major muscles of the human body
DESCRIPTION
Major Muscles of the Human Body. Muscles of the Head/Face. Frontalis – Elevates eyebrow Orbicularis oculi – Flexes eye Zygomaticus – Elevates lips Orbicularis oris – Flexes lips Masseter – Elevates mandible. Muscles of the Neck/ Shoulder/Back. - PowerPoint PPT PresentationTRANSCRIPT
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Major Muscles of the Human Body
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• Frontalis – Elevates eyebrow• Orbicularis oculi – Flexes eye• Zygomaticus – Elevates lips• Orbicularis oris – Flexes lips• Masseter – Elevates mandible
Muscles of the Head/Face
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• Sternocleidomastoid – Rotates and flexes neck• Trapezius – Elevates and depresses scapula• Deltoid – Abducts arm• Latissimus dorsi – Adducts arm• Rotator cuff (composed of 4 muscles) –
Rotates, elevates, depresses scapula– Prime Mover - Subscapularis
Muscles of the Neck/Shoulder/Back
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• Pectoralis major – Flexes and adducts arm• Pectoralis minor – Protracts scapula• Rectus abdominis – Flexes vertebral column• Obliques – Rotates vertebral column• Serratus anterior – Protracts and depresses
scapula
Muscles of the Chest/Abdomen
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• Biceps brachii – Flexes elbow• Triceps brachii – Extends elbow• Brachialis – Flexes elbow, supinates hand• Brachioradialis – Flexes elbow, pronates hand• Flexor/Extensor digitorum – Flexes and
extends digits
Muscles of the Arm
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• Gluteus maximus – Extends hip• Quadriceps (composed of 4 muscles) – Extends
knee– Prime Mover – Rectus femoris
• Hamstrings (composed of 3 muscles) – Flexes knee– Prime Mover – Rectus femoris
• Gastrocnemius – Flexes knee, plantar flexion• Tibialis Anterior – Dorsiflexion, inverts foot
Muscles of the Leg
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