 Now let's take a quick look at two important structures on the Dorsal aspect we shall not focus on the individual muscles on the extensor aspect instead We will focus first on this space here This space that you see here is the anatomical snub box So anatomical snub box has got a medial boundary and it's got a lateral boundary And you can see them clearly here the medial boundary is formed by the abductor policies longest and the extensor policies brevis Abductor policies longest and the extensor policies brevis is forming the medial boundary and the lateral boundaries form at the extensor policies longest The proximal end you can feel the radial stellar process Distantly we can feel the base of the first metacarpal bone and on the floor We can feel the trapezius young and as I already mentioned Running through the floor is this structure the most important structure that is the deep branch of the radial artery Which courses through and which continues as the deep continues into the palm as the deep armor arch Okay, that's the one thing which I wanted to show you The next thing I wanted to show you Are the tendons which are running on the torso aspect of the wrist just like I showed you the tendons on the Palmer aspect of the wrist can you see the structure here obliquely going up this bands of fibers This is their extensor retinaculum It is going obliquely from the radius to the ulnar side and this as it crosses over It divides the whole dorsal aspect into six compartments like to so let's take a quick look the first compartment We have the abductor policies longest and the extensor policies brevis The second compartment gives passes to the extensor carpet idealist longest and extensor carpet idealist brevis The third compartment gives passes to the extensor policies longest The fourth compartment gives passes to these four tendons that extensor digitorum and the extensor indices The fifth compartment gives passes to the extensor digiti mini me and the sixth compartment gives passes to this portion That you see here and that is the extensor carpet alaris So these are the four six compartments under the extensor retinaculum Okay, having mentioned that let's come to the last part and that is what are the structures that we can see on the palm on the hand This because of this rigor mortis this hand has been frozen, but anyway, let's see what we can salvage from here What are the structures that we see on the hand? Straightaway, we notice first of all that this was as we had mentioned This was the pommel ligament and the pommel tin pommel's longest tendon pommel's longest tendon gets inserted onto the flexor retinaculum also known as the transverse carpal ligament and The flexor retinaculum is attached to the PC form and the hook of amide Loose capoid and the trapezius. So therefore it forms a tunnel which is known as the carpal tunnel and through the carpal tunnel travels The travels the main trunk of the medial nerve, which I mentioned Attaching to the flexor retinaculum. We can see this structure here This is the power upon your roses and the power upon your roses as you know has got four slips each slip going towards the Little finger the ring finger Middle finger and the index finger. So this is the power upon your roses What we can also see on the Lateral side, we can see this elevate group of muscles These are collectively the muscles of the theater evidence and on the ulnar side We can see these group of muscles. These are collectively the muscles of the Hypothenor eminence and incidentally a few slips of the power is brevis, which is superficial It is not part of the hypothenor eminence is also seen here. This is the hypothenor. The power is brevis What else we can see? We can see some of the fibers of the median nerve here The the metacarpal branches and they will divide into the common and the proper digital branches We can see one of the median nerve branches here and there are a few other branches which are visible on the other sides also I Would like to draw your attention to this Interocious muscle here, which I already mentioned in the first interspace that is between the metacarpal bone first and the second And I also told you the significance of that is that there's a small tunnel there Which gives passage to the deep branch of the radial artery which goes from the dorsal aspect and comes to the Palmer aspect and forms a deep camera deep Palmer arch So that's all For this two section Ladies and gentlemen, thank you very much for watching. If you have any questions or comments put them in the comment section below Thank you camera persons. Have a nice day