1 / 14

Muscles of the Posterior and Anterior Trunk

Muscles of the Posterior and Anterior Trunk. Neck, Back, Shoulders, Chest and Abdomen. Sternocleidomastoid. Sternocleidomastoid. Trapezius : Most superficial muscle of the trunk and upper body. Diamond shaped muscle. Extends the head, elevates and stabilizes the scapula.

helen
Télécharger la présentation

Muscles of the Posterior and Anterior Trunk

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Muscles of the Posterior and Anterior Trunk Neck, Back, Shoulders, Chest and Abdomen

  2. Sternocleidomastoid

  3. Sternocleidomastoid • Trapezius: • Most superficial muscle of the trunk and upper body. • Diamond shaped muscle. • Extends the head, elevates and stabilizes the scapula.

  4. Sternocleidomastoid • Trapezius: • Most superficial muscle of the trunk and upper body. • Diamond shaped muscle. • Extends the head, elevates and stabilizes the scapula. • LatissimusDorsi: • Large flat muscles that cover the lower back. • Extend and adduct (bring toward midline) the humerus. • Important for power stroke or striking a blow.

  5. Deltoids: • Large, fleshy upper shoulder muscles. • Favorite injection site for smaller amounts of liquid (<5mL) • Prime movers for arm abduction (moving toward lateral side)

  6. Deltoids: • Large, fleshy upper shoulder muscles. • Favorite injection site for smaller amounts of liquid (<5mL) • Prime movers for arm abduction (moving toward lateral side) • Erector Spinae: • Deep muscles • 3 muscle columns on each side of the vertebrae • Powerful back extendors • Provide resistance that controls bending at the waist • Commonly causes lower back pain

  7. Deltoids

  8. Deltoids • Pectoralis Major: • Large, fan shaped muscle • Covers upper part of chest • Acts to adduct (move toward midline) and flex (decrease angle) the arms

  9. Deltoids • Pectoralis Major: • Large, fan shaped muscle • Covers upper part of chest • Acts to adduct (move toward midline) and flex (decrease angle) the arms • Intercostal muscles: • Between ribs • Deep muscle • Helps to move air in and out of the lungs • Raise ribs when inhaling, lower ribs when exhaling

  10. 1) External Obliques: • Most superficial • Helps pull chest downward, flex and rotate the trunk, and compresses the abdomen

  11. 1) External Obliques: • Most superficial • Helps pull chest downward, flex and rotate the trunk, and compresses the abdomen • 2) Rectus Abdominus: • Deep to external obliques, superficial to transverse abdominus • Straight muscle • Flexes vertebral column

  12. 1) External Obliques: • Most superficial • Helps pull chest downward, flex and rotate the trunk, and compresses the abdomen • 2) Rectus Abdominus: • Deep to external obliques, superficial to transverse abdominus • Straight muscle • Flexes vertebral column • 3) Internal Obliques: • Deep to external obliques • Runs at right angle to external obliques from middle downward laterally • Helps move spine

  13. 1) External Obliques: • Most superficial • Helps pull chest downward, flex and rotate the trunk, and compresses the abdomen • 2) Rectus Abdominus: • Deep to external obliques, superficial to transverse abdominus • Straight muscle • Flexes vertebral column • 3) Internal Obliques: • Deep to external obliques • Runs at right angle to external obliques from middle downward laterally • Helps move spine • 4) Transverse Abdominus: • Deepest abdominal muscle • Runs horizontally • Compresses the abdomen

  14. 1) External Obliques: • Most superficial • Helps pull chest downward, flex and rotate the trunk, and compresses the abdomen • 2) Rectus Abdominus: • Deep to external obliques, superficial to transverse abdominus • Straight muscle • Flexes vertebral column • 3) Internal Obliques: • Deep to external obliques • Runs at right angle to external obliques from middle downward laterally • Helps move spine • 4) Transverse Abdominus: • Deepest abdominal muscle • Runs horizontally • Compresses the abdomen 4 sets of abdominal muscles going in 4 directions to keep guts in.

More Related