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Medical Biology > Muscles of Lower Limbs function > Flashcards

Muscles of Lower Limbs function Flashcards

1
Q

Psoas major

A

Location: anterior thigh
Action: flexor of the thigh; flexes the trunk (sitting up)
Group: Hip

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2
Q

psoas minor

A

Location: anterior thigh
Action: weak flexor of spinal cord
Group: Hip

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3
Q

Iliacus

A

Location: anterior thigh
Action: flexor of thigh: when femur is fixed, flexes the trunk as in sitting up

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4
Q

gluteus maximus

A

Location: posterior thigh
Action: abducts, extends, and laterally rotates the hip
Group: Glutes

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5
Q

gluteus medius

A

Location: posterior thigh
Action: abducts the thigh, stabilizes the hip. rotates thigh
Group: Glutes

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6
Q

Gluteus minius

A

Location: hip posterior region
Action: abduct the thigh, stabilizes the hip, rotates thigh
Group: Glutes

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7
Q

Tensor fasciae latae

Hint: balance a latte on hip

A

Location: lateral side of thigh
Action: tenses the fascia lata; abductor and internal rotator of thigh; stabilization of the hip and knee joints
Group: Glutes

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8
Q

Obturator externus

A

Location: tucked under hip joint
Action: externally rotates thigh and stabilizes the pelvis
Group: Thigh Lateral Rotators

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9
Q

Obturator internus

A

Location: inbetween superior and inferior gemellus
Action: laterally rotates thigh when extended; abducts thigh when flexed
Group: Lateral Rotators

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10
Q

Superior gemellus

A

Location: lateral, near hip joint
Action: external rotation, adduction, and extension of hip joint; acts as abductors when thigh is flexed
Group: Lateral Rotators

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11
Q

Inferior gemellus

A

Location: lateral, near hip joint
Action: external rotation, adduction, and extension of the hip joint; act as abductors when the thigh is flexed
Group: Lateral Rotators

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12
Q

Quadratus femoris

A

Location: inferior to the rest of the thigh lateral rotators
Action: external rotation and adduction of hip
Group: Lateral Rotators

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13
Q

Priformis

A

Location: lateral, near hip joint
Action: external rotation, abduction, extension of hip joint; aids in stabilization of the hip
Group: Lateral Rotators

pigeon pose

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14
Q

Thigh Lateral Rotators (Superior to Inferior)

A

Patch Goods Often Go on Quilts -> Piriformis, Gemullus Superior, Obturator Interus, Gemellus Inferior, Obturator Extermus, Quadraturis Femuris

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15
Q

Satorius

A

longest muscle in the body
Location: runs from front of pelvis to top of tibia
Action: hip flexion, external rotation and abduction

Sartor = tailor, tailor sit cross legged to test satorius

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16
Q

Vastus lateralis

A

Location: lateral thigh
Action: extension of leg at knee joint
Group: Quadriceps

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17
Q

Vastus Intermedialis

A

Location: inbetween Vastus lateralis and vastus medius
Action: extension of leg at knee joint
Group: Quadriceps

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18
Q

Vastus Medius

A

Location: most medial of quads in anterior region of thigh
Action: extension of leg at knee joint
Group: Quadriceps

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19
Q

Rectus Femoris

A

Loction: most anterior of quads
Action: extends knee and hip flexor
Group: Quadriceps

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20
Q

Biceps Femoris

A

Location: posterior region of thigh; most lateral of hamstrings
Action: flexs knee; rotates tibia outward (laterally)
Group: Hamstrings

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21
Q

Semitendinosus

A

Location: posterior region of thigh; medial of hamstrings
Action: flexes knee; rotates leg medially
Group: Hamstrings

thinner, tendon-looking

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22
Q

Semimembranosus

A

Location: posterior region of thigh; medial of hamstrings
Action: flexes knee; rotates leg medially
Group: Hamstrings

wider -> sprawling membrane

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23
Q

Adductor brevis

A

Loction: medial region of thigh
Action: adducts the thigh, rotates thigh medially
Group: Adductors

shortest of adductors

24
Q

Adductor Longus

A

Location: medial region of thigh
Action: adduct thigh, rotates thigh medially
Group: Adductors

longest of adductors

25
Adductor Magneus
Location: big triangle-like muscle on medial region of thigh Action: adduct thigh, rotates thigh medially Group: Adductors
26
MLB
adductors - Magnus, Longus, Brevis ## Footnote baseball players have nice thighs
27
Gracilis
Loctation: medial region of thigh, runs from pubis to tibia Action: medially rotates thigh, thigh adductor, flexes knee Group: adductor ## Footnote long and thin, need to be graceful
28
Pectineus
Location: most superior of adductors, medial thigh region Action: adducts, flexes, and externally (laterally) rotates Group: adductors ## Footnote close to "peaches" of butt
29
Tibial Anterior
Location: front of tibia to medial side of foot Action: dorsiflexion and inversion of foot Group: Lower Leg - Anterior
30
Extensor digitorum longus
Location: lateral region of tibia to distal phalanges Action: extends digits of foot; dorsiflexes foot Group: Lower Leg - Anterior
31
Extensor hallucis longus
Location: anterior surface of fibula to hallux Action: extends big toe (hallux) Group: Lower Leg - Anterior
32
Fibularis tertius
Location: distal part of tibia to metarasal of pinky toe Action: dorsiflexes and everts ankle Group: Lower Leg - Anterior
33
Fibularis longus
Location: lateral region of the distal surface fibia to metatarsal 5 Action: plantar flex and evert ankle Group: Lateral Lower Leg
34
Fibularis brevis
Location: lateral region of the distal 2/3 of fibula to metatarsal 1 (pinky) Action: planterflexes and everts ankle, supports foot arch Group: Lateral lower leg
35
Gastrocnemius
Location: outmost muscle of posterior region of leg Action: plantar flexon of foot, flexes leg at knee joint Group: Posterior Lower Leg ## Footnote belly of muscle -> gastro
36
Soleus
Location: posterior surface of fibular shaft to posterior side of calcaneus Action: planter flexion of foot Group: Posterior Lower Leg
37
Achilles tendon
- gastrocnemius and soleus join here to insert to heel (calcaneus)
38
Plantaris
Location: femur -> run along lateral side of calf -> posterior calcaneus Action: plantarflex foot, flexes knee Group: Posterior Lower Leg
39
Popliteus
Location: behind the knee Action: unlocks knee Group: Posterior Lower Leg
40
Tibialis Posterior
Location: posterior surface of tibia to foot Action: plantar flexion of foot; inverts and adducts foot Group Deep posterior lower leg
41
Flexor digitorum longus ## Footnote good d make u curl your toes (sorry)
Location: posterior surface of tibia to foot Action: curl toes, inversion and plantarflexion of foot Group: Deep posterior lower leg
42
Flexor hallucis longus
Location: 2/3 thirds of posterior fibula to big toe Action: curl big toe, inversion and plantarflexion of foot Group: Deep Posterior Lower Leg
43
Deep Posterior Lower Leg muscles
Tom Dick Harry -> Tibialis posterior, flexor digitorum longus, flexor hallucis longus
44
Extensor digitorum brevis
Location: dorsal surface of foot Action: extends digits Group: Dorsal Foot
45
Extensor hallucis brevis
Location: dorsal portion of heel to dorsal surface of big toe Action: extends hallux Group: Dorsal Foot
46
Dorsal Interossei
Loction: inbetween metatarsal bones Action: abduct metatarsals Group: dorsal foot
47
Abductor hallucis
Location: Medial side of foot Action: abducts hallux, supports foot arch Group: Plantar foot
48
Abductor digiti minimi
Location: lateral side of foot Action: abducts pinky Group: Plantor foot
49
Flexor digitorium brevis
Location: underside of foot Action: flexes digits Group: Plantar Foot
50
Qudratus Plantae
Location: bottom of calcaneus to foot Action: pull toes upward Group: Deep Foot (Plantar Layer 2)
51
Lumbricals
Location: under side of foot Action: flexes metatarsophalangeal joints Group: Deep Foot (Planter Layer 2)
52
Flexor hallucis brevis
Location: cuneiform/cuboid bone to undersid of big toe Acton: bends joint of big toe Group: Deep Foot (Plantar Layer 3)
53
Flexor digiti minimi brevis
Location: metatarsal bone to pinky toe (underside) Action: bends pinky toe Group: Deep Foot (Plantar Layer 3)
54
Adductor hallucis
Location: triangle shaped muscle on underside of metatarsals Action: adduct big toe, support foot arch Group: Plantar foot
55
Opponens digiti minimi
Location: 5th metatarsal Action: flexes pinky toe Group: Plantar Layer 3

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