Muscle Action, Origin, Insertion and Innervation Flashcards

Thigh muscles
Terms Definitions
What are the 5 muscles that originate at the Pubis?
PectineusGracilisAdductor MagnusAdductor longusAdductor brevis
Name the action, origin, insertion and innervation of the pectineus muscle.
Action: Flexes and adducts thigh.Origin: Superior ramus of pubisInsertion: Femur, just distal to lesser trochanter.Innervation: Femoral Nerve (l2-L4)
Name the action, origin, insertion and innervation of the Gracilis muscle.
Action: Adducts thigh and flexes the leg.
 
Origin: Pubic symphsis and pubic arch.
 
Insertion: Medial surface of body of tibia.
 
Innervation: Obturator L2-L4
Name the action, origin, insertion and innervation of the Adductor magnus muscle.
Action: Adducts and medially rotates thigh. Anterior part flexes the thigh.Posterior part extends the thigh.Origin: Inferor ramus of pubis and ischium.Insertion: Linea aspera of femurNerve: Obturator (L2-L4)
Adductor longus origin and insertion:
Originates at pubis.Inserts at Femur
Adductor Brevis origin and insertion:
Originates at pubisInserts at Femur
Name the 6 muscles that originate at the Ilium.
IliacusSartoriusRectus femorisGluteus maximusGluteus mediusTensor fasciae latae
Name the action, origin, insertion and innervation of the Tensor Fasciae Latae muscle:
Action: Flexes and aBducts the thigh.Origin: Iliac crestInsertion: Tibia by way of iliotibial tract.Innervation: Superior Gluteal Nerve (L4, L5, S1)
Name the action, origin, insertion and innervation of the Sartorius muscle:
Action: Flexes leg Flexes and laterally rotates thigh to cross legs.
Origin: Anterior SUPERIOR iliac spine.
Insertion: Medial surface of body of tibia Innervation:
Femoral (L4-L5)
Name the action, origin, insertion and innervation of the Gluteus maximus:
Action:Extends and rotates thigh laterallyOrigin: Iliac crestInsertion: Iliotibial tract and gluteal tuberosity of femurInnervation: INFERIOR gluteal nerve (L5-S2)
Name the action, origin, insertion and innervation of the Rectus femoris:
Action: Flexes thigh and extends leg.Origin: Anterior INFERIOR iliac spineInsertion:Upper border of patellaInnervation: Femoral (L2-L4)
Name the 3 muscles that originate at the Ischium:
SemimembranosusSemitendinosusBiceps Femoris
Name the action, origin, insertion and innervation of the Semimembranosus:
Action:Flexes leg and extends thighOrigin:Ischial tuberosityInsertion:Medial condyle of tibiaInnervation: sciatic-tibial (L4-S3)
Origin of the semitendinosus:
Ischium
Name the action, origin, insertion and innervation of the Biceps femoris longhead:
Action:Flexes leg and extends thighOrigin:Ischial tuberosityInsertion: Head of fibula and lateral condyle of tibia.Innervation: Femoral (L2-L4)
Name the 5 bones that originate at the femur:
Vastus lateralisVastus medialisGastrocnemiusbiceps femoris (short head)Plantaris
Name the action, origin, insertion and innervation of the biceps femoris (short head)
Action: Flexes leg and extends thighOrigin:linea aspera of femurInsertion:Head of fuibula and lateral condyle of tibia.Innervation: Femoral (L2-L4)
Name the action, origin, insertion and innervation of the Gastrocnemius:
Action: Plantar flexes foot and flexes legOrigin:Lateral and medial condyles of femurInsertion:Calcaneus using achilles tendonNerve: Sciatic-tibial (L4-S3)
Name the 8 muscles that INSERT at the Femur:
Psoas MajorIliacusGluteus maximusGluteus mediusPectineusAdductor magnusAdductor longusAdductor brevis
What is the 1 muscle that inserts at the Patella?
Quadriceps femoris
What 4 muscles originate at the Tibia?
Tibialis anteriorFibularis longusExtensor digitorum longusSoleus
What 8 muscles insert at the Tibia?
Quadriceps femorisTensor fasciae lataesartoriusGracilisSemimimbranosusBiceps femorisSemitendinosusSemimembranosus
Name the action, origin, insertion and innervation of the Tibialis anterior:
Action:Dorsiflexes and inverts footOrigin:Lateral condyle and body of tibiaInsertion:1st metatarsal and tarsusNerve: DEEP fibular (L4-S2)
Name the action, origin, insertion and innervation of the Fibularis longus:
Action:Plantar flexes and EVERTS footOrigin:Head and body of fibula and lateral condyle of tibiaInsertion: First metatarsal and tarsusNerve: Superficial Fibular
Name the action, origin, insertion and innervation of the Extensor digitorum longus:
Action:Dorsiflexes and everts foot and extends toes.Origin:Lateral condyle of tibia and anterior surface of fibula.Insertion:Middle and distal phalanges of 4 outer toes.Innervation: Deep Fibular (L4-S2)
Name the 4 muscles that originate at the Fibula:
Fibularis longusFibularis brevisExtensor digitorum longusSoleus
what 1 muscle inserts at the fibula?
Biceps femoris.
What 5 muscles insert at the Tarsals?
GastrocnemiusSoleusPlantarisTibialis anteriorPeroneus longus
What 3 muscles insert at the Metatarsals?
Fibularis longusFibularis brevisTibialis anterior
What muscle inserts at the phalanges?
Extensor digitorum longus
Adductor Longus origin and insertion:
O: PubisI: Femur
Adductor Brevis origin and insertion
O: PubisI: Femur
Iliacus origin and insertion:
O: IliumI: Femur
Gluteus medius origin and insertion:
O: IliumI: Femur
Semitendinosus origin and insertion:
O: IschiumI: Tibia
Vastus Lateralis Origin:
O: Femur
Vastus medialis origin:
Femur
What is the origin of the Plantaris?
Femur
What is the origin and insertion of the Psoas major?
O: VertebraeI: Femur
What is the insertion of Quadriceps femoris? (2 bones)
patella and tibia
Origin and insertion of Fibularis longus
O: FibulaI: Metatarsals
Insertion of the soleus
Tarsals
what is the origin and insertion of the fibularis brevis
O: FibulaI: Tarsals and Metatarsals
What 4 muscles does the Femoral nerve innervate and what is its origin?
O: L2-L4Muscles:Iliacus, pectineus, sartorius, quadriceps femoris
What 4 muscles does the Obturator nerve innervate and what is its origin?
O: L2-L4Muscles:Gracilis, adductor longus, adductor brevis, adductor magnus
What muscle does the Superior gluteal nerve innervate and what is its origin?
O: L4-L5, S1Muscle: Gluteus mediusRemember medius is superior, maximus is inferior
What muscle does the Inferior gluteal nerve innervate and what is the origin?
O: L5-S2Muscle: Gluteus MaximusRemember, medius is superior and maximus is inferior
Sciatic/Tibial origin and 6 muscles of innervation:
O: L4-S3Muscles: Biceps femoris, semitendinosus, semimembranosus, gastrocnemius, soleus, plantaris
What 2 muscles does the Superficial fibular innervate and where is its origin?
Fibularis Longus and brevisOrigin at L4-S2
What 2 muscles does the Deep fibular nerve innervate and what is its origin?
Muscles: Tibialis anterior and extensor digitorum longusOrigin: L4-S2
What 2 muscles does the Deep fibular nerve innervate and what is its origin?
Muscles: Tibialis anterior and extensor digitorum longusOrigin: L4-S2
Name the 11 muscles that move the femur
IliopsoasIliacusPsoas majorGluteus maximusGluteus mediusTensor fasciae lataeIliotibial tractPectineusAdductors Magnus, Longus and brevis
Medial (ADDUCTOR) compartment of femur (4)
PectineusAdductor magnusAdductor brevisAdductor longus
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