 Welcome to our next section. I'm Dr. Sanjay Sanyal, Professor and Department Chair of Anatomical Sciences. This short video clip is going to be on the muscles on the flexor aspect of the forearm. So we have dissected out all the structures here. And what you see in front of you is, first of all, this muscle here. This is the pronator T-rease muscle. And we had mentioned that this forms the intramedial boundary of the cubital fursor. And this muscle that you see here is the brachioradialis muscle. This pronator T-rease muscle is pierced by this structure here between the two heads of the pronator T-rease and this structure is the median nerve. It passes between the humeral head and the ulnar head. When we trace down, we notice this structure here. This is the flexor carpi radialis, flexor carpi radialis. The structure immediately medial to that, ulnar to that is this one. This thin tendon here. This is the palmaris longus tendon. And between the flexor carpi radialis and the palmaris longus tendon, this is the median nerve. Let's go further medially. We see this structure here. This is the flexor carpi ulnaris. The flexor carpi ulnaris, it starts from the common flexor origin. And as it comes down, it gets inserted onto this bony projection which you can feel here. This is the PC form bone. The PC form bone is like a sesamoid bone which is within the tendon of the flexor carpi ulnaris. So this is the flexor carpi ulnaris. This is the palmaris longus. This is the flexor carpi radialis. And this is the tendon of the brachior radialis. This is the first layer of muscles in the flexor compartment. The simple mnemonic is P-F-P-F. P stands for pronator T-rease. F stands for flexor carpi radialis. Again, P stands for palmaris longus. And F stands for flexor carpi ulnaris. Now let's remove the first layer of muscle. And we see the second layer of muscle. And the second layer of muscle, this which I've got open here, this is the flexor digitorum superficialis. And you can see traveling between layer 1, between layer 2 and layer 3 is this nerve here. This is the median nerve, but more of that in the next video. And finally, deep to the flexor digitorum superficialis, we have three other muscles, part of it, which you can see here. One is the flexor digitorum profundus. Other is the flexor polycystis longus. And the third one, which I'll show you later, is the pronator quadratus. So these are the muscles of the flexor compartment. And before I conclude from this video, I need to tell you what are all the structures that we can see on the flexor aspect near the wrist joint in order, in sequence. The most important landmark that we can immediately see is when we pinch our thumb to the little finger, we see a tendon standing up here. And the tendon which stands up is this one. This is the palmaris longus. The tendon immediately lateral to that is the flexor carbide radialis. And in between the two, this is an important landmark is the median nerve. This is an important site of giving regional anesthesia by the anesthetist. So between these two tendons, if you inject anesthetic agent, you anesthetize a large portion of the palm because you have anesthetized the median nerve. If you go further medially, this tendon which you feel just proximal to the pisiform bone is the flexor carbide ulnaris. And hidden under the flexor carbide ulnaris, we see a nerve here and we see an artery here. This is the ulnar nerve and just lateral to that is the ulnar artery. If you go further lateral to the flexor carbide radialis, you see this artery here and this is the radial artery which we can all palpate in front of our radius. So these are all the structures that we can see on the flexor aspect of the wrist and near the wrist joint. Thank you very much for watching, ladies and gentlemen. Have a nice day. Stay tuned for the next video.