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MSK Exam 2 > LE Myology Part 2 > Flashcards

LE Myology Part 2 Flashcards

(49 cards)

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1
Q

Gluteus Maximus
O:
I:
A:

A

O: Ilium, Dorsal sacrum and coccyx, Sacrotuberous L
I: Gluteal tuberosity and lateral tibial condyle via the IT
A: Extend Thigh, ASSIST lateral rotation

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2
Q

Gluteus Medius & Minimus
O:
I:
A:

A

O: Ilium
I: Greater trochanter
A: Abduct thigh, medially rotate thigh

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3
Q

Tensor Fascia Lata
O:
I:
A:

A

O: Anterior Superior Iliac Spine (ASIS), anterior aspect iliac crest
I: IT and Tibial Condyle via the IT
A: Abduct thigh, medially rotate thigh, flex thigh, maintain extended leg

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4
Q

Piriformis
O:
I:
A:

A

O: Anterior sacrum, Sacrotuberous L
I: Greater trochanter
A: Laterally rotate thigh when extended, abduct thigh when flexed, stabilize femoral head in acetabulum

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5
Q

Superior Gemellus
O:
I:
A:

A

O: Ischial Spine
I: Greater trochanter
A: Laterally rotate thigh when extended, medially rotate thigh when flexed, stabilize femoral head in acetabulum

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6
Q

Inferior Gemellus
O:
I:
A:

A

O: Ischial tuberosity
I: Greater trochanter
A: Laterally rotate thigh when extended, medially rotate thigh when flexed, stabilize femoral head in acetabulum

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7
Q

Quadratus Femoris
O:
I:
A:

A

O: Ischial tuberosity
I: Quadrate tubercle on intertrochanteric crest
A: Laterally rotate thigh, stabilize femoral head in acetabulum

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8
Q

Obturator Externus
O:
I:
A:

A

O: Obturator membrane, margin of obturator foramen (both on anterior side)
I: Trochanteric fossa (anterior side, near greater troch)
A: Laterally rotate thigh, stabilize femoral head in acetabulum

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9
Q

Obturator Internus
O:
I:
A:

A

O: Pelvic surfaces of Ilium and Ischium, Obturator membrane
I: Greater trochanter
A: Laterally rotate thigh when extended, abduct thigh when flexed, stabilize femoral head in acetabulum

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10
Q

Psoas Major
O:
I:
A:

A

O: Transverse processes of L1-5, vertebral bodies of T12-L5
I: Lesser trochhanter
A: Laterally flex vertebral columnm, balance trunk, flex the trunk, flex the thigh when acting with Iliacus

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11
Q

Iliacus
O:
I:
A:

A

O: Superior Iliac Fossa, ala of sarcrum, anterior sacroiliac ligament
I: Lesser trochanter, femoral shaft, psoas major tendon
A: Flex the thigh, stabilize hip joint

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12
Q

Sartorius
O:
I:
A:

A

O: Anterior superior iliac spine (ASIS)
I: Pes anserine (medial proximal tibia)
A: Flex thigh, abduct thigh, laterally rotate thigh, flex leg at the knee

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13
Q

Rectus Femoris
O:
I:
A:

A

O: Anterior inferior iliac spine (AIIS)
I: Base of patella, tibial tuberosity via patellar ligament
A: Extend leg at knee, assists Iliopsoas in thigh flexion

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14
Q

Vastus Lateralis
O:
I:
A:

A

O: Greater trochanter, lateral lip of linea aspera
I: Base of patella, tibial tuberosity via patellar ligament
A: Extend leg at the knee

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15
Q

Vastus Intermedius
O:
I:
A:

A

O: Anterior and lateral surface of femoral body
I: Base of patella, tibial tuberosity via patellar ligament
A: Extend leg at the knee

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16
Q

Vastus Medialis
O:
I:
A:

A

O: Intertrochanteric line, medial lip of linea aspera
I: Base of patella, tibial tuberosity via patellar ligament
A: Extend leg at knee

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17
Q

Articularis Genu
O:
I:
A:

A

O: Anterior distal femur
I: Articular capsule of knee
A: Tightens capsule of knee during leg extension

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18
Q

Pectineus
O:
I:
A:

A

O: Superior pubic ramus
I: Pectineal line of femur
A: Adduct thigh, flex thigh

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19
Q

Adductor Longus
O:
I:
A:

A

O: Body of pubis
I: Middle linea aspera
A: Adduct thigh

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20
Q

Adductor Brevis
O:
I:
A:

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A

O: Inferior pubic ramus
I: Pectineal line, proximal linea aspera
A: Adduct thigh, assist in thigh flexion

21
Q

Adductor Magnus
O:
I:
A:

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A

O: Ischiopubic ramus, ischial tuberosity
I: Gluteal tuberosity, linea aspera, medial supracondylar line, adductor tubercle
A: Adduct thigh, upper fibers flex the thigh, lower fibers extend the thigh

22
Q

Gracilis
O:
I:
A:

Study These Flashcards
A

O: Inferior pubic ramus, body of pubis
I: Pes anserine (medial proximal tibia)
A: Adduct thigh, flex the leg, assist in medial thigh rotation

23
Q

Biceps Femoris
O:
I:
A:

Study These Flashcards
A

O: Long head- ischial tuberosity, short head- linea aspera and lateral supracondylar line
I: Lateral aspect fibular head
A: Flex leg, laterally rotates flexed leg, long head- extends thigh

24
Q

Semitendinosus
O:
I:
A:

Study These Flashcards
A

O: Ischial tuberosity
I: Pes anserine (medial proximal tibia)
A: Extend thigh, flex leg, medially rotate flexed leg

25
Semimembranosus O: I: A:
O: Ischial tuberosity I: Posterior medial tibial condyle A: Extend thigh, flex leg, medially rotate flexed leg
26
Tibialis Anterior O: I: A:
O: Lateral tibial condyle, lateral proximal tibia, interosseous membrane I: Inferomedial aspect medial cuneiform, base of 1st metatarsal A: Dorsiflex the foot at the ankle, invert foot
27
Extensor Hallucis Longus O: I: A:
O: Anterior fibula, interosseous membrane I: Dorsum of base of 1st distal phalanx A: Extend hallux, dorsiflex the foot at the ankle
28
Extensor Digitorum Longus O: I: A:
O: Lateral tibial condyle, medial fibula, interosseous membrane I: 2nd-5th middle and distal phalanges A: Extend digits 2-5, dorsiflex foot
29
Fibularis Tertius O: I: A:
O: Anteroinferior aspect of fibula, interosseous membrane I: Dorsal aspect base of 5th metatarsal A: Dorsiflex foot, assist in eversion of foot
30
Fibularis Longus O: I: A:
O: Head and superior fibula I: Base of 1st metatarsal, medial cuneiform A: Evert foot, assist in plantarflexion
31
Fibularis Brevis O: I: A:
O: Inferolateral fibula I: Tuberosity of base of 5th metatarsal A: Evert foot, assist in plantarflexion
32
Gastrocnemius O: I: A:
O: Lateral head- lateral femoral condyle, medial head- popliteal surface above medial femoral condyle I: Posterior calcaneus via calcaneal tendon A: Plantarflexion with extended knee, elevates heel, flexes leg
33
Soleus O: I: A:
O: Posterior head and body of fibula, soleal line (posterior tibia) I: Posterior calcaneus via calcaneal tendon A: Plantarflexion of the foot at the ankle
34
Plantaris (vestigial muscle, frequently absent, referred to as "freshman's nerve") O: I: A:
O: Lateral supracondylar line, oblique popliteal ligament I: Posterior calcaneus via calcaneal tendon A: Weakly assists in plantarflexion and flexing the knee
35
Popliteus O: I: A:
O: Lateral femoral condyle, lateral meniscus I: Posterior tibia via superomedial to soleal line A: Weakly flexes the knee
36
Flexor Hallucis Longus O: I: A:
O: Posteroinferior fibula, interosseous membrane I: Base of 1st distal phalanx A: Flex the hallux, weakly plantarflexes the foot at the ankle
37
Tibialis Posterior O: I: A:
O: Posterior fibula, posterior tibia inferior to soleal line, interosseous membrane I: Tuberosity of navicular, medial and intermediate cuneiform, base of 3rd-5th metatarsals A: Plantarflexion, eversion
38
Extensor Digitorum Brevis O: I: A:
O: Superolateral aspect of calcaneus, interosseous talocalcaneal ligament I: Extensor digitorum longus tendon A: Extends digits 2-5
39
Extensor Hallucis Brevis O: I: A:
O: Superolateral aspect of calcaneus, interosseous talocalcaneal ligament I: Dorsal aspect of base of 1st proximal phalanx A: Extends hallux at the metatarsophalangeal joint
40
Adductor Hallucis O: I: A:
O: Medial tubercle calcaneal tuberosity I: Medial aspect base of 1st proximal phalanx A: Abduct hallux, flex the hallux
41
Flexor Digitorum Brevis O: I: A:
O: Medial tubercle calcaneal tuberosity I: Intermediate phalanges 2nd-5th digits A: Flex digits 2-5
42
Abductor Digiti Minimi O: I: A:
O: Calcaneal Tuberosity I: Lateral aspect of base of 5th proximal phalanx A: Abducts and flexes 5th digit
43
Quadratus Plantae O: I: A:
O: Plantar surface of calcaneus I: Flexor digitorum longus tendon A: Assist in flexing digits 2-5
44
Lumbricals (4 in total) O: I: A:
O: Flexor digitorum longus tendon I: Medial proximal phalanx of digits 2-5, medial aspect of digital expansion on digits 2-5 A: Flex metatarsophalangeal joint, extend proximal and distal IP joints
45
Flexor Hallucis Brevis O: I: A:
O: Plantar surface cuboid bone, lateral cuneiform bone I: Base 1st proximal phalanx A: Flexes 1st proximal phalanx
46
Flexor Digiti Minimi Brevis O: I: A:
O: Base 5th metatarsal bone I: Base 5th proximal phalanx A: Flex proximal phalanx of 5th digit
47
Adductor Hallucis O: I: A:
O: Oblique head- bases of 2nd-4th metatarsals, transverse head- plantar metatarsophalangeal ligament I: Base of 1st proximal phalanx A: Adduct hallux
48
Dorsal Interossei (DABs, 4 in total) O: I: A:
O: Adjacent edges and bases of 1-5 metatarsal bones I: 1st- medial aspect 2nd proximal phalanx, 2nd-4th- lateral aspect bases of 2-4th proximal phalanges A: Abducts digits 2-4, flexes metatarsophalangeal joint
49
Plantar Interossei (PADs, 3 in total) O: I: A:
O: Medail aspects and bases of 3rd-5th metatarsal bones I: Medial aspect bases of 3rd, 4th and 5th proximal phalanges A: Adduct digits 3-5, flex metatarsophalangeal joint

MSK Exam 2 (14 decks)

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