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Chapter 8

Lower Limb

7 Tarsal bones Calcaneus, Talus, Navicular, Medial Cuneiform, Middle Cuneiform, Lateral Cuneiform, Cuboid
Which bone is a weight bearing bone in the leg? Tibia Bone
what is the largest and most complex joint of the body? Knee Joint
what 3 joints and cavity form the knee joint? intermediate patellofemoral joint, lateral biofemoral joint, medial joint, synovial cavitiy
tibial (medial) and fibular (lateral) collateral ligament prevents side-to-side movement
Anterior Cruciate ligament prevents hypertension of knee and prevents anterior sliding of tibia on femur
Posterior Cruciate ligament prevents posterior sliding of tibia on femur
Menisci disperse friction on knee
Unhappy Triad rupture of medial collateral ligament, tearing of anterior cruciate ligament and medial meniscus
what spinal nerves make up the Lumbar Plexus L1-L4
what spinal nerves make up the Sacral Plexus L4-S4
Major nerves of Lumbar Plexus Femoral Nerve and Obturator Nerve
Major nerves of Sacral Plexus Sciatic nerve
Sciatic nerve longest and thick nerve of the body
What is inverted in the Femoral Nerve Iliacus, Psoas Major, rectus femoris, vastus lateralis, vastus medialis, vastus intermedius and sartorius
What is inverted in the Obturator Nerve Adductor longus, adductor magnus, gracilis
What is inverted in the Superior Gluteal Nerve gluteus medius, tensor fasciae latae
What is inverted in the Inferior Gluteal Nerve Gluteus Maximus
Injury in Common Fibula Nerve foot drop
What is inverted in the Sciatic Nerve biceps femoris, semitendinosus, semimembranosus, adductor magnus
What is inverted in the Tibial Nerve gastrocnemius, soleus, tibialis posterior, flexor digitorum longus, flexor hallucis longus
What is inverted in the Deep fibular Nerve tibialis anterior, extensor hallucis longus, extensor digitorum longus
What is inverted in the Superficial Fibular Nerve fibularis longus, fibularis brevis
What muscle is inverted by both obturator and sciatic nerve? adductor magnus
Intramuscular injection site gluteus medius, vastus lateralis, deltoid
Femoral Triangle inguinal ligament, sartorius, adductor longus floor: iliopsoas
Contents of femoral triangle: femoral vein, femoral artery, femoral nerve, deep inguinal lymph nodes, and GREAT Saphenous vein
Popliteal Fossa Semitendinousus, Semimembranousus, biceps femoris, gastrocnemius
Contents of Popliteal Fossa politeal artery and vein, bifurcation of sciatic nerve into tibial & common fibular nerve, entrance to SMALL Saphenous vein
Great Saphenous Vein longgest vein in body, medial side of lower limb, empties into femoral vein, becomes varicose with formation of clots, used in coronary bypass surgery, used to prolonged IV
What muscles INSERT @ Lesser Trochanter of femur Psoas Major and Iliacus
Actions of Psoas Major and Iliacus flex thigh, laterally rotates thigh
ORIGIN of Gluteus Maximus Iliac crest, sacrum, coccyx
INSERTION of Gluteus Maximus Iliotibial tract, linea aspera
Action of Gluteus Maximus extends @ thigh, laterally rotates thigh
ORIGIN of Gluteus Medius Ilium
INSERTION of Gluteus Medius great trochanter of femur,
Action of Gluteus Medius abducts thigh, medially rotates thigh
ORIGIN of Tensor Fasciae Latae Iliac Crest
INSERTION of Tensor Fasciae Latae Tibia by way of Iliotibial tract
ORIGIN of Piriformis Anterior Sacrum
INSERTION of Piriformis Greater Trochanter of femur
Action of Piriformis Abducts thigh, laterally rotates thigh
What 3 muscles Adduct and flex thigh? Adductor Longus, Adductor Magnus, Gracilis
ORIGIN of Adductor Longus Pubic Symphysis
INSERTION of Adductor Longus AND Adductor Magnus Linea Aspera
ORIGIN of Gracilis Inferior Ramus of Pubic
INSERTION of Gracilis Medial of Tibia
ORIGIN of Adductor Magnus Inferior Ramus of Pubic and Ischium
What 4 muscles extend leg @ knee Rectus femoris, Vastus lateralis, Vastus Medialis, Vastus Intermedius
What muscles ORIGIN @ linea aspera Vastus Lateralis and Vastus Medialis
ORIGIN of Rectus Femoris Ant. Inf. Iliac Spine
What muscles INSERT @ Tibial Tuberosity? Rectus Femoris, Vastus lateralis, vastus medialis, vastus intermedius
ORIGIN of Vastus Intermedius Ant. Femur
ORIGIN of Sartorius Ant. Sup. Iliac Spine
INSERTION of Sartorius Medial Surface of Tibia
Action of Sartorius flexes leg @ knee, abducts, laterally rotates thigh
What 3 muscles compose the hamstrings Biceps Femoris, Semitendinosus, Semimembranosus
Action of Biceps Femoris, Semitendinosus, Semimembranosus flex leg and extend thigh
What muscles ORIGIN @ Ischial Tuberosity Biceps Femoris, Semitendinosus, Semimembranosus
Bicep Femoris also ORIGIN where? short head of Linea Aspera
INSERTION of Biceps Femoris head of fibula
INSERTION @ Medial surface & condyle of tibia? Semitendinosus and Semimembranosus
ORIGIN of Tibialis Anterior lateral condyle & body of tibia
INSERTION of Tibialis Anterior 1st cuneiform & 1st metatarsal
What muscles dorsi flex foot? Tibialis Anterior, Extensor Hallucis longus, Extensor digitorum longus
Other action of Tibialis Anterior inverts foot
Other action of Extensor Hallucis extend big toe
Other action of Extensor Digitorum Longus extend toes
What muscles Plantar flex foot and evert foot? Fibularis longus and brevis
ORIGIN of Fibularis longus head and body of fibula, lateral condyle of tibia
INSERTION of Fibularis longus 1st metatarsal and 1st cuneiform
What muscles only plantar flexes foot Gastrocnemuis and soleus
ORIGN of Gastrocnemius lateral & medial condyles of femur
ORIGIN of Soleus head of fibula and medial border or tibia
Created by: _melgozacaroo15



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