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Muscle Cards > Trunk, Hip, and Thigh > Flashcards

Trunk, Hip, and Thigh Flashcards

1
Q

Pect Major

A

O: clavicle and sternum
I: intertubercular groove
N: lateral and medial pectoral N (C5-T1)
A: adduct and IR; draws scapula anterior and inferior

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2
Q

Pect Minor

A

O: ribs 3-5
I: coracoid process
N: medial pectoral (C8-T1)
A: draws scapula inferiorly and superiorly against thoracic wall

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3
Q

Subclavius

A

O: 1st rib
I: clavicle
N: subclavius N
A: depresses clavicle

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4
Q

External Intercostal

A

O: inferior border of ribs
I: superior border of ribs below
N: intercostal nerve
A: elevates ribs - (fibers run medial and inferior)

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5
Q

Internal Intercostal

A

O: inferior border of ribs
I: superior border of ribs below
N: intercostal nerve
A: depress ribs during expiration - fibers run lateral and inferior)

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6
Q

Rectus Abdominis

A

O: pubic symphysis
I: xiphoid process, 5-7 costal cartilages
N: thoraco-abdominal nerves (T7-12)
A: trunk flexion, pelvic tilt, visceral compression during respiration

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7
Q

External Oblique

A

O: 5-12 ribs
I: pubic tubercle, iliac crest
N: thoraco-abdominal nerves T7-12
A: support abdominal viscera; with the help of the contralateral internal oblique, flexion and rotation of trunk

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8
Q

Internal Oblique

A

O: thoracolumbar fascia, iliac crest
I: 10-12 ribs
N: thoraco-abdominal nerves T7-12 and L1
A: support abdominal viscera; flex and rotate trunk

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9
Q

Transverse Abdominis

A

O: 7-12 costal cartilages, thoracolumbar fascia, iliac crest
I: linea alba with internal oblique; pubic crest
N: thoraco-abdominal nerves T7-12 and L1
A: support abdominal viscera

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10
Q

Gluteus Maximus

A

O: sacrum/coccyx, thoracolumbar fascia
I: fibers into iliotibial tract that attaches to lateral condyle of tibia tuberosity; gluteal tuberosity
N: inferior gluteal nerve (L5-S2)
A: extends thigh, ER, abduction; raises trunk from flexed position

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11
Q

Gluteus Medius

A

O: surface of ilium
I: superior, lateral surface of greater trochanter
N: superior gluteal nerve (L4-S1)
A: abductor of thigh, IR thigh

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12
Q

Gluteus Minimus

A

O: surface of ilium
I: anterior, lateral surface of the greater trochanter
N: superior gluteal nerve (L4-S1)
A: abduction, IR, and steadies pelvis

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13
Q

Piriformis

A

O: internal surface of sacrum (S2-4)
I: superior surface of greater trochanter
N: nerve to piriformis (S1-S2)
A: ER of thigh, abduction of flexed thigh

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14
Q

Superior Gemellus

A

O: ischial spine
I: medial surface of greater trochanter
N: N to obturator internus (L4-S1)
A: ER when thigh extended; abducts flexed thigh

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15
Q

Inferior Gemellus

A

O: ischial tuberosity
I: medial surface of greater trochanter
N: N to quadratus femoris (L4-S1)
A: ER, abducts flexed thigh

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16
Q

Obturator Internus

A

O: obturator membrane
I: medial surface of greater trochanter
N: N to obturator internus (L4-S1)
A: ER, abducts flexed thigh

17
Q

Quadratus Femoris

A

O: ischial tuberosity
I: intertrochanteric crest (posterior femur)
N: N to quadratus femoris (L4-S1)
A: ER

18
Q

Obturator Externus

A

O: obturator foramen/ membrane
I: trochanteric fossa of femur
N: obturator nerve (L2-4)
A: ER thigh

19
Q

Semitendinosus

A

O: ischial tuberosity
I: medial surface of tibia
N: tibial division (L4-S3)
A: flexes knee, IR of flexed leg, extends thigh; pulls trunk upright against gravity

20
Q

Semimembranosus

A

O: ischial tuberosity
I: medial condyle of tibia
N: tibial division (L4-S3)
A: flexes knee, IR of flexed leg, extends thigh; pulls trunk upright against gravity

21
Q

Biceps Femoris

A

O: ischial tuberosity and linea aspera/supracondylar line
I: lateral side of head of fibula
N: long (tibial division); short (common fibular - L4-S2)
A: flexes knee, ER of flexed leg, extends thigh; pulls trunk upright against gravity

22
Q

Tensor Fascia Lata

A

O: ASIS, iliac crest, fascia lata
I: lateral condyle of tibia
N: superior gluteal nerve (L4-S1)
A: abducts, IR, flexes thigh, keeps knee extended

23
Q

Rectus Femoris

A

O: AIIS / groove anterior to acetabulum
I: tibial tuberosity
N: femoral nerve (L2-4)
A: extends knee, flexes hip

24
Q

Vastus Medialis

A

O: intertrochanteric line
I: tibial tuberosity
N: femoral nerve (L2-4)
A: extends knee

25
Q

Vastus Lateralis

A

O: greater trochanter
I: tibial tuberosity
N: femoral nerve (L2-4)
A: extends knee

26
Q

Vastus Intermedius

A

O: anterior surface of femur
I: tibial tuberosity
N: femoral nerve (L2-4)
A: extends knee

27
Q

Sartorius

A

O: ASIS
I: medial surfac eof tibia
N: femoral nerve (L2-4)
A: flexes, abducts, and ER thigh; flexes knee

28
Q

Pectineus

A

O: pectineal line of pubis
I: pectineal line of femur
N: femoral nerve (L2-4)
A: adducts and flexes thigh

29
Q

Adductor Longus

A

O: body of pubis; inferior to pubic crest
I: linea aspera of femur
N: obturator nerve (L2-4)
A: adducts thigh

30
Q

Adductor Brevis

A

O: inferior ramus of pubis
I: proximal part of linea aspera of femur
N: obturator nerve (L2-4)
A: adducts thigh/ flexes thigh

31
Q

Adductor Magnus

A

O: ramus of pubis/ischium, ischial tuberosity
I: gluteal tuberosity, linea aspera on femur; supracondylar line and adductor tubercle of femur (hamstring division)
N: adductor - obturator; hamstring - tibial division (L4-S3)
A: adducts thigh

32
Q

Gracilis

A

O: body and inferior ramus of pubis
I: medial surface of tibia - pes anserinus
N: obturator nerve (L2-4)
A: adducts thigh, flexes leg, IR when knee if flexed

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