Muscular System

Origin / Insertion / Action

Orbicularis Oculi [Origin]

Orbicularis Oculi [Origin]

Maxilla & Frontal Bones

Orbicularis Oculi [Insertion]

Circles orbit & inserts near the origin

Orbicularis Oculi [Action]

Closes Eyes

Orbicularis Oris [Origin]

Nasal Septum, Maxilla, Mandible

Orbicularis Oris [Insertion]

Fascia & Other Lip Muscles

Orbicularis Oris [Action]

Closes Mouth

Zygomaticus Major / Minor [Origin]

Zygomatic Bone

Zygomaticus Major / Minor [Insertion]

Angle of Mouth & Orbicularis Oris

Zygomaticus Major / Minor [Action]

Smiling

Temporalis [Origin]

Temporal Bone

Temporalis [Insertion]

Mandible

Temporalis [Action]

Chewing, Elevating & Retracting Mandible

Masseter [Origin]

Zygomatic Arch

Masseter [Insertion]

Mandible (Lateral Side)

Masseter [Action]

Chewing, Elevating & Protacting Mandible

Sternocleidomastoid [Origin]

Sternum (Manubrium) & Clavicle

Sternocleidomastoid [Insertion]

Mastoid Process Of The Temporal Bone

Sternocleidomastoid [Action]

Lateral flexion of head & neck

Trapezius [Origin]

Occipital Protuberance, Vertebrae (C7-12)

Trapezius [Insertion]

Clavicle & Scapula

Trapezius [Action]

Extends & Laterally Flexes Head & Neck

Latissimus Dorsi [Origin]

Vertebrae (T7-L5), Sacrum, Iliac Crest

Latissimus Dorsi [Insertion]

Humerus

Latissimus Dorsi [Action]

Adducts & Rotates Arm, Extends Shoulder

Pectoralis Major [Origin]

Clavicle & Sacrum

Pectoralis Major [Insertion]

Humerus

Pectoralis Major [Action]

Adducts & Rotates Arm, Flexes Shoulders

Biceps Brachii [Origin]

Scapula

Biceps Brachii [Insertion]

Radius

Biceps Brachii [Action]

Flexes Shoulder & Elbow ; supination of hand

Triceps Brachii [Origin]

Scapula & Humerus

Triceps Brachii [Insertion]

Ulna

Triceps Brachii [Action]

Extends Elbow & Shoulder, Adducts Arm

Gluteus Maximus [Origin]

Illium, Sacrum, Coccyx

Gluteus Maximus [Insertion]

Femur

Gluteus Maximus [Action]

Extends Hip, Adducts Thighs

Sartorius [Origin]

Iliac Spine

Sartorius [Insertion]

Tibia

Sartorius [Action]

Flexes Knee & Hips, Adducts Thighs

Biceps Femoris [Origin]

Ischium & Femur

Biceps Femoris [Insertion]

Fibula Head

Biceps Femoris [Action]

Flexes Knees, Extends Hip, Lateral Rotation of Leg