2015 Pearson Education, Inc.Muscles That Move the Foot and Toes

2015 Pearson Education, Inc.A&P Flix: Extensor Digitorum Longus

2015 Pearson Education, Inc.A&P Flix: Tibialis Anterior

2015 Pearson Education, Inc.A&P Flix: Soleus

2015 Pearson Education, Inc.Muscles of the Pelvic Girdle and Lower LimbsAction Line of MusclesWhen a muscle contracts, it develops tensionThe direction the muscle moves upon developing tension is known as the action lineThe following figures show the action line of muscles that move the thigh

2015 Pearson Education, Inc.

Figure 11.2 Factors Affecting Appendicular Muscle Function (7 of 7)

Action Lines at the Hip JointThe hip joint, like the shoulder joint, is a multiaxial synovial joint that permits flexion/extension,adduction/abduction, and medial/lateral rotation. Determining the action of a muscle on the hipis identical to the process utilized for the shoulder, in that the action of a muscle on the hip isdetermined by the structure of the joint and the location of the insertion of the muscle on thefemur (not shown) relative to the permitted axes of motion at the joint.AdductormagnusIliopsoas: flexionGluteus medius andminimus: abductionObturator externus: lateral rotationTensor fasciae latae: medial rotationAdductor longus: adductionHamstring group: extension andlateral rotationAction lines of the adductor magnusGluteal GroupExtensionExtension andabductionFlexion,abduction, andmedial rotationLateral Rotator GroupAdductor GroupExtension andlateral rotationAdductionANTERIORPOSTERIORGluteusmaximusGluteus mediusGluteus minimusTensorfasciaelataeAcetabulumHamstringgroupAdductorlongusAdductor magnus

2015 Pearson Education, Inc.Compartments and Sectional Anatomy of the Thigh and LegMusculoskeletal Compartments of the Thigh and LegLateral compartmentFibularis longusFibularis brevis

2015 Pearson Education, Inc.

Figure 11.28c Musculoskeletal Compartments of the Lower Limb

Tibialis anteriorAnterior tibialartery and veinFibularis longusTibialis posteriorPosterior tibial arteryand veinSoleusGastrocnemiusDeep Posterior CompartmentSuperficial Posterior CompartmentAnterior CompartmentLateral Compartment

cHorizontal section throughproximal right leg

2015 Pearson Education, Inc.Compartments and Sectional Anatomy of the Thigh and LegMusculoskeletal Compartments of the Thigh and LegSuperficial posterior compartmentGastrocnemiusSoleusPlantaris

2015 Pearson Education, Inc.

Figure 11.28c Musculoskeletal Compartments of the Lower Limb

Tibialis anteriorAnterior tibialartery and veinFibularis longusTibialis posteriorPosterior tibial arteryand veinSoleusGastrocnemiusDeep Posterior CompartmentSuperficial Posterior CompartmentAnterior CompartmentLateral Compartment

cHorizontal section throughproximal right leg

2015 Pearson Education, Inc.Compartments and Sectional Anatomy of the Thigh and LegMusculoskeletal Compartments of the Thigh and LegAnterior compartmentIliopsoasQuadriceps femorisSartoriusExtensor digitorum longusExtensor hallucis longusFibularis tertiusTibialis anterior

2015 Pearson Education, Inc.

Figure 11.28a Musculoskeletal Compartments of the Lower Limb

Anterior CompartmentRectus femorisVastus lateralisSartoriusVastus medialisFemoral artery, vein, and nerveAdductor longusAdductor magnusSciatic nerveBiceps femoris andsemitendinosisGluteus maximusMedial CompartmentPosterior CompartmentHorizontal section through proximal right thigh

a

2015 Pearson Education, Inc.

Figure 11.28b Musculoskeletal Compartments of the Lower Limb

Anterior CompartmentMedial CompartmentPosterior CompartmentRectus femorisFemoral artery,vein, andnerveVastus lateralisAdductor longusAdductor magnusSciatic nerveBiceps femorisHorizontal section through distal right thighb

2015 Pearson Education, Inc.

Figure 11.28c Musculoskeletal Compartments of the Lower Limb

Tibialis anteriorAnterior tibialartery and veinFibularis longusTibialis posteriorPosterior tibial arteryand veinSoleusGastrocnemiusDeep Posterior CompartmentSuperficial Posterior CompartmentAnterior CompartmentLateral Compartment

cHorizontal section throughproximal right leg

2015 Pearson Education, Inc.

Figure 11.28d Musculoskeletal Compartments of the Lower Limb

Anterior CompartmentDeep Posterior CompartmentSuperficial Posterior CompartmentLateral CompartmentTendon of tibialisanteriorAnterior tibial arteryand veinTendon of fibularislongusFlexor hallucis longusPosterior tibial arteryand veinSoleusCalcaneal tendonHorizontal sectionthrough distal right leg

d

2015 Pearson Education, Inc.Compartments and Sectional Anatomy of the Thigh and LegMusculoskeletal Compartments of the Thigh and LegMedial compartmentAdductor longusAdductor brevisPectineusAdductor magnusGracilisObturator externus

2015 Pearson Education, Inc.

Figure 11.28a Musculoskeletal Compartments of the Lower Limb

Anterior CompartmentRectus femorisVastus lateralisSartoriusVastus medialisFemoral artery, vein, and nerveAdductor longusAdductor magnusSciatic nerveBiceps femoris andsemitendinosisGluteus maximusMedial CompartmentPosterior CompartmentHorizontal section through proximal right thigh

a

2015 Pearson Education, Inc.Compartments and Sectional Anatomy of the Thigh and LegMusculoskeletal Compartments of the Thigh and LegDeep posterior compartmentPopliteusFlexor hallucis longusFlexor digitorum longusTibialis posterior