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Gross Anatomy Head, Neck, Trunk, & Upper Limb

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Presentation on theme: "Gross Anatomy Head, Neck, Trunk, & Upper Limb"— Presentation transcript:

1 Gross Anatomy Head, Neck, Trunk, & Upper Limb
Human Anatomy and Physiology

2 Gross Anatomy

3 Gross Anatomy

4 Gross Anatomy Head Muscles Facial Muscles:
Frontalis – allows you to raise eyebrows and wrinkle forehead Orbicularis Oculi – circles around eyes Orbicularis Oris – kissing muscles Zygomaticus – smiling Chewing Muscles: Masseter: closes jaw by elevating mandible Temporalis – acts as a synergist of the masseter closing the jaw

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6 Gross Anatomy Trunk and Neck Muscles Anterior Muscles
Platysma: pulls corner of mouth inferiorly Sternocleidomastoid: flexes neck, rotated head Pectoralis major: adducts and flexes humerus Intercostal muscle: deep muscles found between the ribs Rectus Abdominis: flexes vertebral column External Oblique: flexes and rotates vertebral column

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9 Gross Anatomy Trunk and Neck Muscles Posterior Muscles
Trapezius: extends neck and adducts scapula Latissimus dorsi: extends and adducts humerus Deltoid: abducts humerus

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11 Gross Anatomy Muscles of the Upper Limb
Muscles that Move the Upper Limb Pectoralis Major: adducts and flexes humerus Lattisiumus Dorsi: extends and adducts humerus Deltoid: abducts humerus Muscles that Act on the Forearm Biceps Brachii: flexes elbow and supinates forearm Triceps Brachii: extends elbow

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