2.3 Lower Limbs - Muscle and Fascia Flashcards
The gluteal fascia covers the
Gluteus medius muscle
Encloses the large thigh muscles
Fascia Lata
The femoral triangle is formed by
Inguinal ligamentAdductor longusSartorius
The femoral triangle contains the
Deep inguinal lymph nodesFemoral veinFemoral arteryFemoral nerve
The femoral sheath encloses the
Femoral vessels
Is the thickened lateral part of fascia lata
Iliotibial tract
Also the deep fascia of the leg
Crural fascia
Largest part of the pelvic girle
Ilium
Extension and lateral rotation of the thighStrongest extensor of the hop
Gluteus maximus
Supplies the gluteus minimus and medius
Superior gluteal artery
Abducts and stabilizes the thighMedially rotates the thigh
Gluteus medius and minimus
Innervates the tensor fasciae latae
Superior gluteal neurovascular bundle
Landmark of the gluteal regionpear-shaped
Piriformis
Occupe the gap between the piriformis and the quadratus femoris muscle
Triceps coxae
Rectangular muscle, short, flat, loacted inferior to the obturator internus and gemelli;Strong lateral rotator of the thigh
Quadratus femoris
Aponeurotic attachment for thigh adductors
Linea Aspera
Most powerful hip flexor with the longest rangeAttached to the vertebral column; pelvis, and femurResists hyperextension of the hip joint
ILIOPSOAS (Iliacus and psoas muscle)
Tailor’s positionMuscle for the cross-legged positionLongest muscle of the bodyCross the hip and knee joint
Sartorius
Great extensor of the legMain bulk of the anterior thigh muscles
Quadriceps femoris
The kicking muscleOnly part of the quadriceps femoris that crosses the hip jointCapable of flexing the thigh at hip joint and extending the lef at the knee joint
Rectus femoris
largest component of the quadriceps muscle
Vastus lateralis
Supplies all the adductor muscles except the hamstring part of the adductor magnus
Obturator nerve
Supplies the hamstring part of the abductor magnus
Tibial part of the sciatic nerve
Weakest member of the adductor groupMost mediual muscle of the thighCrosses both hip and knee joints
Gracilis
Blood supply of the thigh adductors
Obturator artery
Blood supply of the posterior thigh muscles
Perforating branches of the profunda femoris artery
Only muscle that stabilizes the knee joint
Quadriceps femoris
Ligament that is the continuation of the quadriceps femoris tendonAnterior ligament of the knee
Patellar ligament
Receives the lateral and medial retinacula
Patellar ligament
Prevents hyperextension, abduction, and adduction of the knee jointStronger of the two collateral ligaments
Lateral/fibular collateral ligament
ligament firmly attached to the edge of medial meniscusCommonly injured in contact sports
Medial/tibial collateral ligament
Main bond between femur and tibia throughout the joints’ range of motion
Cruciate ligaments
Prevents posterior displacement of the femur on the tibiaMost frequently injured ligament
ACL
Prevents anterior displacement of the femur on the tibia
PCL
C shaped meniscus of the knee joint
Medial meniscus
O shaped meniscus of the knee joint
Lateral meniscus
Strongest dorsiflexor and inverter of the foot
Tibialis anterior
Everts and dorsiflexes the foot
Peronius tertius
Innervation of deep posterior leg compartment
Tibial nerve
Flexor of the knee joint from the deep posterior leg compartment
Popliteus muscle
Often injured during excessive inversion of plantar flexed foot
Anterior talofibular ligament
Blood supply of the ankle region
Malleolar branches of fibular artery andanterior and posterior tibular arteries
Nerve supply of sole
Lateral and medial plantar nerve
Abducts and flexes the 1st digit
Abductor hallucis
Nerve supply of abductor hallucis
Medial plantar nerve
Flexes the lateral four digits of the foot
Flexor digitorum brevis
Nerve supply of flexor digitorum brevis
Medial plantar nerve
Abducts and flexes the 5th digit
Abductor digiti minimi
Nerve supply of the abductor digiti minimi
Lateral plantar nerve
Assists in flexing lateral 4 digits of the foot
Quadrates plantae
Flexes proximal phalanx of first digit of foot
Flexor hallucis brevis
Nerve supply of the anterior thigh except pectineus
Femoral nerve
Nerve supply of the pectineus
Obturator and femoral nerve