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Class Topics

Notes – Arm muscles Power point time “The most effective way to cope with change is to help create it.” L.W. Lynett. Title: Anat & Phys 1/26/07 . Class Topics. Objectives:. Friday, December 20, 2019 10:22 AM. Class Assignments. What. By When. Lab Practical II 2/5/07

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Class Topics

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  1. Notes – Arm muscles Power point time “The most effective way to cope with change is to help create it.” L.W. Lynett . Title: Anat & Phys 1/26/07 Class Topics Objectives: Friday, December 20, 201910:22 AM

  2. Class Assignments What By When • Lab Practical II 2/5/07 • Due this class period • Due next class period • Due in the future

  3. Power Point • One slide for each muscle identified in the cat • The muscle must be labeled • Either by an arrow, a number or by name on the picture • This is mostly for your review purposes!

  4. Pectoantebrachialis Pectoralis major Pectoralis minor Xiphihumeralis Serratus anterior Latissimus dorsi Spinotrapezius Acromiotrapezius Clavotrapezius Rhomboidius major Rhomboideus minor Levator Scapulae Teres major Clavobrachialis Acromiodeltoid Spinodeltoid Sternomastoid Cleidomastoid Sternohyoid Digastric Muscles to be identified in the cat

  5. From: http://www.bio.psu.edu/people/faculty/strauss/anatomy/musc/upperarm.htm

  6. Biceps brachii • Attachments • short head • coracoid process • long head • glenoid tuberosity (glenoid cavity) • Radial tuberosity • Bicepital aponeurosis • Action • Flexes forearm

  7. From: http://www.bodybuilding.com/fun/exercises.htm

  8. Triceps brachii • Attachments • Proximal • Lateral head • superior margin of humerus • Long head • Glenoid tuberosity (Glenoid cavity) • medial head • Humerus • Distal • Olecranon process • Action • Extends forearm

  9. Epitrochlearis • Only in cat • Covers the triceps brachii

  10. Brachioradialis • Attachments • Lateral epicondyle of humerus • Styloid process of radius • Actions • Flexes forearm

  11. Brachialis • Attachments • distal surface of humerus (shaft) • Coronoid process of ulna • Actions • Flexes forearm

  12. From: http://www.bodybuilding.com/fun/exercises.htm

  13. Rectus Abdominis • Attachments • Pubic symphysis • Xiphoid process, costal cartilage of ribs 5-7 • Actions • Flexes vertebral column • depresses ribs

  14. External Oblique • Attachments • Lower eight ribs • linea alba, and iliac crest • Actions • compresses abdomen, flexes or bends spine

  15. Internal Oblique • Attachments • Lumbodorsal fascia, iliac crest • Lower ribs, xiphoid process, linea alba • Actions • Same as external oblique

  16. Transverse Abdominis • Attachments • Lower ribs, iliac crest, lumbodorsal fascia • Linea alba, pubis • Actions • compresses abdomen

  17. Dissection activities • Continue dissection of arm muscles • Dissection of abdominal muscles • Have to go through thick fascia to get to rectus abdominis • External oblique is already visible • You must CUT through the external oblique to get to internal oblique and transverse abdominis • Check the direction the fibers are running!

  18. Biceps brachii Triceps brachii Long head Lateral head Medial head Epitrochlearis Brachialis Brachioradialis Rectus abdominis Internal oblique External oblique Transverse abdominis Lab Practical II As well as all muscles from Lab Practical I

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