ANTERIOR & MEDIAL COMPARTMENTS OF THIGH

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ANTERIOR & MEDIAL COMPARTMENTS OF THIGH. Prof. Ahmed Fathalla Ibrahim Professor of Anatomy College of Medicine King Saud University E-mail: ahmedfathala@hotmail.com. OBJECTIVES. At the end of the lecture, students should: List the name of muscles of anterior compartment of thigh. - PowerPoint PPT Presentation

Text of ANTERIOR & MEDIAL COMPARTMENTS OF THIGH

MUSCLES INVOLVED IN RESPIRATION

Prof. Ahmed Fathalla IbrahimProfessor of AnatomyCollege of MedicineKing Saud UniversityE-mail: ahmedfathala@hotmail.com

ANTERIOR & MEDIAL COMPARTMENTS OF THIGH

OBJECTIVESAt the end of the lecture, students should:List the name of muscles of anterior compartment of thigh.Describe the anatomy of muscles of anterior compartment of thigh regarding: origin, insertion, nerve supply and actions.List the name of muscles of medial compartment of thigh.Describe the anatomy of muscles of medial compartment of thigh regarding: origin, insertion, nerve supply and actions.Describe the anatomy of femoral triangle & adductor canal regarding: site, boundaries and contents.

The thigh is divided into 3 compartments by 3 intermuscular septa (extending from deep fascia into femur)Anterior CompartmentExtensors of knee: Quadriceps femorisFlexors of hip: 1. Sartorius 2. Pectineus 3. psoas major 4. IliacusNerve supply: Femoral nerve

Medial CompartmentAdductors of hip: 1. Adductor longus 2. Adductor brevis 3. Adductor magnus (adductor part) 4. GracilisNerve supply: Obturator nerve

Posterior CompartmentFlexors of knee & extensors of hip: HamstringsNerve supply: Sciatic nerveANTERIOR COMPARTMENT OF THIGH

SPPMIVastus Intermedius(deep to rectus femoris)RFVLVMNERVE SUPPLY:Femoral nerveQuadriceps femorisSARTORIUSORIGINAnterior superior iliac spineINSERTIONUpper part of medial surface of tibiaACTION(TAILORS POSITION)Flexion, abduction & lateral rotation of hip jointFlexion of knee joint

SSPECTINEUSORIGIN:Superior pubic ramusINSERTION:Back of femur (below lesser trochanter)ACTION:Flexion & adduction of hip joint

PPILIOPSOAS: ILIACUS & PSOAS MAJORINSERTION:Lesser trochanter of femur

ACTION:Flexion of hip jointPMIIPMQUADRICEPS FEMORISORIGIN:Rectus femoris: Anterior inferior iliac spine (Hip bone)Vastus intermedius:Front of shaft of femurVastus medialis:Posterior border of femurVastus lateralis:Posterior border of femur

QUADRICEPS FEMORISINSERTION:Into PATELLA (Patella is a sesamoid bone)From patella into TUBEROSITY OF TIBIA through LIGAMENTUM PATELLAE (PATELLAR LIGAMENT)ACTION:Extension of knee joint

MEDIAL COMPARTMENT OF THIGHMUSCLES:Adductor longusAdductor brevisAdductor magnus (Adductor part)GracilisACTION:ADDUCTION OF HIP JOINTN.B.: Gracilis also flexes knee jointNERVE SUPPLY:OBTURATOR NERVE

Adductor magnus(Adductor portion)Adductor magnus(Hamstring portions) ALABAMG

InsertionPosterior border of femur (Linea Aspera)Upper part of medialsurface of tibia (behind sartorius)Adductor longusAdductor brevisAdductor magnus(adductor part)GracilisOriginBody of pubisBody of pubisInferior pubic ramusInferior pubic ramusIschial ramusAdductor partHamstring partAdductor hiatusFEMORAL TRIANGLESITE:Upper third of front of thighBOUNDARIES:Base: inguinal ligamentLateral: medial border of sartoriusMedial: medial border of adductor longusROOF:SkinFasciae: superficial & deepFLOOR: From medial to lateralAdductor longusPectineusPsoas majorIliacus

Base: inguinal ligamentLateralMedialSALPPMIFEMORAL TRIANGLECONTENTS:Femoral veinFemoral arteryBoth vein & artery are enclosed in a fascial envelope (Femoral sheath)Femoral nerveDeep inguinal lymph nodes

DEFINITION: A fascial envelope for femoral artery & veinSITE: In middle third of front of thighEXTENT: From apex of femoral triangle to adductor hiatusBOUNDARIES: *Roof: Sartorius *Floor: Adductor longus & magnus

ADDUCTOR CANALSUMMARYMUSCLES OF ANTERIOR COMPARTMENT OF THIGH:Flexors of hip: Sartorius, pectineus, psoas major & iliacus (all are inserted into femur EXCEPT: Sartorius: inserted into tibia) N.B.: Tailors position performed by sartorius: flexion, abduction & lateral rotation of hip + flexion of knee.Extensors of knee: Quadriceps femoris All parts originate from femur EXCEPT: Rectus femoris: from hipAll parts are inserted into patellaNERVE SUPPLY: femoral nerve

SUMMARYMUSCLES OF MEDIAL COMPARTMENT OF THIGH:ACTION:All muscles adduct hip joint.Gracilis also flexes knee joint.ATTACHMENTS:All muscles originates from pubic bone.All muscles are inserted into posterior border of femur EXCEPT: gracilis: into tibia (as sartorius)NERVE SUPPLY: Obturator nerveQUESTION 1Which one of the following muscles is supplied by femoral nerve? SartoriusGracilisAdductor longusAdductor brevisQUESTION 2Which one of the following muscles is inserted into the tibia?SartoriusPectineusIliacusAdductor longus

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