Liver: Surface Anatomy – Liver and Gallbladder

by James Pickering, PhD

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    00:01 In this lecture we are going to look at the liver and gallbladder.

    00:05 So today we'll start off by looking at the surface anatomy, the position of the liver.

    00:10 And then going to explore it's gross anatomy, so we'll look at the anterior and posterior view.

    00:15 We will look at the lobes, fissures and the porta hepatis.

    00:19 We will look at the peritoneal relations and the coronary ligaments. And then look at the blood supply and venous drainage of the liver. And we will look at the functional lobes and hepatic segments towards the end. We will also look at the gallbladder, various parts of the gallbladder, its position against the liver and the biliary tree and how it connects with the pancreas and the duodenum.

    00:43 Now the liver is the largest gland in the body and because of that it is vitally important in maintaining the internal environment.

    00:51 It performs the whole number of functions including various aspects of metabolic activity importantly it stores glycogen and for digestion it produces bile.

    01:02 We will look at that in more detail when we look at the biliary tree and the gallbladder.

    01:08 So the surface anatomy of the liver. We looked at briefly when we did the surface anatomy lecture right at the very beginning of this course.

    01:17 So here we can see the liver is positioned within the abdomen and it is actually covered by quite of few of the ribs. We can see we have rib 6, 7, 8, 9, 10 all protecting this right lobe of the liver.

    01:33 And it's quite difficult to palpate the liver; because, it is actually tucked under these ribs. We can see it's existing up in the right hypochondriac region and it extends all the way across the epigastric into the left hypochondriac region.

    01:49 We can see its relation, it's slightly interior to the stomach here.

    01:53 It covers the duodenum and it’s also related to the hepatic flexure of the colon.

    01:58 So the liver is very large gland sitting directly underneath of the right dome of the diaphragm, mostly in this right upper quadrant of the abdomen.

    02:10 As I have mentioned it's the largest gland in the body.

    02:13 And it is positioned in the right hypochondria, the epigastrium and sometimes the left hypochondriac regions.

    02:19 It is inferior to the diaphragm, specifically the right dome of the diaphragm And the liver is made up of 4 anatomical lobes. And these are important.

    02:28 4 anatomical lobes not functional lobes. There is the left, right, caudate and quadrate.

    02:35 There is also 2 functional lobes and 8 hepatic segments.

    02:42 These are really important. And these lobes are different from the anatomical lobes.

    02:47 The anatomical lobes are really named after what you can see and various fissures that separate the liver into various parts: left, right, caudate, quadrate.

    02:56 But they have 2 functional lobes based on the branches of the hepatic artery and these functional lobes can be further divided into 8 hepatic segments which we will explore later on.

    03:08 The Liver is suspended within the abdomen by peritoneal ligaments primarily via the coronary ligaments that's suspended from the diaphragm And I have mentioned the numerous functions of the liver. Its metabolic activities storing glycogen and producing bile.

    About the Lecture

    The lecture Liver: Surface Anatomy – Liver and Gallbladder by James Pickering, PhD is from the course Abdomen.

    Included Quiz Questions

    1. Right hypochondrium
    2. Right lumbar
    3. Right inguinal
    4. Epigastric
    5. Left hypochondrium
    1. 6, 7, 8, 9, and 10
    2. 7, 8, 9, and 10
    3. 6, 7, 8, and 9
    4. 7, 8, and 9
    5. 10, 11, and 12
    1. 2
    2. 8
    3. 4
    4. 12
    5. 10
    1. Superior
    2. Caudate
    3. Quadrate
    4. Left
    5. Right

    Author of lecture Liver: Surface Anatomy – Liver and Gallbladder

     James Pickering, PhD

    James Pickering, PhD

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