Items tagged “muscle”

43 results found
Article

Latissimus dorsi

Latissimus dorsi is one of the muscles that attaches the upper limb to the vertebral column. Summary origin ​spinous processes of T7-T12 and thoracolumbar fascia posterior third of the iliac crest 9th-12th ribs inferior angle of the scapula insertion: floor of the bicipital groove of the ...
Article

Levator scapulae

Levator scapulae is a muscle of the upper limb that connects the pectoral girdle to the cervical spine. Summary origin: C1-C4 transverse processes insertion: superior angle of the scapula innervation: direct branches from the C3-4 spinal nerves, and the dorsal scapular nerve (C5) arterial s...
Article

Serratus anterior

Serratus anterior arises from the anterolateral chest wall as eight interdigitations of muscle that run posteriorly around the chest wall, under the scapula to insert onto the medial scapula. It is considered one of the four muscles of the pectoral region, Summary origin: anterolateral ribs 1-...
Article

Subclavius muscle

The subclavius muscle is a small triangular muscle of the pectoral region which depresses the shoulder. Summary origin: 1st costochondral joint insertion: subclavian groove on the inferior aspect of the clavicle innervation: nerve to subclavius arterial supply: clavicular branch of the thor...
Article

Flexor carpi ulnaris

Flexor carpi ulnaris (FCU) is a muscle of the first layer of the anterior compartment of the forearm. It is one of the extrinsic muscles of the hand. Summary origin humeral head: medial epicondyle of the humerus ulnar head: medial border of olecranon and posterior border of ulna insertion: ...
Article

Flexor digitorum superficialis

Flexor digitorum superficialis (FDS), also known as flexor digitorum sublimis, is a muscle in the second (intermediate) layer of the anterior compartment of the forearm. It splits into four tendons, passes through the carpal tunnel under the flexor retinaculum, and inserts into the base of the m...
Article

Flexor digitorum profundus

Flexor digitorum profundus (FDP) makes up the third layer of the anterior compartment of the forearm along with flexor pollicis longus. It passes through the carpal tunnel. It is one of the extrinsic muscles of the hand. Summary origin: proximal, anterior surface of ulna and adjacent interosse...
Article

Flexor pollicis longus

Flexor pollicis longus (FPL) is one of the two muscles that make up the third layer of the anterior compartment of the forearm along with the flexor digitorum profundus. It is a deep muscle under abductor pollicis brevis muscle. It passes through the carpal tunnel. It is one of the extrinsic mus...
Article

Pronator quadratus

Pronator quadratus is the most distal muscle that makes up the deepest layer of the anterior compartment of the forearm. It is one of the extrinsic muscles of the hand. Summary origin: anterior surface of distal quarter of ulnar shaft insertion: anterior surface of distal quarter of radial sh...
Article

Posterior compartment of the forearm

The forearm is divided into the posterior compartment and the anterior compartment by the deep fascia, lateral intermuscular septum and the interosseous membrane between the ulna and radius.  Muscles The posterior compartment of the forearm contains 11 muscles, divided into deep and superficia...
Case

Subtle gluteal atrophy

 Diagnosis probable
Dr Jeremy Jones
Published 15 Jul 2013
56% complete
MRI
Case

Rhabdomyosarcoma (thumb)

 Diagnosis certain
Dr Jeremy Jones
Published 15 Jul 2013
83% complete
MRI
Case

Infantile fibrosarcoma

 Diagnosis certain
Dr Jeremy Jones
Published 15 Jul 2013
83% complete
MRI
Case

Partial extensor forearm atrophy

 Diagnosis probable
Dr Jeremy Jones
Published 15 Jul 2013
39% complete
MRI
Case

Dermatomyositis

 Diagnosis almost certain
Dr Jeremy Jones
Published 16 Jul 2013
77% complete
MRI
Case

Intramuscular hemangioma

 Diagnosis certain
Dr Jeremy Jones
Published 26 Jul 2013
80% complete
MRIUltrasound
Article

Abductor pollicis longus

The abductor pollicis longus (APL) is a muscle found in the deep layer of the posterior compartment of the forearm. As it descends, it becomes superficial and passes under the extensor retinaculum and through the 1st extensor compartment of the wrist before attaching distally. It is one of the e...
Article

Abductor pollicis brevis

The abductor pollicis brevis is a thin subcutaneous muscle located laterally in the thenar eminence of the hand, and is one of the intrinsic muscles of the hand. Summary origin: mainly from the flexor retinaculum few fibers originate from the tubercles of scaphoid and trapezium and tendon of ...
Article

Opponens pollicis

The opponens pollicis is one of the muscles of the thenar eminence, deep to abductor pollicis brevis, and is one of the intrinsic muscles of the hand. The three muscles that constitute the thenar eminence muscle group are abductor pollicis brevis, flexor pollicis brevis and opponens pollicis. S...
Article

Platysma muscle

Platysma muscle is a broad superficial fascial sheet of thin muscle covering the superior anterior chest, anterior and anterolateral neck and anterolateral mandibular region. Gross anatomy The muscle consists of three parts: pars mandibularis, pars labialis and pars modiolaris. origin: the fa...

Updating… Please wait.

 Unable to process the form. Check for errors and try again.

 Thank you for updating your details.