Action Orgin And Insertion Of Muscles Flashcards
Occipitofrontalis frontal belly (action)
Raises eyebrows
Orbicularis Oculi (Action)
Closes eyelid
Orbicularis Oris (action)
Closes/Protudes Lips
Orbicularis Oris (Origin)
Maxillary/Mandible
Orbicularis Oris (insertion)
Lips
Zygomaticus Major (Action)
Raises Lateral side of mouth to smile
Mentalis (Action)
Wrinkles skin on chin, protrudes lower lip
Masseter (Action)
Close mandible
Temporalis (Action)
Close jaw and elevates mandible
Sternocleidomastoid (Action)
Flexion and lateral flexion of neck and rotation of neck
Sternohyoid (Action)
Depresses Larynx and hyoid bone
Sternohyoid (Origin)
Manbrium
Sternohyoid (Insertion)
Hyoid bone
External intercostals (Action)
Elevates ribs during normal inspiration
Internal intercostals (Action)
Depresses the ribs during forced expiration
Diaphragm (Action)
Compresses abdomen, expands the thoracic cavity
Rectus Abdominis (Action)
Flexion of Vertebral Column
Rectus Abdominis (Origin)
Pubic Crest
Rectus Abdominis (Insertion)
Xiphoid Process
Transverse Abdominis (Action)
Increase intrabdominal pressure during expiration
Erector spinae muscle group (Action)
Extension of vertebral column and head
Pectoralis minor (Action)
Depression inferior rotation of scapula
Pectoralis minor (Origin)
External surfaces ribs 3-5
Pectoralis minor (Insertion)
Coracoid Process
Latissimus Dorsi (Action)
Arm Movement
Latissimus Dorsi (Origin)
Spinous process of vertebrae, T6-T12, Thoracolumbar Fascia, Iliac Crest, Inferior 3 Ribs
Latissimus Dorsi (insertion)
Intertubular Groove of humerus
Infraspinatus (Action)
Lateral Rotation of the arm
Biceps Brachii Long and Short Heads (Action)
Flexion of the Arm, Flexion and Supination of the Forearm
Brachialis (Action)
Flexion of Forearm
Brachialis (Origin)
Anterior Surface of the Humerus
Brachialis (Insertion)
Coracoid Process of the Ulna
Triceps Brachii Long Head (Action)
Extension of the Forearm (extends and abducts arm)
Triceps Brachii Lateral Head (Action)
Extension of the Forearm