PSIO 201 5th Edition Lecture 25 Outline of Last Lecture Muscle Gross Anatomy II Outline of Current Lecture I Muscle Gross Anatomy II II Thigh Muscles Characteristic Description Direction of muscle fibers Rectus Fibers run parallel to the midline Transverse Fibers run perpe the midline Oblique Fibers run diagonal to the midline Size Maximus Largest Minimus Smallest Longus Longest Location Named for the bone s to which the muscle attaches or region within w muscle is found Shape Deltoid Triangular shape Rhomboid Diamond shape Trapezius Trap Number of origins Biceps Two origins Triceps Three origins Quadriceps Four origins Action Named for the action that the muscle performs III Action Current Lecture Muscles that move the thigh These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute Muscle Location Iliopsoas Iliacus and Psoas major Muscles of the anterior hip The iliacus originates on the ilium and psoas major originates on th vertebrae Both muscles insert on the proximal femur Tensor fascia latae Muscle of the lateral hip and thigh that originates on the iliac crest and inserts on the proximal l tibia via the iliotibial tract Gluteus maximus Large superficial muscle of the posterior hip that originates on the ilium and sacrum and inserts gluteal tuberosity of the femur Gluteus medius Deep to the gluteus maximus the gluteus medius originates on the posterior ilium and inserts on greater trochanter of the femur Gluteus minimus Deep to the gluteus medius the gluteus minimus originates on the posterior ilium and inserts on greater trochanter of the femur Gracilis Muscle of the medial thigh that originates on the pubis and inserts on the medial surface of the proximal tibia Adductor magnus A deep adductor muscle that originates on the ischium and pubis and inserts on the linea aspera femur Adductor longus Originates on the pubis and inserts on the linea aspera of the femur Adductor brevis Originates on the pubis and inserts on the linea aspera of the femur PSIO 201 Required Handout Department of Physiology Muscles that move the leg and foot The structure of the knee joint allows for flexion and extension while the ankle joint allows for flexion extension eversion and inversion TABLE 10 Muscles that move the leg Muscle Quadriceps femoris Location Muscle of the anterior thigh that originates on the anterior ilium and inserts on the Ac Fl Rectus femoris Vastus lateralis Vastus medialis tibial tuberosity via the patellar ligament Originates on the proximal femur and inserts on the tibial tuberosity Originates on the linea aspera of the femur and inserts on the tibial tuberosity Vastus intermedius Originates on the anterior and lateral surfaces of the body of the femur and inserts on the tibial tuberosity Sartorius Called the tailor s muscle the sartorius is the longest muscle in the body It originates on the ilium and inserts on the medial body of the tibia Hamstrings group Biceps femoris Semimembranosus Semitendinosus Ex Ex Ex Fl
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