 So, this is a quick demonstration of the dissection of the hand. This structure that you see in front of you, this is the palmar aponeurosis. The V-shaped structure which we have split open, the apex of the V is approximately which is attached to the fixerate nebulum. And the base of the V has got four slips, we can see them each going to the four fingers. So, this is the palmar aponeurosis. This is the fixerate nebulum which we have got. And getting attached to the fixerate nebulum from the proximal aspect is this tendon here which is the palmar aponeurosis tendon. So, we have split open the fixerate nebulum to show the structures passing through the fixerate under the fixerate nebulum. And we can see the most important structure which is passing under this is the median nerve. And this median nerve is the one which gets compressed in carpal donor syndrome. We can see that the median nerve is giving a branch above the carpal tunnel which goes and supplies the palm. So, therefore, this branch does not get compressed in carpal tunnel syndrome and the palmar skin gets spared. In this particular patient, we can also see an additional structure. This is what is known as the persistent median artery which is an anatomical abnormality. This can also produce carpal tunnel syndrome. Okay, let's continue. Let's look at the carpal fixerate nebulum itself. We can see that it's a very thick structure and medially it is attached to the PC form and the hook of hammit and we can feel it here. And laterally the carpal fixerate nebulum is attached to the tubercle of the scaphoid and the tubercle of the trapezium. So, therefore, it converts this whole place into a tunnel. And passing through the carpal tunnel apart from the median nerve are these tendons. These four tendons which are picked up and we can see some of the sanivarshi is still intact here. This is the flexor digitonum superficialis, FDS tendon. And deep to the FDS are these four tendons. These are the flexor digitonum profundus. This is the flexor digitonum profundus. So, these four plus these four, eight tendons and each FDP is accompanied by one lubricant which makes it 12 structures are located in the central compartment. But through the carpal tunnel we have only these four and these four and we also have the flexor policies longest tendon passing. The flexor policies longest tendon also passes through the carpal tunnel. So, therefore, nine structures are passing through the carpal tunnel and they compress the median nerve in carpal tunnel central. If I were to lift up the flexor digitonum profundus, I can see a muscle here. This is the proentered quadratus and this space where my finger is located, this is known as the space of Peruna. The space of Peruna is a space between the FDP and the proentered quadratus and if I put my finger in the way I have done it, it goes distally into the mid-palmer space. The mid-palmer space is a space deep to the central compartment which again is deep to the palmer eponeurosis and infection from here can spread to the space of Peruna. This is the tenar evidence, the tenar muscles and these are the hypotenar muscles. We can see that the tenar muscles are supplied by a recurrent branch of the median nerve. This is the median nerve and we can see it is giving a recurrent branch. The recurrent branch is the one which supplies the tenar muscles except the deep head of flexor policies brevis. The significance of this is that if a patient falls like this, he can endure the recurrent branch and can paralyze his tenar muscles even though the rest of the median nerve may be intact. So, this is another clinically important point to be remembered. What are the other structures we can see apart from the palmaris longus which I have already mentioned? We can see this tendon here. This is the flexor carbide radial tendon. This is the radial artery which goes through the anatomical snub box which I shall demonstrate just now and further medially we can see this tendon here. This is the flexor carbide ulnaris which gets inserted onto the pisimom bone and from there it gets communicated with the hemate by the pisohemate ligament and under cover of this we have these two structures. The median one is the ulnar nerve and the lateral one is the ulnar artery. Point to be remembered is both the ulnar artery and the ulnar nerve do not go through the carpal tunnel. They go superficially to the carpal tunnel therefore they are not compressed in carpal tunnel syndrome. Now we shall turn the hand and turn it dorsal. We can see this shiny structure here. This is the extensor retinogulum and this extensor retinogulum is attached to the radius to the ulnar and to the dorsal tubercula of the radius and it converts the space here into six compartments. Going through the first compartment we have these two tendons which form the lateral boundary of the anatomical snub box namely the abductor polices longus and extensor polices brevis. Then we have the going through the third compartment is this extensor polices longus. Going through the second compartment is the ECRL and ECRB. We can see that the radial artery is passing through the anatomical snub box and it comes on the dorsal aspect and this is the radial artery and then it pierces through the first dorsal intrusions and comes to the palm and forms the deep palmar arch. To continue with the other compartments we have the next compartment, the fourth compartment which gives rise to the passage to the extensor digitorum and the extensor indices. The fifth compartment gives passage to the extensor digiti mingimi and the sixth compartment gives passage to the extensor bar by ulnaris. Every tendon is enclosed in its own sinus wheel sheath. The dorsal tendons get inserted onto the aponeurotic dorsal digital expansion of the digits. Thank you very much for watching. If you have any questions please put them in the comment section below.