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Muscles Flashcards

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1
Q

Psoas Major: origin

A

TP’s vertebral bodies and adjoining disc of T12-L5

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2
Q

Psoas Major: insertion

A

lesser trachanter

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3
Q

Psoas major: innervation

A

ventral rami of L1-L3

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4
Q

psoas major: actions

A

flexes hip, externally rotates hip, ipsilateral SB, spine flexion and stabilization

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5
Q

iliacus: origin

A

superior 2/3 iliac crest and anterior SI ligament

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6
Q

iliacus: insertion

A

lesser trochanter

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7
Q

iliacus: innervation

A

femoral nerve L2-3

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8
Q

iliacus: actions

A

flexes hip, externally rotates hip

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9
Q

rectus femoris: origin

A

straight head- AIIS

reflected head- groove on ilium superior to acetabulum, fibrous capsule

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10
Q

rectus femoris: insertion

A

patella by quadriceps tendon, tibial tuberocity by patellar tendon

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11
Q

rectus femoris: innervation

A

femoral nerve L2,3,4

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12
Q

rectus femoris: actions

A

flexes hip and extends knee

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13
Q

sartorius: origin

A

ASIS

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14
Q

sartorius: insertion

A

proximal medial surface of tibia at pes anserine

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15
Q

sartorius: innervation

A

femoral nerve L2-3

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16
Q

sartorius: actions

A

flexes hip, externally rotates hip, abduct the hip, internally rotates and flexes the knee

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17
Q

Tensor Fascia Latae: origin

A

anterior iliac crest, lateral surface of ASIS, portion of border of notch below

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18
Q

Tensor Fascia Latae: insertion

A

ITB (iliotibial), lateral tibial condyle at gerdys tubercle

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19
Q

Tensor Fascia Latae: innervation

A

superior gluteal nerve L4,5, S1

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20
Q

Tensor Fascia Latae: actions

A

extends and externally rotates the knee, flexes, abducts, internally rotates the hip, stabilizer of the knee

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21
Q

Gluteus Maximus: origin

A

posterior gluteal line of ilium, posterior sacrum, sacrotuberous ligament

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22
Q

Gluteus Maximus: insertion

A

gluteal tuberosity of femur and ITB

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23
Q

Gluteus Maximus: innervation

A

inferior gluteal nerve L5, S1-2

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24
Q

Gluteus Maximus: actions

A

extends, abducts, and externally rotates hip. stabilizes knee through ITB

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25
Biceps Femoris: origin
long head- upper ischial tuberosity short head- lateral lip of linea aspera inferior to gluteus maximus attachment, proximal 1/2 of lateral supracondylar line
26
Biceps Femoris: insertion
fibular head, LCL, lateral tibial condyle
27
Biceps Femoris: innervation
long head- tibial division of sciatic L5, S1-2 | short head- common perineal division of sciatic L5, S1-2
28
Biceps Femoris: actions
extends hip, flexes knee, laterally rotates hip and knee
29
Semitendinosus: origin
inferomedial aspect of ischial tuberosity
30
Semiteninosus: insertion
medial aspect of proximal tibia at pes anserine
31
Semiteninosus: innervation
tibial division of sciatic nerve L5, S1-2
32
Semiteninosus: actions
extends hip, flexes knee, medially rotates hip and knee
33
Semimembranosus: origin
superolateral aspect of ischial tuberosity
34
Semimembranosus: insertion
posterior aspect of medial tibial condyle
35
Semimembranosus: innervation
tibial division of sciatic nerve L5, S1-2
36
Semimembranosus: actions
extends hip, flexes knee, medially rotates hip and knee
37
Adductor Magnus: origin
inferior ramis of pubis, inferior rams of ischium, and ischial tuberosity
38
Adductor Magnus: insertion
linea aspera, medial supracondylar line and adductor tubercle
39
Adductor Magnus: innervation
obturator and tibial division of sciatic nerve L2-4
40
Adductor Magnus: actions
adduction of hip and extension
41
Adductor Brevis: origin
inferior rams of pubis
42
Aductor Brevis: insertion
pectineal line and proximal 1/2 of medial lip of line aspera
43
Adductor Brevis: innervation
obturator nerve L2-3
44
Adductor Brevis: actions
adducts hip
45
Adductor Longus: origin
anterior pubic body
46
Adductor Longus: insertion
middle 1/3 of medial lip of line aspera
47
Adductor Longus: innervation
obturator nerve L2-4
48
Adductor Longus: actions
adducts hip and flexion of hip
49
Pectineus: origin
pectineal line on superior rams of pubis
50
Pectineus: insertion
pectineal line between the lesser and grater trochanter and the line aspera
51
Pectineus: innervation
femoral nerve L2-3
52
Pectineus: actions
adducts hip, flexes hip
53
Gracilis: origin
lower 1/2 of pubic body, lower aspect of inferior pubis rams and adjoining ischial ramus
54
Gracilis: insertion
proximal medial surface of tibia at pes anserine
55
Gracilis: innervation
obturator nerve L2-3
56
Gracilis: actions
adducts hip, flexes and medial rotates knee
57
Gluteus Medius: origin
lateral ilium between posterior and anterior gluteal lines
58
Gluteus Medius: insertion
lateral aspect of greater trochanter
59
Gluteus Medius: innervation
superior gluteal nerve L4-S1
60
Gluteus Medius: actions
all- abducts hip posterior- external rotation anterior- internal rotation keeps pelvis level
61
Gluteus Minimus: origin
lateral ilium deep to gluteus medius between anterior and inferior gluteal lines
62
Gluteus Minimus: insertion
anterolateral aspect of greater trochanter
63
Gluteus Minimus: innervation
superior gluteal nerve L4-S1
64
Gluteus Minimus: actions
hip abduction, internal rotation
65
Piriformis: origin
anterior surface of sacrum at level of S2-S4
66
Piriformis: insertion
superior and medial aspect of greater trochanter
67
Piriformis: innervation
ventral rami L5, S1-2
68
Piriformis: actions
externally rotates hip, and abducts hip
69
Quadratus Femoris: origin
lateral border of ischial tuberosity
70
Quadratus Femoris: insertion
intertrochanteric crest and quadrate tubercle of femur
71
Quadratus Femoris: innervation
nerve to quadratus muscle L4-S1
72
Quadratus Femoris: actions
external rotation

Anatomy (4 decks)

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