertion?
posterior aspect calcaneus via calcaneal tendon
107
Gastrocnemius innervation?
Tibial N (S1/2)
108
Gastrocnemius action?
plantarflex ankle
109
Soleus origin?
Soleal line, mid 1/3 of tibia, upper 1/3 of fibula
110
Soleus insertion?
Calcaneal tendon to posterior surface of calcaneus
111
Soleus innervation?
Tibial N (S1/2)
112
Soleus action?
Plantar flex ankle and aid in venous return from leg
113
Tibialis Posterior origin?
Interosseous membrane, upper tibia and fibula
114
Tibialis Posterior insertion?
Navicular, 3 cuneiform bones, base 2-4th metatarsal bones
115
Tibialis Posterior action?
Plantar flex and invert foot, support med long arch

Chiro Essentials Anatomy (6 decks)

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