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MAK 121 - Muscle Group 3 - Origins, Insertions & Actions
Flashcards & Quiz for MAK 121 Group 3 Muscles, Origins Insertion & Actions
54
Anatomy
Undergraduate 1
01/18/2011

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Term
Adductor Brevis (Origin)
Definition
Inferior ramus of the pubis
Term
Adductor Brevis .(Insertion)
Definition
Pectineal line of femur, and medial lip of linea aspera
Term
Adductor Brevis _(Action)
Definition
Hip: Adduction, assist in flexion and medial rotation
Term
Adductor Longus (Origin)
Definition
Pubic tubercle
Term
Adductor Longus .(Insertion)
Definition
Medial lip of linea aspera
Term
Adductor Longus _(Action)
Definition
Hip: Adduction, assist in flexion & medial rotation
Term
Adductor Magnus (Origin)
Definition
Inferior ramus of pubis, ramus of ischium, ischial tuberosity
Term
Adductor Magnus .(Insertion)
Definition
Medial lip of linea aspera, and adductor tubercle
Term
Adductor Magnus _(Action)
Definition
Hip: Adduction & medial rotation, assist in flexion
Term
Extensor Digitorum Longus (Origin)
Definition
Lateral condyle of tibia, proximal 2/3 of anterior shaft of fibula, interosseous membrane
Term
Extensor Digitorum Longus .(Insertion)
Definition
Middle & distal phalanges of the 4 lateral toes
Term
Extensor Digitorum Longus _(Action)
Definition
Toes: Extension of 4 lateral toes; Foot: Eversion; Ankle: Dorsiflexion
Term
Extensor Hallucis Longus (Origin)
Definition
Middle anterior shaft of fibula, and interosseous membrane
Term
Extensor Hallucis Longus .(Insertion)
Definition
Distal phalanx of great toe
Term
Extensor Hallucis Longus _(Action)
Definition
Toe: Extension of great toe; Foot: Inversion; Ankle: Assist in dorsiflexion
Term
Flexor Digitorum Longus (Origin)
Definition
Middle posterior surface of tibia
Term
Flexor Digitorum Longus .(Insertion)
Definition
Distal phalanges of 4 lateral toes (excluding great toe)
Term
Flexor Digitorum Longus _(Action)
Definition
Toes: Flex 4 lateral toes; Foot: Inversion; Ankle: Assis in plantarflexion
Term
Flexor Hallucis Longus (Origin)
Definition
Middle half of posterior fibula
Term
Flexor Hallucis Longus .(Insertion)
Definition
Distal phalanx of great toe
Term
Flexor Hallucis Longus _(Action)
Definition
Toe: Flexion of great toe; Foot: Inversion; Ankle: Assist in plantarflexion
Term
Gluteus Medius (Origin)
Definition
Posterior Iliac Crest
Term
Gluteus Medius .(Insertion)
Definition
Greater trochanter of the femur
Term
Gluteus Medius _(Action)
Definition
Hip: Abduct, flex, extend; may medially and laterally rotate
Term
Gluteus Minimus (Origin)
Definition
Inferior posterior iliac crest
Term
Gluteus Minimus .(Insertion)
Definition
Greater trochanter, anterior surface
Term
Gluteus Minimus _(Action)
Definition
Hip: Abduct, medially rotate and flex
Term
Gracilis (Origin)
Definition
Inferior ramus of pubis, ramus of ischium
Term
Gracilis .(Insertion)
Definition
Proximal medial shaft of the tibia at pes anserinus tendon
Term
Gracilis _(Action)
Definition
Hip: Adduction, medial rotation; Knee: Flexion, medial rotation
Term
Iliopsoas (Origin)
Definition
Psoas major - bodies & transverse processes of the lumbar vertebrae); Iliacus - iliac fossa
Term
Iliopsoas .(Insertion)
Definition
Lesser trochanter of the femur (under the inguinal ligament)
Term
Iliopsoas _(Action)
Definition
Hip: Flexion (main hip flexor), adduction, lateral rotation
Term
Pectineus (Origin)
Definition
Superior ramus of the pubis
Term
Pectineus .(Insertion)
Definition
Pectineal line of femur
Term
Pectineus _(Action)
Definition
Hip: Adduction, assist in flexion & medial rotation
Term
Peroneus Brevis (Origin)
Definition
Distal 2/3 of lateral fibula
Term
Peroneus Brevis .(Insertion)
Definition
Tuberosity of the 5th metatarsal
Term
Peroneus Brevis _(Action)
Definition
Foot: Eversion; Ankle: Assist in plantarflexion
Term
Piriformis (Origin)
Definition
Anterior surface of the sacrum
Term
Piriformis .(Insertion)
Definition
Greater trochanter of the femur
Term
Piriformis _(Action)
Definition
Hip: Lateral rotation; abducts thigh when hip is flexed
Term
Plantaris (Origin)
Definition
Lateral epicondyle of the femur
Term
Plantaris .(Insertion)
Definition
Calcaneous via calcaneal tendon
Term
Plantaris _(Action)
Definition
Weak plantarflexion of talocrural joint
Term
Popliteus (Origin)
Definition
Lateral condyle of the femur
Term
Popliteus .(Insertion)
Definition
Posterior proximal tibial shaft
Term
Popliteus _(Action)
Definition
Knee: Medial rotation and flexion; unlocks the knee after TFL locks it during ambulation
Term
Sartorius (Origin)
Definition
ASIS
Term
Sartorius .(Insertion)
Definition
Proximal medial shaft of the tibia at pes anserinus tendon
Term
Sartorius _(Action)
Definition
Hip: Flexion, lateral rotation & abduction; Knee: Flexion, medial rotation
Term
Tibialis Posterior (Origin)
Definition
Proximal posterior shaft of the tibia, proximal fibula, & interosseous membrane
Term
Tibialis Posterior .(Insertion)
Definition
Navicular cuneiform, cuboid & base of 2nd – 4th metatarsal
Term
Tibialis Posterior _(Action)
Definition
Foot: Inversion; Ankle: Plantarflexion
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