Gluteus Maximus

Origin:                Ilium, Sacrum, Coccyx

Insertion:            Gluteal Tuberosity

Action:                Extend, Rotate & Abduct Thigh

Syn or Ant to:     XXXXXXXXXXXXXXXXXXXXXXX

Sartorius

"Tailor's Muscle"

Origin:           Anterior Superior Iliac Spine

Insertion:       Medial aspect of proximal tibia

Action:           Flex/rotate/abduct thigh.  Flex knee.

Syn. or Ant.   XXXXXXXXXXXXXXXXXXXXXXXXXXX

Rectus Femoris

(Quadriceps Femoris Group)

Origin:             Anterior Inferior Iliac Spine

Insertion:        Tibial Tuberosity at Patellar Ligament

Action:            Flex thigh, extend leg at the knee

Syn/Ant to:     A - Hamstrings

Vastus Lateralis

(Quadriceps Femoris Group)

Origin:            Greater Trochanter, Linea Aspera

Insertion:       Tibial Tuberosity at Patellar Ligament

Action:           Extend leg at the knee

Syn/Ant to:     A - Hamstrings

Vastus Medialis

(Quadriceps Femoris Group)

Origin:            Linea Aspera

Insertion:       Tibial Tuberosity at Patellar Ligament

Action:           Extend leg at the knee

Syn/Ant to:     A - Hamstrings

Vastus Intermedius

(Quadriceps Femoris Group)

Origin:            Anterior Femur (Sits under Rectus Fermuris)

Insertion:       Tibial Tuberosity at Patellar Ligament

Action:           Extend leg at the knee

Syn/Ant to:     A - Hamstrings

Gracilis

Origin:            XXXXXXXXXXXXXXXXXXXXXXX

Insertion:       XXXXXXXXXXXXXXXXXXXXXXX

Action:           Adduct Thigh

Syn/Ant to:     XXXXXXXXXXXXXXXXXXXXXXX

Tensor Fasciae Latae

Origin:            XXXXXXXXXXXXXXXXXXXXXXX

Insertion:       XXXXXXXXXXXXXXXXXXXXXXX

Action:           Flexes, Abducts & Medially Rotates Thigh

Syn/Ant to:     XXXXXXXXXXXXXXXXXXXXXXX

Biceps Femoris

Origin:            Ischial Tuberosity, Linea Aspera

Insertion:       Head of Fibula, Lateral Condyle of Tibia

Action:           Extend Thigh, Flex Knee (Walking, Running)

Syn/Ant to:     A - Quadriceps

Semitendinosus

Origin:            XXXXXXXXXXXXXXXXXXXXXXXXXXXX

Insertion:       XXXXXXXXXXXXXXXXXXXXXXXXXXXX

Action:           Extend Thigh, Flex Knee 

Syn/Ant to:     A - Quadriceps

Gastrocnemius

Origin:            Lateral & Medial Condyles of Femur

Insertion:       Calcaneus

Action:           Extend Knee, Plantar Flexion

Syn/Ant to:     S - Soleus

Soleus

Origin:            XXXXXXXXXXXXXXXXXXXXXXXXXXX

Insertion:       XXXXXXXXXXXXXXXXXXXXXXXXXXX

Action:           Plantar Flexion

Syn/Ant to:     S - Gastrocnemius

Tibialis Anterior

Origin:            XXXXXXXXXXXXXXXXXXXXXXXXXXX

Insertion:       XXXXXXXXXXXXXXXXXXXXXXXXXXX

Action:           Dorsiflexion & Inversion of Foot

Syn/Ant to:     A - Gastrocnemius & Solus

Diaphragm

Origin:            XXXXXXXXXXXXXXXXXXXXXXXXXXX

Insertion:       XXXXXXXXXXXXXXXXXXXXXXXXXXX

Action:           Increase Vertical Dimension of Thoracic Cavity 

Syn/Ant to:     S - External Intercostals

External Intercostals

Origin:            XXXXXXXXXXXXXXXXXXXXXXXXXXX

Insertion:       XXXXXXXXXXXXXXXXXXXXXXXXXXX

Action:           Increase Horizontal Dimension of Thoracic Cavity 

Syn/Ant to:     S - Diaphragm

Internal Intercostals

Origin:            XXXXXXXXXXXXXXXXXXXXXXXXXXX

Insertion:       XXXXXXXXXXXXXXXXXXXXXXXXXXX

Action:           Decrease Horizontal Dimension of Thoracic Cavity 

Syn/Ant to:     A - External Intercostals

Masseter

Origin:            Zygomatic Arch

Insertion:       Lateral Ramus or Mandible

Action:           Elevate Jaw 

Syn/Ant to:     A - Digastric

Digastric

Origin:            Mandible & Mastoid Process

Insertion:       Hyoid Bone

Action:           Depress Jaw 

Syn/Ant to:     A - Masseter

Orbicularis Oculi

Origin:            Frontal & Maxillary Bones

Insertion:       Tissue of Eyelid

Action:           Closes Eye

Syn/Ant to:     XXXXXXXXXXXXXXXXXXXXXXXX

Zygomaticus Major

Origin:            Zygomatic Bone

Insertion:       Skin, Muscle at Corner of Mouth

Action:           Smiling

Syn/Ant to:     A - Orbicularis

Platysma

Origin:            Fascia of Chest & Deltoid

Insertion:       Mandible, Skin & Muscle @ Corner of Mouth

Action:           Tenses Skin of Neck

Syn/Ant to:     XXXXXXXXXXXXXXXXXXXXXXXXX

Sternocleidomastoid

Origin:            Sternum, Medial Clavicle

Insertion:       Mastoid Process

Action:           Flex Head, Turn Head to Side

Syn/Ant to:     A - Trapezius to Each Other

External Oblique

Origin:            XXXXXXXXXXXXXXXXXXXXXXX

Insertion:       XXXXXXXXXXXXXXXXXXXXXXX

Action:           Rotate, Lateral Flexion of Trunk

Syn/Ant to:     XXXXXXXXXXXXXXXXXXXXXXX

Rectus Abdominis

(Sit Ups)

Origin:            Pubic Crest & Symphysis

Insertion:       Xiphoid Process & Costal Cartilages

Action:           Compress Abdomen Flex Vertebral Column

Syn/Ant to:     XXXXXXXXXXXXXXXXXXXXXXX

Trapezius

Origin:            Occipital; Spines of 7-19 Vertebrae

Insertion:       Clavicle, Scapular Spine, Acromion

Action:           Elevate/Depress Scapula, Extend Head, Adduct Scapula

Syn/Ant to:     XXXXXXXXXXXXXXXXXXXXXXX

Latissimus Dorsi

Origin:            XXXXXXXXXXXXXXXXXXXXXXXXXXXX

Insertion:       Intertubercular Groove

Action:           Adduct, Rotate & Hyperextend Arm

Syn/Ant to:     XXXXXXXXXXXXXXXXXXXXXXX

Pectoralis Major

(Swimming Muscle)

Origin:            Clavicle, Sternum, Cartilage of Ribs 2-6

Insertion:       Greater Tubercle of Humerus

Action:           Adduct & Rotate Arm

Syn/Ant to:     XXXXXXXXXXXXXXXXXXXXXXX

Serratus Anterior

(Boxer's Muscle)

Origin:            XXXXXXXXXXXXXXXXXXXXXXXXXX

Insertion:       XXXXXXXXXXXXXXXXXXXXXXXXXX

Action:           Reaching/Pushing. Hold Scapula to Chest Wall 

Syn/Ant to:     XXXXXXXXXXXXXXXXXXXXXXX

Deltoid

(Shoulder Pad)

Origin:           Clavicle, Acromion, Scapular Spine

Insertion:       Deltoid Tuberosity of Humerus

Action:           Abduct, Flex, Entend, Rotate Arm

Syn/Ant to:     XXXXXXXXXXXXXXXXXXXXXXX

Biceps Brachii

Origin:           Above Glenoid Cavity, Coracoid Process

Insertion:       Radial Tuberosity

Action:           Flex, Supinate Forearm

Syn/Ant to:     A - Triceps

Triceps Brachii

Origin:           Below Glenoid Cavity, Post.  Humerus

Insertion:       Olecranon Process

Action:           Extend Forearm

Syn/Ant to:     A - Biceps

Erector Spinae

(Important Posture Muscle)

Origin:           XXXXXXXXXXXXXXXXXXXXXXXXXX

Insertion:       XXXXXXXXXXXXXXXXXXXXXXXXXX

Action:           Extend & Bend Vertebral Column Laterally

Syn/Ant to:     A - Rectus Abdominis