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Muscle Anatomy of the Neck, face & Arm

Muscle Anatomy of the Neck, face & Arm. BY: CHANTAL COTE & KAITLYN RUTIGLIANO. Neck & Face Muscles. Masseter Sternocleidomastoid Buccinators. Masseter. Origin : Lower border of zygomatic arch Insertion : Lateral surface of mandible Motion : Elevates mandible Uses : Chewing & Talking

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Muscle Anatomy of the Neck, face & Arm

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  1. Muscle Anatomy of the Neck, face & Arm BY: CHANTAL COTE & KAITLYN RUTIGLIANO

  2. Neck & Face Muscles • Masseter • Sternocleidomastoid • Buccinators

  3. Masseter • Origin: Lower border of zygomatic arch • Insertion: Lateral surface of mandible • Motion: Elevates mandible • Uses: Chewing & Talking • Body Location: In the cheek of the face

  4. Masseter Muscle

  5. Sternocleidomastoid • Origin: Anterior surface of sternum and upper surface of clavicle • Insertion: Mastoid process of temporal bone • Motion: Pulls head to one side, flexes neck or elevates sternum • Uses: Praying & looking up and down • Body Location: Neck

  6. Sternocleidomastoid Muscle

  7. Buccinators • Origin: Outer surfaces of maxilla and mandible • Insertion: Orbicularis oris • Motion: Compresses cheeks inward as when blowing air • Uses: Whistling, blowing bubbles, & drinking from a straw • Body Location: Cheek of face in front of masseter

  8. Buccinator Muscle

  9. Arm Muscles • Biceps brachii • Triceps brachii • Brachioradialis

  10. Biceps Brachii • Origin: Coracoid proccess and tubercle above glenoid cavity of scapula • Insertion: Radial tuberosity of radius • Motion: Flexes forearm at elbow and rotates hand laterally • Uses: Biceps curls & lifting back-pack • Body Location: Anterior side of upper arm

  11. Biceps Brachii

  12. Triceps Brachii • Origin: Tubercle below glenoid cavity and lateral and medial surfaces of humerus • Insertion: Olecranon process of ulna • Motion: Extends forearm at elbow • Uses: Dips (exercise) & crab walk • Body Location: Posterior side of upper arm

  13. Triceps Brachii

  14. Brachioradialis • Origin: Distal lateral end of humerus • Insertion: Lateral surface of radius above styloid process • Motion: Flexes forearm at elbow • Uses: Eat & brush hair • Body Location: Anterior side of forearm (lower arm)

  15. Brachioradialis

  16. THE END!

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