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46 Cards in this Set
- Front
- Back
Frontalis |
Origin: Aponeuroses of the skull Insertion: skin of the eyebrows and nose Function: Raises eyebrows. Wrinkles forehead. |
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Orbicularis oculi |
Origin: Near the maxilary and frontal bones Insertion: Skin around eye Function: Open and close eyes. Winking, blinking, squinting. |
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Zygomaticus |
Origin: Zygomatic bone Insertion: Orbicularis oris Function: Raises corners of mouth - "smiling muscle" |
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Masseter |
Origin: Lower border of zygomatic bone Insertion: Lateral surface of the mandible Function: Closes jaw, used in biting and chewing |
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Orbicularis oris |
Origin: Muscles near the mouth Insertion: Skin of lips Function: Closes mouth and portrudes lips - "kissing muscles" |
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Platysma |
Origin: Upper chest Insertion: Lower border of the mandible Function: Draw angle of mouth downward |
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Temporalis |
Origin: Temporal bone Insertion: Coronoid process and lateral surface of the mandible Function: Closes jaw. Acts as synergist to massetar |
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Sternocleidomastoid |
Origin: Anterior surfaces of the sternum and upper surface of the clavicle Insertion: Mastoid process of the temporal bone |
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Buccinator |
Origin: Cheekbones Insertion: orbicularis oris Function: Compresses the check to hold food. Flattens the cheek. "Chewing muscle" |
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Trapezius |
Origin: Occipital bone and spines of cervical and thoracic vertebrae Insertion: Clavicle; spine and acromion process of scapula Function: Rotates scapula; pulls scapula and shoulder downward |
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Serratus anterior |
Origin: Outer surface of upper ribs Insertion: Ventral surface of scapula Function: Pulls scapula anteriorly and downward |
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Deltoid |
Origin: Acromion process of spine of scapula and clavicle Insertion: Deltoid tuberosity of humerus Function: Extends or flexes humerus |
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Infraspinatus
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Origin: Posterior surface of scapula Insertion: Greater tubercle of humerus Function: Rotates are laterally |
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Pectoralis major |
Origin: Clavicle, sternum, and costal cartiages of upper ribs Insertion: Intertubercular groove of humerus Function: Pulls arm forward, across chest, adducts arm |
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Petoralis minor |
Origin: Sternal ends of upper ribs Insertion: Coranoid process of scapula. Function: Pulls scapula downward or raises ribs |
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Biceps brachii |
Origin: Coracoid process of scapula Insertion: Radial tuberosity of radius Function: Flexes forearm at elbow and rotates hand laterally |
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Triceps brachii |
Origin: Lateral and medial surfaces of humerus Insertion: Olecranon process of ulna Function: Extends forearm at the elbow |
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Supraspinatus |
Origin: Posterior surface of scapula Insertion: Greater tubercle of humerus Function: Abducts arm |
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Brachialis |
Origin: Anterior shaft of humerus Insertion: Coronoid process of ulna Function: Flexes forearm at the elbow |
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Brachioradialis |
Origin: Distal, lateral end of humerus Insertion: Lateral surface of radius above the styloid process Function: Flexes forearm at the elbow |
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Supinator |
Origin: Lateral epicondyle of humerus and crest of ulna Insertion: Lateral surface of radius Function: Rotates forearm laterally |
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Pronator teres
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Origin: Medial epicondyle of humerus and coronoid process of ulna Insertion: Lateral surface of radius Function: Rotates forearm medially |
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Flexor carpi radialis
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Origin: Medial epicondyle of humerus Insertion: Base of 2nd and 3rd metacarpals Function: Flexes and abducts wrist |
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Extensor carpi radialis |
Origin: Distal end of humerus Insertion: Base of 2nd metacarpal Function: Extends wrist and abducts hand |
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Rectus abdominis |
Origin: Pubic bone and the pubic symphysis Insertion: Costal cartilage of 5-7 ribs; xiphoid process Function: Flexes vertebral column and compresses abdominal contents |
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External Oblique
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Origin: External surfaces of ribs 5-12 Insertion: Iliac crest in the pelvic girdle Function: Flexes vertebral column and rotate trunk and bend laterally |
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Latisimus dorsi |
Origin: Lower spine and iliac crest Insertion: Proximal end of the humerus Function: Extends and abducts the humerus. Very important in the power stroke, "swimmers muscle" |
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Internal oblique |
Origin: Iliac crest Insertion: Costal cartilage of the 8-12 ribs Function: Flex vertebral coluimn and rotate trunk, and bend it laterally |
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Transverse |
Origin: Lower ribs and iliac crest Insertion: Pubis bone Function: Compress ribs |
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Psoas Major (Illiopsoas) |
Origin: Lumbar intervertebral discs, bodies and transverse processes of lumbar vertebrae Insertion: Femur (lesser trochanter) Function: Flexes thigh; keeps body from falling backwards |
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Sartorius |
Origin: Ilium and iliac crest Insertion: Medial surface of tibia Function: Flexes leg and thigh, abducts thigh, rotates thigh laterally, rotates leg medially. "Tailors muscle" |
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Rectus femoris* |
Origin: Spine of ilium and margin of acetabulum Insertion: Patella by the tendon, which continues as patellar ligament to tibial tuberosity Function: Extends leg at knee |
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Vastus lateralis*
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Origin: Greater trochanter of femur Insertion: Patella by the tendon, which continues as patellar ligament to tibil tuberosity Function: Extends leg at knee |
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Vastus medialis* |
Origin: Medial surface of femur Insertion: Patella by the tendon, which continues as patellar ligament to tibil tuberosity Function: Extends leg at knee |
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Tensor fasciae latae |
Origin: Anterior of iliac crest Insertion: Fascia of thigh Function: Abducts, flexes, and rotates thigh medially |
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Adductor longus |
Origin: Pubic bone near symphysis pubis Insertion: Proximal end of femur Function: Abducts, flexes, and rotates thigh laterally |
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Biceps femoris*
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Origin: Ischial tuberosity and posterior surface of femur Insertion: Head of fibula and lateral condyle of tibia Function: Flexes leg |
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Semitendinosus*
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Origin: Ischial tuberosity Insertion: Medial surface of tibia Function: Flexes leg |
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Semimembranosus*
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Origin: Ischial tuberosity Insertion: Medial condyle of tibia Function: Flexes leg |
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Gracillis
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Origin: Lower edge of symphysis pubis Insertion: Medial surface of tibia Function: Abducts thigh |
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Gluteus Maximus
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Origin: Sacrum and ilium Insertion: Proximal end of femur Function: Responsible for movement of hip and thigh, rising from sitting position and climbing stairs. Strongest muscle. |
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Gluteus medius |
Origin: Ilium Insertion: Proximal end of femur Function: Abducts thigh; steadies hip during walking; medial and lateral rotation at hip |
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Tibialis Anterior |
Origin: Proximal tibia; lateral surface of tibia Insertion: Tarsal bones and first metatarsal Function: Dorsiflexion and inversion of foot |
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Soleus |
Origin: Proximal surface of tibia and fibula Insertion: Posterior surface of calcaneous tendon Function: Plantar flexion of foot |
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Extensor digitorum longus |
Origin: Proximal surface of tibia and anterior surface of fibula Insertion: Distal toes 2-5 Function: Extends toes and dorsiflexion of foot |
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Gastrocnemius "toe-dancers" |
Origin: Lateral, distal end of femur Insertion: Calcaneous tendon - posterior surface Function: Plantar flexion of foot and flexion of leg at the knee |