12MusclesWorksheet.doc - Anatomy 30 Lab Exercise 12...

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Anatomy 30 Lab Exercise 12 – Muscular System I. Lab Objectives A. Name and locate major muscles of the body B. Describe the actions of the muscles Activities – Label the following muscles on the attached muscle model pictures. Describe the actions of each muscle listed below. We will look at associated muscles of a cat in lab. The cat muscles can also be viewed on the Penn State Anatomy web site at: . Animations of muscle actions can be viewed at: . Head & shoulders model Orbicularis oculi Orbicularis oris Masseter Temporalis Sternocleidomastoid Platysma Ventral Torso Model, Tiny Tim, & Cat (Note that the Tiny Tim model shows superficial muscles on its right side and deep muscles on its left side in the torso region.) Pectoralis major Pectoralis minor Serratus anterior (ventralis) External intercostals Internal intercostals Diaphragm (internal) Rectus abdominis
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External oblique Internal oblique Transversus abdominis (internal)
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