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Pectoralis Minor
- Origin: Ribs 3-5
- Insertion: Coracoid Process of scapula
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Trapezius
- Origin: Occipital bone; ligamentum nuchae; spinous process of c7-t12
- Insertion: Clavicle; acromion process and spine of scapula
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Latissimus Dorsi
(Action only)
Extends arm
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Pectoralis Major (3)
- Origin: Medial clavicle; costal cartilages of ribs 2-6; body of sternum
- Insertion: Lateral part of intertubercular groove of Humerus
- Action: Flexes Arm
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Deltoid (3)
- Origin: Acromial end of clavicle; acromion and spine of scapula
- Insertion: Deltoid tuberosity of humerus
- Action: Abducts the arm
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Triceps Brachii (3/3)
- Origin: Long Head- Infraglenoid tubercle of scapula Lateral Head- Posterior humerus above radial groove Medial Head- Posterior humerus below radial groove
- Insertion: Olcranon of Ulna
- Action: Extends forearm
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Supraspinatus (2)
- Origin: Supraspinous fossa of scapula
- Insertion: Greater tubercle of humerus
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Infraspinatus (2)
- Origin: Infraspinous fossa of scapula
- Insertion: Greater tubercle of humerus
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Teres Minor
- Origin: Upper dorsal lateral border of scapula(Superior to teres major)
- Insertion: Greater Tubercle of humerus
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Biceps Brachii (2/2)
- Origin: Long head- Supraglenoid tubercle of scapula Short head- Coracoid process of scapula
- Insertion: Radial tuberosity and bicipital aponeruosis
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Brachialis Action
Flexes forearm
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Brachioradialis (2)
- Origin: Lateral supracondylar ridge of humerus
- Insertion: Styloid process of radius
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Action of Flexor Carpi Ulnaris
Flexes wrist
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Action of Extensor Digitorum
Extends fingers
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Psoas Major (2)
- Origin: Transverse process and bodies of t12-l5 vertebra
- Insertion: Lesser trochanter of femur with iliacus
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Iliacus (2)
- Origin: Iliac Fossa
- Insertion: Lesser trochanter of femur with psoas major
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Sartorius
- Origin: Anterior superior iliac spine
- Insertion: Tibial tiberosity, medial side
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Rectus Femoris (2)
- Origin: Anterior inferior iliac spine
- Insertion: Quadriceps tendon to patella and then patellar ligament to tibial tuberosity
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Adductor Longus (2)
- Origin: Pubis near pubic symphysis
- Insertion: Linea aspera of femur
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Gracilis (2)
- Origin: Inferior ramus and body of pubis
- Insertion: Upper medial surface of tibia
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Tensor Fasciae Latae (2)
- Origin: Iliac crest and lateral surface of anterior superior iliac spine
- Insertion: Illiotibial band
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Gluteus Maximus (3)
- Origin: Iliac crest, sacrum, coccyx
- Insertion: Illiotibial tract of fascia lata; linea aspera and gluteal tuberosity of femur
- Action: Extends the thigh
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Gluteus Medius (3)
- Origin: Posterior iliac crest; lateral surface between posterior and anterior gluteal lines
- Insertion: Greater trochanter of femur
- Action: Abducts the thigh
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Biceps Femoris (2)
- Origin: Long head- Ischial tuberosity Short head- Linea aspera of femur
- Insertion: Head of fibula
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Semimembranosus (2)
- Origin: Ischial tuberosity
- Insertion: Posterior surface of medial condyle of tibia
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Semitendinosus (2)
- Origin: Ischial Tuberosity
- Insertion: Proximal medial surface of tibia
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Rectus Femoris (2)
- Origin: Anterior inferior iliac spine
- Insertion: Quadriceps tendon to patella and then patellar ligament to tibial tuberosity
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Vastus Lateralis (2)
- Origin: Greater trochanter and linea aspera
- Insertion: Quadriceps tendon to patella and then patellar ligament to tibial tuberosity
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Vastus Medialis (2)
- Origin: Intertrochanteric line and linea aspera of femur
- Insertion: Quadriceps tendon to patella and then to patellar ligament to tibial tuberosity
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Anterior Tibialis (3)
- Origin: Lateral condyle and proximal shaft of tibia; interosseous membrane
- Insertion: Metatarsal 1 and first (medial) cuneiform
- Action: Dorsiflexion
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Action of Orbicularis Oculi
Closes eyes
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Action of Orbicularis oris
Purses lips
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Action of Zygomaticus Major
Elevates corner of mouth
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Action of Masseter
Closes jaw
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Action of external intercostals
Elevates Ribs
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Action of internal intercostals
Depresses ribs
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Action of Splenius capitis
Extends the neck
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Action of Iliopsoas
Flexes thigh
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Action of Quadriceps femoris group
Extends leg (knee)
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Action of Hamstring group
Flexes the leg (knee)
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