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HSCI 3000-002 Week 3 notes

by: Nancy Kanarski

HSCI 3000-002 Week 3 notes HSCI

Marketplace > East Tennessee State University > HSCI > HSCI 3000 002 Week 3 notes
Nancy Kanarski
GPA 3.97

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About this Document

Muscles of the anterior and posterior forearm, their origins, insertions, and actions as covered in class on September 6th.
Human Anatomy
Class Notes
Human, anatomy, forearm, Muscles
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This 2 page Class Notes was uploaded by Nancy Kanarski on Tuesday September 6, 2016. The Class Notes belongs to HSCI at East Tennessee State University taught by Forsman in Fall 2016. Since its upload, it has received 4 views.


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Date Created: 09/06/16
Human Anatomy September 6­September 8 Anterior Forearm – flexor muscles Muscle Origin Insertion Action Brachioradialis m.  Lateral edge of  Styloid process of  Supinates forearm to  humerus radius mid­position and then flexes at elbow Pronator teres m.  Anterior medial  1/3 down posterior  Pronation of forearm epicondyle of  lateral aspect of  humerus, coronoid  radius process of ulna Flexor carpi ulnaris  Anterior medial  Base of metacarpal V Flexes at wrist along  m. epicondyle of  ulna humerus Palmaris longus m.  Anterior medial  1/3 down medial  Flexes at wrist and  epicondyle of  aspect of ulna,  tighten skin humerus connective tissue in  palm Flexor carpi radialis  Anterior medial  Base of metacarpal II Flexes at wrist along  m. epicondyle of  and III lateral side humerus Flexor digitorum  Anterior medial  Middle phalanx of  Flexes at wrist, flexes superficialis m.  epicondyle of  digits II­V on medial  digits II­V at MP,  humerus, coronoid  and lateral sides PIP, and DIP process of ulna,  medial shaft of radius Pronator quadratus  Anterior lateral shaft  Distal end of radius  Pronation of forearm m. of ulna 2/3 down shaft Flexor digitorum  Anterior shaft of ulna Distal phalanx of  Flexes at wrist, flexes profundus m.  digits II­V digits II­V at MP,  PIP, and DIP  Flexor pollicis longus Anterior shaft of  Distal phalanx of  Flexes thumb at MP  m.  radius 1/3 down thumb and IP Posterior forearm – extensor muscles Muscle Origin Insertion Action Extensor digitorum  Posterior lateral  Distal phalanx of  Extends wrist,  m. epicondyle of  digits II­V extends digits II­V at  humerus MP, PIP, DIP Extensor digiti  Posterior lateral  Distal phalanx of  Extends digit V minimi m.  epicondyle of  digit V humerus Extensor carpi  Posterior lateral  Base of metacarpal II Extends wrist (lateral  radialis longus m. epicondyle of  deviation) humerus Extensor carpi  Posterior lateral  Base of metacarpal  Extends wrist (lateral  radialis brevis m.  epicondyle of  III deviation) humerus Extensor carpi ulnaris Posterior lateral  Base of metacarpal V Extends wrist (medial m.  epicondyle of  deviation) humerus Supinator m. Posterior lateral  Anterior 1/3 shaft of  Supinates forearm epicondyle of  radius humerus, proximal  shaft of ulna Abductor pollicis  Below supinator m.,  Lateral side base of  Abducts thumb longus m. lateral side of ulna  metacarpal I and medial radius Extensor pollicis  Posterior shaft ulna,  Distal phalanx of  Extends thumb at MP longus m. lateral side thumb and IP Extensor pollicis  2/3 down radius on  Proximal phalanx of  Extends thumb at MP brevis m. medial side thumb Extensor indicis m. Distal end of ulna Distal phalanx of  Extends index finger  digit II at MP, PIP, and DIP


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