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

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

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

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