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50 Cards in this Set
- Front
- Back
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Sternocleidomastoid
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Action: Contraction of muscles that cause the flexion of the neck forward. Rotates and extends head toward shoulder on opposite side
Origin: Manubrium of strenum and clavicle Insertion: Mastoid process of temporal bone |
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Pectoralis Major
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Action: Prime mover of arm flexion; adducts, medially rotates
Origin: Clavicle, sternum Insertion: Humerus |
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Serratus Anterior
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Action: Rib elevation protracts and rotates scapula
Origin: Ribs 1-8 Insertion: Scapula |
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Deltoid
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Action: Prime move of arm abduction; when only specific fibers are active, can aid in flexion
Origin: Clavicle; acromion and spine of scapula Insertion: Deltoid tuberosity of humerus |
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Pectoralis Minor
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Action: With ribs fixed, draws scapula forward
Origin: Ribs 3-5 Insertion: Coracoid process of scapula |
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External Intercostals
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Action: Pulls ribs toward one another to elevate rib cage
Origin: Inferior border of rib above Insertion: Superior border of rib |
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Internal Intercostals
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Action: Aids in forced expiration
Origin: Superior border of rib Insertion: Inferior border of rib |
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Diaphragm
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Action: Prime mover of inspiration flattens on contraction
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Rectus Abdominis
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Action: Flexes and rotates vertebral column; abdominal compression
Origin: Pubic crest and symphysis Insertion: Xiphoid process of costal cartillages of ribs |
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External Oblique
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Action: aids in muscles of back in trunk rotation and lateral flexion
Origin: Last eight ribs Insertion: Linea alba, pubic crest and iliac crest |
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Internal Oblique
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Action: same for external oblique
Origin: Luimbar fascia, iliac crest and inguinal ligament Insertion: Linea alba, pubic crest, and costal cartilages or last three ribs |
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Transversus Abdominis
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Action: compresses abdominal contents
Origin: Inguinal ligament, iliac crest, cartilages of last five or six ribs Insertion: Linea alba and pubic crest |
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Trapezius
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Action: Extends head; superior fibers elevate scapula
Origin: occipital bone; vertebrae Insertion: Acromion and spinous process of scapula |
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Latissimus dorsi
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Action: Prime mover of arm extension; adducts and medially rotates arm
Origin: Lower vertebrae, last three to four ribs, and ilic crest Insertion: Humerus |
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Infraspinatus
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Action: Lateral rotation of humerus
Origin: Infraspinous fossa of scapula Insertion: Greater tubercle of humerus |
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Teres minor
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Action: Lateral rotation of humerus
Origin: Scapula Insertion: Greater tubercle of humerus |
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Tres Major
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Action: Extends and adducts humerus
Origin: Scapula Insertion: Humerus |
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Subscapularis
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Action: Adduction and flexion of humerus
Origin: Scapula Insertion: Humerus |
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Subraspinatus
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Action: Asuction of humerus
Origin: Supraspinous fossa of scapula Insertion: Greater tubercle of humerus |
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Levator Scapulae
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Action: Elevates and assucts scapuls
Origin: Transverse proicess of C1-C4 Insertion: Medial border of scapula |
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Rhombouids Major and Minor
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Action: Pulls scapula medially (retraction); scapula elevation
Origin: Spinous process of vertebrae insertion: Medial border of scapula |
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Erector Spinae
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Action: Extend the vertebral column
Origin: Ilium & vertebrae Insertion: Ribs & vertebrae |
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Triceps Brachii
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Action: Forearm extensor
Origin: all heads originate at the humerus Insertion: olecranon process of ulna |
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Biceps brachii
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Action: Flexion and supination of forearm
Origin: Coracoid process and glenoid fossa of scapula insertion: Radial tuberosity |
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Brachioradialis
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Action: Forearm flexion
Origin: Humerus Insertion: Styloid process of radius |
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Brachialis
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Action: Flexor of forearm
Origin: Humerus Insertion: Coronoid process of ulna |
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Coracobrachialis
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Action: Flexion and adduction of humerus
Origin: Coracoid process of scapula Insertion: Humerus |
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Protator teres
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Action: Pronate forearm
Origin: Medial epicodyle of humerus and coronoid process of ulna Insertion: Midshaft of radius |
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Supinator
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Action: Supinate forearm
Origin: Lateral epicondyle of humerus; ulna Insertion: Proximal end of radius |
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Illiopsoas
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Action: Flex thigh; letral flexion of vertebral column
Origin: Illiacus Insertion: Lesser trochanter of femur |
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Sartorius
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Action: Flexes thigh; flexes knee
Origin: Anterior superior iliac spine Insertion: Proximal tibia |
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Adductors - magnus, longus, and brevis
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Action: adduct and medially rotate and flex thigh; posterior part of magnus is also a synergist in thigh extention
Insertion: Femur |
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Gracilis
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Action: Adducts thigh
Origin: Pubis Insertion: Tibia |
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Vastus Lateralis
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Action: extends knee
Origin: Greater trochanter of femur Insertion: Tibial tuberosity and patella |
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Vastus medialis
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Action: Extends Knee
Origin:Femur Insertion: Tibial tuberosity of patella |
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Vastus intermedius
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Action: Extends knee
Origin: Femur Insertion: Tibial tuberosity of patella |
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Tensor fasciae latae
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Action: flexes, aducts, and medially roates thigh
Origin: iliac crest and iliac spine Insertion: Iliotibal trace |
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Gluteus maximus
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Action: Thigh extensor, laterall rotates thight
Origin: Illium, sacrum, and coccyx Insertion: Femur and iliotibal |
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Gluteus medius
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Action: Abducts and medially rotates thigh
Origin: Illium Insertion: Greater trochanter of femur |
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Priformis
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Action: Lateral thigh rotation
Origin: Sacrum Insertion: Femur |
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Biceps femoris
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Action: extends thigh; flexs knee
Origin: Ischial tuberosity femur Insertion: Fibula |
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Semitendinosus
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Action: Extends thigh; flexes knee
Origin: Ischial tuberosity Insertion: Tibia & Fibula |
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Semimembranosus
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Action: Extends thigh; flexes knee
Origin: Ischial Tuberosity Insertion: Tibia & Femur |
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Fibularis
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Action: plantar flexes foot
Origin: Head of fibula Insertion: Tarsal, metatarsal |
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Tibialis Anterior
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Action: prime mover of dorsiflexion; inverts foot; toe extension
Origin: Lateral condyle of tibia Insertion: Tarsal, metatarsal |
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Extensior Digitorum
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Action: Prime move of the toe extensions; dorsiflexes foot, foot eversion
Origin: Lateral condyle of tibia, proximal fibula Insertion: Middle and distal pohalanges of toes |
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Gastrocnemius
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Action: Plantar flexes foot, flexes kene
Origin: Medial and lateral condyles and femur Insertion: calcaneus |
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Soleus
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Action: Plantar flexion
Origin: Proximal protion of tibia and fibula Insertion: Calcaenus |
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Tibialis posterior
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Action: prime mover of foot eversion; plantar flexes foot
Origin: Superior portion of tibia and fibula Insertion: Tarsals and metatarals |
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Flexor digitorum longus
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Action: Flexes toes; plantar flexes and inverts foot
Origin: Posterior surface of tibia Insertion: Distal phalanges of toes |
