Here's the curve of the first rib, and here's scalenus anterior. Each lumbrical inserts on the radial side of the extensor mechanism, just distal to the long part of the interosseous tendon. It emerges at the wrist to the radial side of the superficialis tendons. Goodreads helps you keep track of books you want to read.
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In addition here, on the radial side only, is the tendon of a lumbrical muscle. The other two we'll see in the aclland section. Some arise in other ways. It also has some fibers arising from the lower four ribs, and occasionally from the tip of the scapula. Here's the ulnar nerve at the wrist, with its superficial branch, and its deep branch. On the outside are abductor digiti minimi, and flexor digiti minimi. It inserts here, on the upper medial corner of the scapula.
The two wrist flexors diverge, to arrive at the radial and ulnar sides of the wrist. Here are the divided ends of the clavicle, the first rib, the anterior scalene muscle, and the second rib.
The lumbricals pass in front of the deep transverse metacarpal ligament. Camille Mcnally added it Jan 11, The humero-ulnar head arises, as part of the common flexor tendon, from the medial epicondyle of the humerus, and also from the adjoining ulna.
This flat ligament, the coraco- acromial ligament, joins the coracoid process to the acromion. These divide the space under the retinaculum into several small, separate tunnels. Here are the vertebrae: The tendon of origin of the short head merges with that of another muscle, coracobrachialis.
The proximal and middle phalanges are flattened on their flexor aspects.
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In addition, the subclavian gives off two branches to the back and shoulder region: Deep to them both is opponens pollicis. This movement is called upward rotation.
The flat part, or blade, is roughly triangular with an upper border, a lateral border, and a medial border. This product is now available online at http: Supraspinatus initiates abduction of the humerus.
There are two bony projections annatomy each side. To get there, it passes inside the joint capsule, and right over the top of the head of the humerus.
Acland's Videos - Anatomy at Ginsburg - Research Guides at Temple University
The long head of triceps arises here, from the infraglenoid tubercle. Distally it separates into slips, which insert into the edges of the palmar plates of the MP joints. Over the proximal phalanx, the superficialis anaromy splits into two halves, which pass around the profundus tendon. The one on the front is subscapularis.
It's not anqtomy too formidable. We'll look at the main components of the brachial plexus first, then at the local branches. It articulates with the trochlea of the humerus. It lies just beneath the palmar aponeurosis, which has been removed here. The tangle which this produces is called the brachial plexus. The scapula and clavicle articulate with the bones of the thorax at one point only, here, at the sternoclavicular joint.