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28 gru 2020 · The brachial plexus is the somatic plexus formed by the anterior rami of C5-C8 and most of the anterior ramus of T1. The brachial plexus as you can see, it originates in the neck. And then it passes over the 1 st rib. You can see that here. And then it goes underneath the clavicle to enter the axilla.
13 gru 2020 · The myenteric plexus, also known as Auerbach’s plexus, together with Meissner’s plexus (submucosal plexus) forms the enteric nervous system which regulates the function of the gastrointestinal system. The myenteric plexus is located between the inner and outer muscle layers of the muscularis externa. The submucosal plexus (Meissner’s ...
17 gru 2020 · Transcription. This is a quick tutorial on the radius and ulnar bones of the forearm. The radius bone is this bone here and it lies laterally in the anatomical position. The ulnar is this bone which lies medially in the forearm. These two bones articulate distally and proximally with each other and proximally, they also articulate with the humerus.
17 gru 2020 · In this video the following structures are discussed: Radial nerve. Posterior cord. Posterior cutaneous nerve of arm. Posterior cutaneous nerve of forearm. Inferior lateral cutaneous nerve of arm. Superficial and deep branches of radial nerve. Triangular interval. 3D video anatomy tutorial on the anatomy of the radial nerve.
28 gru 2020 · You’ve got the external jugular and the vertebral veins running through the posterior triangle. And then you’ve got this plexus of nerves, the brachial plexus, you’ve got the accessory nerve, which innervates the trapezius. Several structures run in the posterior triangle.
Tutorials coming soon. 3D models and videos covering the anatomy of the upper limb - learn about the muscles, bones, blood supply and nerves of the shoulder, arm, forearm and hand.
17 gru 2020 · The superficial venous system of the upper limb essentially consists of two main veins, which arise from the dorsal venous network. In green you can see arising laterally from the dorsal venous network, is the cephalic vein, and from the medial aspect of the dorsal venous network, we've got the basillic vein, which I've highlighted in purple.
17 gru 2020 · The first bit of knowledge is that the lumbar plexus is formed from the anterior rami of L1 to L4. Our second bit of knowledge is the mnemonic, 'I (twice) get laid on Fridays'. This gives us the order of the nerves, the six branches that come from the lumbar plexus. And our third bit of knowledge is the mnemonic, '2 from 1, 2 from 2, 2 from 3'.
13 gru 2020 · The triceps brachii is the sole muscle in the posterior compartment of the arm. As the name suggests, the triceps brachii has three heads: Long head. Medial head. Lateral head. These three heads converge to insert on the olecranon of the ulna. Origin: Long head – infraglenoid tubercle of scapula. Medial head – posteriorly on the shaft of ...
17 gru 2020 · The muscles of the posterior compartment are innervated by the radial nerve, which comes off the brachial plexus and winds around to innervate the posterior compartment. You can see the origin point of this long head means that this part of the triceps can actually adduct the arm slightly at the shoulder joint.
