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Anatomy II > 1/19 Muscles > Flashcards

1/19 Muscles Flashcards

(120 cards)

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1
Q

External Oblique origin

A

External surfaces of 5th-12th ribs

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2
Q

External Oblique insertion

A

Linea Alba, pubic tubercle and anterior half of iliac crest

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3
Q

External Oblique innervation

A

Thoraco-abdominal and subcostal nerves (anteiror rami of T7-T12 Spinal Nerves)

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4
Q

External Oblique action

A

Compress and support abdominal viscera, flex and rotate trunk

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5
Q

Internal Oblique origin

A

Thoracolumbar fascia, anterior two third of illiac crest, and connective tissue deep to linguinal ligamen

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6
Q

Internal Oblique insertion

A

internal borders off 10th-12th ribs, linea alba, and pubis via conjoint tendon

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7
Q

Internal Oblique innervation

A

Thoraco-abdominal nerves (anteiror rami of T7-T11 Spinal Nerves) subcostal and first lumbar nerve

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8
Q

Internal Oblique action

A

Compress and support abdominal viscera, flex and rotate trunk

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9
Q

Transveres Abdomninus origin

A

internal surfaces of 7th-12th costal cartilages, thoracolumbar fascia, iliac crest, and connective tissue deep to linguinal ligament

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10
Q

Transveres Abdomninus insertion

A

Linea alba with aporneurosis of internal oblique, pubic crest, and pubis via conjoint tendon

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11
Q

Transveres Abdomninus innervation

A

Thoraco-abdominal nerves (anteiror rami of T7-T11 Spinal Nerves) subcostal and first lumbar nerve

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12
Q

Transveres Abdomninus action

A

compressess and supports abdominal viscera

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13
Q

Rectus Abdominus origin

A

pubic symphasis and pubic crest

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14
Q

Rectus Abdominus insertion

A

xiphiod process and 5th-7th costal cartilages

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15
Q

Rectus Abdominus innervation

A

Thoraco-abdominal and subcostal nerves (anteiror rami of T7-T12 Spinal Nerves)

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16
Q

Rectus Abdominus action

A

flexes trunk (lumbar vertebrae) and compressess abdominal viscera; stabalizes and controls tilt of pelvis (antilordosis)

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17
Q

Iliacus origin

A

supeiror 2/3 of iliac fossa, ala of sacrum, and anteior sacroiliac ligaments

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18
Q

Iliacus insertion

A

tendon of psoas major, lesser trochanter of femur, and shaft of femur distal (inferior) to it

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19
Q

Iliacus innervation

A

femoral nerve (L2-L4)

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20
Q

Iliacus action

A

femoral nerve (L2-L4)

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21
Q

Psoas Major origin

A

sides of T12-S1 vertebrae and intervening IV discs between them; transverse processes of all lumbar vertebrae

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22
Q

Psoas Major insertion

A

by strong tendon to lesser trochanter of femur

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23
Q

Psoas Major innervation

A

lumbar plexus vis anterior branches of nerves (L2-L4)

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24
Q

Psoas Major action

A

acting inferiorly with iliacus, flexes thigh; acting superiorly, flexes vertebral column laterally to balance the trunk; when sitting, acts inferiorly with iliacus to flex trunk

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25
Quadratus Lumborum origin
medial half of inferior border of 12th rib and tips of lumbar transverse processes
26
Quadratus Lumborum insertion
iliolumbar ligament and internal lip of iliac crest
27
Quadratus Lumborum innervation
anterior branches of T12 and L1-L4 nerves
28
Quadratus Lumborum action
extends and laterally flexes verteral column; fixes 12th rib during inspiration
29
Rectus Femoris origin
anterior inferior iliac spine and ilium superior to acetabulum
30
Rectus Femoris insertion
Via common tendinous (quadriceps tendon) and independent attachemtns to base of patella; indirectly via patellar ligament to tibial tuberosity
31
Rectus Femoris action
extend knee joint; stabalizes (helps fix in position) hip joint and helps iliopsoas flex hip joint
32
Rectus Femoris innervation
femoral nerve (L2,L3, L4)
33
Vastus Lateralis Origin
greater trochanter and lateral lip of linea aspera
34
Vastus Lateralis Insertion
Via common tendinous (quadriceps tendon) and independent attachemtns to base of patella; indirectly via patellar ligament to tibial tuberosity; tibia and patella via
35
Vastus Lateralis Innervation
femoral nerve (L2,L3, L4)
36
Vastus Lateralis Action
extend knee joint
37
Vastus Medialis Origin
intertrochanteric line and medial lip of linea aspera
38
Vastus Medialis Insertion
Via common tendinous (quadriceps tendon) and independent attachemtns to base of patella; indirectly via patellar ligament to tibial tuberosity; tibia and patella via aponeuroses (medial patellar retinacula)
39
Vastus Medialis Innervation
femoral nerve (L2,L3, L4)
40
Vastus Medialis Action
extend knee joint
41
Vastus Intermedius Origin
anterior and lateral surfaces of shaft of femur
42
Vastus Intermedius Insertion
Via common tendinous (quadriceps tendon) and independent attachemtns to base of patella; indirectly via patellar ligament to tibial tuberosity
43
Vastus Intermedius Innervation
femoral nerve (L2,L3, L4)
44
Vastus Intermedius Action
extend knee joint
45
Obturator Externus Origin
margins of obturator foramen and obturator membrane
46
Obturator Externus Insertion
trochanteric fossa of femur
47
Obturator Externus Innervation
obturator nerve (L3,L4)
48
Obturator Externus Action
laterally rotates hip joint; pulls head of femur into acetabelum holding pelvis steady
49
Gracilis Origin
body and inferior ramus of pubis
50
Gracilis Insertion
superior part of medial surface of tibia
51
Gracilis Innervation
obturator nerve (L2,L3)
52
Gracilis Action
aDDucts hip joint, flexes knee joint and helps rotate it medially
53
Adductor Longus Origin
body of pubis inferior to pubic crest
54
Adductor Longus Insertion
middle third of linea aspera of femur
55
Adductor Longus Innervation
obturator nerve (L2, L3, L4)
56
Adductor Longus Action
aDDucts hip joint
57
Adductor Brevis Origin
body and inferior ramus of pubis
58
Adductor Brevis Insertion
pectineal line and proximal part of linea aspera of femur
59
Adductor Brevis Innervation
obturator nerve (L2, L3, L4)
60
Adductor Brevis Action
aDDUcts hip joint and to some extent flexes it
61
Adductuor Magnus Origin
adductor part: inferior ramus of pubis, ramus of ischium Hamstring part: ischial tuberosity
62
Adductuor Magnus Insertion
adductor part: gluteal tuberosity, linea aspera, medial supracondylar line Hamstring part: adductor tubercle of femur
63
Adductuor Magnus Innervation
adductor part: obturator nerve (L2, L3, L4) Hamstring part: tibial part of sciatic nerve (L4)
64
Adductuor Magnus Action
both parts aDDucts hip joint; adductor part also flexes hip joint; hamstring part extends hip joint
65
Pectinius Origin
superior ramus of pubis
66
Pectinius Insertion
pectineal line of femur, just inferior to lesser trochanter
67
Pectinius Innervation
femoral nerve (L2,L3); may also receive branch from obturator nerve
68
Pectinius Action
aDDucts and flexes hip joint; assists with medial rotiation of hip joint (internal rotation)
69
Sartorius Origin
anterior superior iliac spine and superior part of notch inferior to it
70
Sartorius Insertion
superior part of medial surface of tibia
71
Sartorius Innervation
femoral nerve (L2,L3)
72
Sartorius Action
flexes and aBducts and laterally rotates hip joint (external rotation); flexes knee joint
73
Tensor Fascia Latae Origin
Anterior superior iliac spine; anterior part of iliac crest
74
Tensor Fascia Latae Insertion
iliotibial tract, which attaches to lateral condyle of tibia (Gerdy tubercle)
75
Tensor Fascia Latae Innervation
Superior Gluteal nerve (L4, L5, S1)
76
Tensor Fascia Latae Action
flexes hip joint; acts with gluteus maximus to stablize the extended knee joint
77
Gluteus Maximus Origin
ilium posterior to posteriot gluteal line; posterior surface of sacrum and coccyx, and sacrotuberous ligament
78
Gluteus Maximus Insertion
most fibers end in iliotibial tract, which inserts into lateral condyle of tibia; some fibers insert on gluteal tuberosity of femur
79
Gluteus Maximus Innervation
inferior gluteal nerve (L5, S1, S2)
80
Gluteus Maximus Action
extends hip joint between flexed and standing positions and assists in its lateral rotation; steadies thigh and assists in rising from sitting position
81
Gluteus Medius Origin
external surface of ilium between anterior and posterior gluteal lines
82
Gluteus Medius Insertion
lateral surfaces of greater trochanter of femur
83
Gluteus Medius Innervation
Superior Gluteal nerve (L4, L5, S1)
84
Gluteus Medius Action
aBduct and anterior portions medially rotatet hip jointt; keep pelvis level when opposite limb is elevated
85
Gluteus Minimus Origin
external surface of ilium between anterior and inferior gluteal lines
86
Gluteus Minimus Insertion
anterior surface of greater trochanter of femur
87
Gluteus Minimus Innervation
Superior Gluteal nerve (L4, L5, S1)
88
Gluteus Minimus Action
aBduct and anterior portions medially rotatet hip jointt; keep pelvis level when opposite limb is elevated
89
Piriformis Origin
anterior surface of 2nd-4th sacral segments; superiormargin of greater sciatic notch and sacrotuberous ligament
90
Piriformis Insertion
superior border of greater trochanter of femur
91
Piriformis Innervation
branches of anterior rami of S1, S2
92
Piriformis Action
laterally rotate extended hip joint; aBduct flexed hip joint; steady femoral head in acettabulum (stablizes hip joint)
93
Obturator Internus Origin
pelvic surface of ilium and ischium; obturator membrane
94
Obturator Internus Insertion
medial surface of greater trochanter (trochanteric fossa) of femur)
95
Obturator Internus Innervation
nerve to obturator internus (L5, S1)
96
Obturator Internus Action
laterally rotate extended hip joint; aBduct flexed hip joint; steady femoral head in acettabulum (stablizes hip joint)
97
Superior Gemellus Origin
ischial spine
98
Superior Gemellus Insertion
medial surface of greater trochanter (trochanteric fossa) of femur)
99
Superior Gemellus Innervation
nerve to obturator internus (L5, S1)
100
Superior Gemellus Action
laterally rotate extended hip joint; aBduct flexed hip joint; steady femoral head in acettabulum (stablizes hip joint)
101
Inferior Gemellus Origin
ischial tuberosity
102
Inferior Gemellus Insertion
medial surface of greater trochanter (trochanteric fossa) of femur)
103
Inferior Gemellus Innervation
nerve to quadratus femoris (L5, S1)
104
Inferior Gemellus Action
laterally rotate extended hip joint; aBduct flexed hip joint; steady femoral head in acettabulum (stablizes hip joint)
105
Quadratus femoris Origin
lateral border of ischial tuberosity
106
Quadratus femoris Insertion
Quadrate tubercle on intertrochanteric crest of femur and area inferior to it
107
Quadratus femoris Innervation
nerve to quadratus femoris (L5, S1)
108
Quadratus femoris Action
laterally rotates hip joint; also pulls femoral head into acetabulum to stabalize hip joint/ pelvis
109
Semimebraneous Origin
ischial tuberosity
110
Semimebraneous Insertion
posterior part of medial condyle of tibia; reflected attachment forms oblique popliteal ligament (to lateral femoral condyle)
111
Semimebraneous Innervation
Tibial division of sciatic nerve (L5, S1, S2)
112
Semimebraneous Action
extend hip joint; flex knee joint and rotate the leg medially when knee is flexed; when hip and knee are flexed, can extend trunk
113
Semitendinosis Origin
ischial tuberosity
114
Isemitendinosis nsertion
medial surface of superior part of tibia
115
Semitendinosis Innervation
Tibial division of sciatic nerve (L5, S1, S2)
116
Semitendinosis Action
extend hip joint; flex knee joint and rotate the leg medially when knee is flexed; when hip and knee are flexed, can extend trunk
117
Biceps Femoris Origin
long head: ischial tuberosity short head: linea aspera and lateral supracondylar line of femur
118
Biceps Femoris Insertion
lateral side of head of fibula; tendon is split at this site by fibular collateral ligament of knee
119
Biceps Femoris Innervation
long head: tibial division of sciatic nerve (L5, S1, S2); Short head: common fibular diviison of sciatic nerve (L5, S1, S2)
120
Biceps Femoris Action
flexes knee joint and rotates it laterally when knee is flexed; extends hip joint (for example: when starting to walk)

Anatomy II (2 decks)

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