Скачать или смотреть Liver | External Features | Human Abdominal Organs | Medical Student Anatomy Education

Here again, with an exciting anatomy video stuffed with in-depth knowledge. The topic under discussion is the liver.

In this video, we are going to understand the anatomy of the liver, the functional anatomy of the liver, the hepatic artery location, and the ligaments of the liver.

▬ Liver ▬▬▬▬▬▬▬▬▬▬
The liver is a large and solid gland situated in the right upper quadrant of the abdominal cavity. In the living subject, the liver is reddish brown in color, soft inconsistency, and very friable. It weighs about 1600 g in males and about 1300 g in females.

▬ Location of Liver ▬▬▬▬▬▬▬▬▬▬
The liver occupies:
🟡 Right hypochondrium
🟡 Epigastrium
🟡 Left hypochondrium

▬ External Features of Liver ▬▬▬▬▬▬▬▬▬▬
External Features of the liver are:

👉 Surface
The liver has five surfaces:
🟠 Anterior surface
🟠 Interior surface
🟠 Superior surface
🟠 Inferior surface
🟠 Right border

👉 Prominent Border
The inferior border is sharp anteriorly where it separates the anterior surface from the inferior surface. It is somewhat rounded laterally where it separates the right surface from the inferior surface. The sharp anterior part is marked by:
🟡 Notch for the ligamentum teres
🟡 Cystic notch

👉 Lobes
The liver is divided into:
🔵 Right Lobe
🔵 Left Lobe
🔵 Caudate Lobe
🔵 Quadrate Lobe

You will easily memorize using a mnemonic. For this, you have to watch our video.

▬ Vitamins Stored in the Liver ▬▬▬▬▬▬▬▬▬▬
Vitamins stored in the liver are:
🟠 Vitamin B12
🟠 Vitamin D
🟠 Vitamin B
🟠 Vitamin A
🟠 Vitamin K
🟠 Folic Acid

You will easily memorize using a mnemonic. For this, you have to watch our video.

▬ Blood Supply of Liver ▬▬▬▬▬▬▬▬▬▬
The liver receives 20% of its blood supply through the hepatic artery, and 80% through the portal vein.

👉 Porta Hepatis
Structures at porta hepatis from anterior to posterior side:
🟡 Hepatic ducts
🟡 Hepatic artery
🟡 Portal vein

You will easily memorize using a mnemonic. For this, you have to watch our video.

👉 Hepatic Lobule
Hepatic Lobule consists of:
🔵 Portal radicles (bile ductule, branch each of portal vein and hepatic artery)
🔵 Central vein
🔵 Bile canaliculus
🔵 Sinusoid
🔵 Space of Disse

▬ Hepatic Segments ▬▬▬▬▬▬▬▬▬▬
There are four segments in the liver:
🟠 Right anterior (V and VIII)
🟠 Right posterior (VI and VII)
🟠 Left lateral (II and III)
🟠 Left medial (I and IV)

You will easily memorize using a mnemonic. For this, you have to watch our video.

▬ Functions of Liver ▬▬▬▬▬▬▬▬▬▬
The liver is an indispensable gland of the body. The functions of liver are:
🟡 Metabolism
🟡 Synthesis
🟡 Excretion
🟡 Protective
🟡 Storage

You will easily memorize using a mnemonic. For this, you have to watch our video.

▬ Liver Histology ▬▬▬▬▬▬▬▬▬▬
Histology of the liver is:
🔵 Hepatocytes
🔵 Portal tract
🔵 Sinusoid
🔵 Kuffer’s cells

👉 Hepatic Lobule
Hepatic Lobule consists of:
🟠 Portal radicles (bile ductule, branch each of portal vein and hepatic artery)
🟠 Central vein
🟠 Bile canaliculus
🟠 Sinusoid
🟠 Space of Disse

👉 Portal Lobule
The Portal lobule seen in humans is triangular in shape with three central veins at the sides and a portal tract in the centre

👉 Liver Acinus
The liver acinus is defined as the liver parenchyma around a preterminal branch of the hepatic arteriole between two adjacent central veins.