Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Muscles
Identification
| Muscle Name | Origin, Insertions and Action |
|---|---|
| Orbicularis Oculi | Origin- Frontal & Maxillary Bone Insertions- Eyelid Tissue Action- Blinking &Squinting |
| Orbicularis Oris | Origin- Maxilla and Mandible Insertions- Muscles and skin at angles of mouth Action- Close lips, kissing, and whistling |
| Zygomaticus | Origin- Zygomatic Bone Insertions- Muscles and skin at mouth corners Action- Smiling and Laughing |
| Buccinator | Origin- Maxilla and Mandible Insertions- Orbicularis Oris Action- compress cheek, sucking |
| Platysma | Origin- Fascia of the chest Insertions- Mandible and skin/muscle of Mouth Action- Depress mandible/tenses skin off neck during shaving |
| Masseter | Origin- Zygotmatic Bone and maxilla Insertions- Mandible Action- Close jaw and elevates mandible |
| Temporalis | Origin- Temporal Bone Insertions- Mandible Action- Closes jaw and elevates/retracts Mandible |
| Sternocleidomastoid | Origin- Sternum and Clavicle Insertions- Temporal and Occipital Action- Rotate head toward opposite shoulder and neck flexion when both muscle contract |
| Pectoralis Major | Origin- Sternum, clavicle, ribs, External Oblique muscle Insertions- humerus Action- Arm Flexion and forced inspiration |
| Pectoralis Minor | Origin- Ribs Insertion- Scapula Action- Pulls scapula forward and inferior |
| Serratus Anterior | Origin- Ribs Insertions- Scapula Action- abduction and raising of arm |
| Deltoid | Origin- Clavicle and Scapula Insertions- Humerus Action- Abduction of Humerus |
| External Intercostals | Origin- Ribs (Inferior Border) Insertions- Ribs (Superior Border) Action- Elevates ribs - aids in inspiration |
| Internal Intercostals | Origin- Ribs (superior border) Insertions- Ribs (Inferior Border) Action- Lowers Ribs - aids in forced expiration |
| Rectus Abdominus | Origin- Pubic Bone Insertions- Sternum - xiphoid groves and ribs Action- Fleves and rotates vertebral column |
| External Oblique | Origin- Ribs Insertions- Linea alba, pubic crest and ilium Action- Flexes and rotates vertebral column |
| Latissimus Dorsi | Origin- Thoracic and Lumbar Vertebrae, Ribs and Ilium Insertion- Humerus Action- Arm extension, adduction, and medial rotation of arm |
| Trapezius | Origin- Occipital Bone, cervical and thoracic vertebrae Insertions- Scapula and Clavicle Action- Extends head, Shrug shoulders |
| Coracobrachialis | Origin- Scapula Insertions- Humerus Action- Flexes and Abducts Humerus |
| Biceps Brachii | Origin- Scapula Insertions- Radius - radial tuberosity Action- Flexes elbow joint, anatgonist of forearm extension |
| Brachialis | Origin- Humerus Insertions- Ulna Action- Flexes elbow joint |
| Brachioradialis | Origin- Humerus Insertions- Radius - styloid process Action- Flexes elbow joint |
| Triceps Brachii | Origin- Scapula and Humerus Insertions- Ulna - olecranon Process Action- Extension at elbow joint, antagonist of forearm flexion |
| Supinator | Origin- Humerus and ulna Insertion- Radius Action- Supinate forearm |
| Pronator Teres | Origin- Humerus and ulna Insertions- Radius Action- pronates forearm |
| Sartorius | Origin- Ilium - iliac spine Insertions- Tibia Action- Flex, abduct, and laterally rotate thigh. Helps with cross-legged position |
| Rectus Femoris | Origin- Ilium - iliac spine and Acetabulum Insertions- Patella and tibia-tibial tuberosity Action- extends knee |
| Vastus Lateralis | Origin- femur Insertions- Patella and Tibia-Tibial tuberosity Actions- Extends knees |
| Vastus Medialis | Origin- femur Insertions- Patella and Tibia-Tibial tuberosity Actions- Extends knees |
| Vastus intermedius | Origin- femur Insertions- Patella and Tibia-Tibial tuberosity Actions- Extends knees |
| Tensor Fasciae Latae | Origin- Ilium-crest and Spine Insertions- Tibia Action- Flexes, abducts, and medially rotates thigh |
| Gluteus Maximus | Origin- Ilium, sacrum, coccyx Insertions- Femur Action- Extends thigh (climbing stairs) |
| Gluteus Medius | Origin- Ilium Insertions- Femur- greater trochanter Action- Abducts and medially rotates thigh (important walking) |
| Biceps Femoris | Origin Femur and ischium Insertions- Tibia and fibula Action- Extends thighs and flexes knees |
| Semitendinosous | Origin- Ischium - ischial tuberosity Insertions- Tibia Action- Extends thighs and flexes knees |
| Semimembranosus | Origin- Ischium - ischial tuberosity Insertions- femur and tibia Action- extends thighs and flexes knees |
| Tibialis Anterior | Origin- tibia Insertions- tarsal and metatarsal Action- Dorsiflexion |
| Gastrocnemius | Origin- Femur Insertions- Calcaneus Action Plantar Flexion |
| Soleus | Origin- Tibia and fibula Insertions- Calcaneus Action Plantar Flexion |
Created by:
Nouran_1218