Lab_2004_20Muscle_20Info

Lab_2004_20Muscle_20Info - Lab Manual Chapter 4 Muscle...

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Lab Manual Chapter 4 – Muscle Information For the exam, you should be able to identify every muscle on the Cadaver List on both the cadavers and models, as well as their actions (functions). For most muscles on the cadaver list, students are also required to know the attachment points (origin and insertion). This list of attachment points and actions is at the level of detail that you need to know for the exam; you are welcome but not required to learn the longer versions in your textbook. ANTERIOR MUSCLES Muscle Attachments Action Muscles of the Hip Psoas major O: transverse processes of lumbar vertebrae I: lesser trochanter of femur flexes and rotates thigh laterally Iliopsoas Iliacus O: iliac fossa I: lesser trochanter of femur flexes and rotates thigh laterally Note: use coxal model and/or skeletons to see the obturator foramen Muscles of the Thigh (femur) Rectus femoris O: anterior inferior iliac spine I: patella via quadriceps tendon, then tibial tuberosity via patellar ligament extends leg and flexes thigh Vastus lateralis O: linea aspera I: [same as rectus femoris] extends leg Vastus intermedius O: anterior femur I: [same as rectus femoris] extends leg Quadriceps femoris Vastus medialis O: linea aspera I: [same as rectus femoris] extends leg Tensor fascia latae O: iliac crest
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Lab_2004_20Muscle_20Info - Lab Manual Chapter 4 Muscle...

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