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Human Anatomy > Pelvis, Perineum, LE, Foot Muscles > Flashcards

Pelvis, Perineum, LE, Foot Muscles Flashcards

(71 cards)

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1
Q

Quadratus Lumborum

A

O: Lumbar transv. processes

I: Iliac Crest

Innv: lumbar plexus (T-12-L4

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2
Q

Psoas Major

A

O: T12, L1-L5

I: Lesser trochanter of femur

Innv: Lumbar Plexus (L1, L2, L3)

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3
Q

Iliacus

A

O: Iliac Fossa and Crest

I: Lesser trochanter of femur

Innv: Femoral n.

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4
Q

Piriformis

A

O: Anterior sacrum, sacrotuberous ligament

I: Greater trochanter of femur

Innv: Nerve to piriformis (S1-S2)

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5
Q

Obturator Internus

A

O: Deep obturator membrane and bone

I: Greater trochanter of femur

Innv: Nerve to obturator internus

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6
Q

Obturator externus

A

O: External obturator membrane and bone

I: Greater trochanter of femur

Innv: obturator nerve

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7
Q

Superior gemellus

A

O: ischial spine

I: greater trochanter

Innv: nerve to obturator internus

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8
Q

inferior gemellus

A

O: ischial tuberosity

I: greater trochanter of femur

Innv: nerve to quadratus femoris

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9
Q

Quadratus femoris

A

O: ischial tuberosity

I: superior femur

Innv: nerve to quadratus femoris

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10
Q

Gluteus maximus

A

O: ilium, sacrum and coccyx, sacrotuberous ligament

I: ischiotibial tract, gluteal tuberosity

Innv: inferior gluteal nerve

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11
Q

Gluteus medius

A

O: external ilium

I: greater trochanter of femur

Innv: superior gluteal nerve

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12
Q

Gluteus minimus

A

O: external ilium

I: Greater trochanter of femur

Innv: superior gluteal nerve

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13
Q

Tensor fasciae latae

A

O: ASIS, iliac crest

I: IT tract to lateral condyle of tibia

Innv: superior gluteal nerve

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14
Q

Rectus femoris

A

O: AIIS

I: patella tibial tuberosity

Innv: Femoral n.

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15
Q

Vastus Lateralis

A

O: Greater trochanter of femur, lateral lip of linea aspera

I: patella, tibial tuberosity

Innv: Femoral n.

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16
Q

Vastus Medialis

A

O: intertrochanteric line, medial lip of linea aspera

I: patella, tibial tuberosity

Innv: Femoral n.

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17
Q

Vastus intermedius

A

O: femoral shaft

I: patella, tibial tuberosity

Innv: Femoral n.

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18
Q

Sartorius

A

O: ASIS

I: superior tibia

Innv: Femoral n.

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19
Q

Pectineus

A

O: superior pubic ramus

I: pectineal line of femur

Innv: femoral n.

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20
Q

Gracilis

A

O: pubis

I: tibia

Innv: obturator n.

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21
Q

adductor longus

A

O: pubis

I: middle 1/3 of linea aspera

Innv: obturator n.

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22
Q

adductor brevis

A

O: pubis

I: middle 1/3 of linea aspera

Innv: obturator n.

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23
Q

adductor magnus - adductor part

A

O: ischiopubic ramus

I: gluteal tuberosity and proximal linea aspera

Innv: obturator n.

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24
Q

adductor magnus - hamstring part

A

O: ischial tuberosity

I: adductor tubercle of femur

Innv: tibial division of sciatic n.

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25
semitendinosus
O: ischial tuberosity I: proximal tibia Innv: tibial division of sciatic n.
26
semimembranosus
O: ischial tuberosity I: posterior medial condyle of tibia Innv: tibial division of sciatic n.
27
biceps femoris long head
O: ischial tuberosity I: head of fibula Innv: tibial division of siatic n.
28
biceps femoris short head
O: linea aspera I: head of fibula Innv: common fibular division of sciatic n.
29
Gastrocnemius
O: lateral head - lateral femoral condyle, medial head - popliteal surface of femur I: calcaneal tuberosity Innv: tibial n.
30
Soleus
O: tibia, posterior fibular head I: calcaneal tuberosity Innv: tibial n.
31
plantaris
O: lateral supracondylar line of femur I: calcaneal tuberosity Innv: tibial n.
32
popliteus
O: lateral condyle of femur, lateral meniscus I: proximal tibia Innv: tibial n.
33
flexor digitorum longus
O: medial posterior tibia I: base of distal phalanges of lateral 4 digits Innv: tibial n.
34
flexor hallucis longus
O: posterior surface of fibula and IO membrane I: distal phalanx of hallux Innv: tibial n.
35
tibialis posterior
O: posterior surface of IO membrane, tibia and fibula I: navicular Innv: tibial n.
36
tibialis anterior
O: lateral condyle and lateral tibia, IO membrane I: medial cuneiform, base of 1st metatarsal Innv: deep fibular n.
37
extensor digitorum longus
O: proximal anterior fibula and IO membrane, lateral condyle of tibia I: middle and distal phalanges of digits 2-5 Innv: deep fibular n.
38
extensor digitorum brevis
O: dorsal calcaneus I: extensor expansions of digits 2-4 Innv: deep fibular n.
39
extensor hallucis longus
O: anterior fibula and IO membrane I: base of distal phalanx of hallux Innv: deep fibular n.
40
extensor hallucis brevis
O: dorsal surface of calcaneus I: base of proximal phalanx of hallux Innv: deep fibular n.
41
fibularis tertius
O: inferior 1/3 of anterior fibula and IO membrane I: base of 5th metatarsal Innv: deep fibular n.
42
fibularis longus
O: head and superior 2/3 of lateral fibula I: base of 1st meditarsal and medial cuneiform Innv: superficial fibular n.
43
fibularis brevis
O: inferior 2/3 of lateral fibula I: tuberosity at base of metatarsal 5 Innv: superficial fibular n.
44
abductor hallucis
1st layer O: calcaneal tuberosity I: base of proximal phalanx of hallus Innv: medial plantar n.
45
flexor digitorum brevis
1st layer O: calcaneal tuberosity I: middle phalanges of digits 2-5 Innv: medial plantar n.
46
Flexor hallucis brevis
3rd layer O: cuboid, lateral cuneiform I: sides of proximal phalanx of hallux Innv: medial plantar n.
47
aductor digiti minimi
1st layer O: calcaneal tuberosity I: proximal phalanx of 5th digit Innv: lateral plantar n.
48
quadratus plantae
2nd layer O: plantar surface of calcaneus I: lateral side of tendon of flexor digitorum longus Innv: lateral plantar n.
49
adductor hallucis
3rd layer O: transverse head - lateral 3 MTP joints, Oblique head - bases of metatarsals 2-4 I: base of proximal phalanx of hallux Innv: lateral plantar n.
50
flexor digiti minimi brevis
3rd layer O: base of 5th metatarsal I: proximal phalanx of digit 5 Innv: lateral plantar n.
51
3rd plantar interossei
4th layer O: medial sides of metatarsals 3-5 I: medial sides of bases of proximal phalanges of digits 3-5 Innv: lateral plantar n.
52
4th dorsal interossei
4th layer O: adjacent sides of metatarsals 1-5 I: 1st - medial side of proximal phalanx of digit 2, 2-4th - lateral sides of proximal phalanges of digits 2-4 Innv: lateral plantar n.
53
4 lumbricals
2nd layer O: tendons of flexor digitorum longus I: extensor expansions of digits 2-5 Innv: 1st - medial plantar n., 2nd-4th: lateral plantar n.
54
Posterior Compartment of Thigh Muscles, Origin Rules, Action rules, Innervation, Exceptions
Muscles: Semitendinosus, Semimembranosus, Biceps Femoris (Long and short heads), Origin: Ischial Tuberosity Action: Extend Hip, Flex Knee Innervation: Tibial n. Exceptions: Biceps Femoris Short Head (common fib. n., only flex knee),
55
Posterior Compartment of Leg Muscles, Action, Innervation, Exceptions
Muscles: Gastrocnemius, soleus, plantaris, popliteus, Flexor digitorum longus, Flexor hallicus longus, Tibialis posterior Actions: Plantarflex ankle, flex toes Innervation: Tibial n. (sural cutaneous sensation) Exceptions: Tibialis posterior (invertor), gastrocnemius, poplitius (knee flexor)
56
Layer 1 foot
Abductor hallucis, abductor digiti mini, flexor digitorum brevis
57
Layer 2 foot
tendon of flexor hallucis longus, tendon of flexor digitorum longus, quadratus plantae, lumbricals
58
Layer 3 foot
flexor hallucis brevis, adductor hallucis (oblique and transverse heads), flexor digit minimi brevis
59
Layer 4 foot
Plantar Interossei (3, PAD), Dorsal Interossei (4, DAB)
60
Anterior Compartment of Thigh Muscles, Action, Innervation, Exception
Muscles: Rectus femoris, vastus lateralis, vastus intermedius, vastus medialis, Iliopsoas, Sartorius, Pectineus Action: Flex hip, extend knee Innv: Femoral n. (ant. cutaneous and saphenous cutaneous innv) Exceptions: Pectineus (may receive obturator n., doesnt extend knee)
61
Medial Compartment of Thigh Muslces, Origin, Action, Innervation, Exceptions
Muscles: Adductor longus, Adductor brevis, Adductor magnus (Adductor part), Gracilis, Obturator Externus Origin: Pubis Action: Adduction of hip Innervation: Obturator n. Exceptions: Adductor Magnus (1/2 obturator n, 1/2 tibial n., hamstrings part extends hip), Gracilis (knee flexion), obturator externus (lateral rotation of hip)
62
Anterior Compartment of the Leg Muscles, Actions, Innervation, Exceptions
Muscles: Tibialis Anterior, Extensor Hallucis Longus, extensor Digitorum Longus, Fibularis Tertius Actions: Dorsiflex Ankle, Extend Toes Innervation: Deep fibular n. Exceptions: Fibularis Tertius (evertor), Tibialis Anterior (invertor)
63
Lateral Compartment of Leg Muscles, Actions, Innervation
Muscles: Fibularis longus, Fibularis brevis, Actions: Plantarflex ankle, evert food Innv: superficial fibular n.
64
Steps of Gait
Double Support 1 --> Single Support (stance) --> Double Support 2 --> Swing
65
Gait: Gluteus Maximus
Stabilizes trunk to prevent jack-kniffing. Lurch gait occurs via injury to inferior gluteal nerve
66
Gait: Quadriceps
Stabilize knee during Single Support
67
Gait: Gluteus medius and minimus
Stabilize pelvis in SS Waddling gait occurs via injury to superior gluteal nerve
68
Gait: SF Plantarflexors
accelerate body up and forward (push-off muscles)
69
Gait: Iliopsoas
Initiates limb swing
70
Gait: Hamstrings
Decelerate and reposition swinging limb
71
Gait: Dorsiflexors
prevent toe drag in limb swing, position foot for heel strike, prevent foot drop Steppage gait occurs via injury deep fibular nerve, lack of heel strike

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