University:
Central Arizona College
Course:
BIO160 | Intro to Human Anatomy and Physiology
Academic year:

2023
Views:

467

Pages:

2
Author:

Lucas H.

Muscles Qangle central line of pull for entire quadriceps runs from ASIS to the conter of patьни -Ling of pull of patoila tenden runs from center of Patolla to center of tibial tuberosity Anqis formed by the intersection of these a sines at the patella is the angre -Normally, angle will be 15" or loss for maiss and 20 or less in females Quadriceps muscle group knse extension 4 muscl65 Rectus femoris vastus lateralis vastus intermedius vastus medialis All attached to patella then to tibial euberosity via Priollar tendon vastus Lateralis orgin: intertrochanteric une greater trecher Insertion: Lateral border of patella, tibial tuberosity Action: knee cxtension Rectus Femoris orgin Anterior inferior iliac spine, groove above acetabulum Insertion: Superior patolla, tibial tuberosity Action: Extension of knes Flesion of hip - Anterior filt vastus intermedius orgin upper anterior surface of femur Insertion: upper border of patella, tibial tuberosity. Action -knes extension vastus Medialis orgin: Length of femur, medial condyloid ridge insertion: Medial half of upper border patella, tibial tuberosity Action: -knes extension ) Gracilis orgin: Anteromedial edge of the pubis ramus Insertion: Anterior medial surface of the tibia, just below the media condule Muscles Hamstring responsible for knee flexion Action Adduction -Internal rotation -weak hip flexion internal rotation of the knee 3 muscles Semitendinosus-medial, internal rotator semimembranosus-medial, internal star Biceps Femoris lateral, external rotator Popliteus assists with knee internal station sarteruis, gastrocnemius, Gracilis assist with knee flexion