The anatomy of the human heart: what are its parts and functions?

Anatomy of the human heart

source: www.anatomylibrary.us

Many people may think the liver has a shape like ' love 'Or ‘ivy leaves'. In fact, this organ weighing no more than 1.5 kg is shaped like a triangle. The liver is located in the upper right part of the abdominal cavity and below the diaphragm.

When viewed with the naked eye, the anatomy of the liver consists of four lobes (sections) of different sizes. Here are the parts of the liver lobe you need to identify.

1. The right lobe of the liver

The right lobe is the largest part of the liver and is 5-6 times larger than the left lobe.

2.Left lobe (left lobe of liver)

Unlike the right lobe, this part of the heart is tapered and smaller. The left and right lobes are separated by falciform ligaments.

3. Caudate lobe

The caudate lobe is smaller than the two previous lobes. The location of this lobe extends from the back side of the right lobe and encloses the main vein (vena cava inferiori).

4. Squared lobe

Compared to the caudate lobe, the squared lobe is lower and is on the back side of the right lobe to enclose the gallbladder.

The squared and caudrate lobes are also rarely seen on anatomical images because they are located behind the left and right lobes.

After getting to know the liver lobes, there are other parts of the liver that are also included in the digestive organs, from the bile ducts to the liver lobules.

Bile duct

source: www.anatomybody-chart.us

The bile duct is a duct connecting the liver and the gallbladder, which is the storage place for bile. Bile is a substance that is produced by the body to help digest fat and is stored in the gallbladder.

Next, the bile duct meets the larger left and right hepatic ducts. These two ducts later carry bile from the left and right liver lobes.

Then, the two hepatic ducts will also join to form one channel to drain all the bile from the liver. Most of the bile produced from the liver flows into storage bags, until it is used for the digestive process.

Blood vessel

Unlike other organs of the body, the blood supply from the liver has the hepatic portal vein system.

Blood from organs such as the spleen, pancreas, gallbladder and intestines will collect in the hepatic portal vein. From there, blood is sent to the liver, which will be processed first before being transmitted.

The anatomy of this part of the liver is the place where blood collects from the liver. Furthermore, the blood will lead to the vena cava and then back to the heart.

Just like other organs of the body, the human heart also has arteries and arterioles which produce oxygenated blood for the needs of its tissues.

Lobules

Did you know that the internal structure of the liver is made up of about 100,000 liver cells? Liver cells are the inner part of the liver that is hexagonal in shape and is known as a lobule.

Each liver lobule consists of a central blood vessel surrounded by six hepatic veins and six hepatic arteries. These blood vessels are connected by many small, tortuous ducts, or so-called sinusoids.

Each sinosuid has two main cell types, namely kupffer cells and hepatocytes.

Kupffer cells

Kupffer cells are cells derived from the white blood cell network. This function of the liver cells destroys foreign substances or eye cells. In liver anatomy, kuppfer cells play a role in capturing and breaking down old red blood cells and passing them on to hepatocytes.

Hepatocyte cells

Hepatocytes are the cells that line the sinusoids and make up most of the cells in the liver. Hepatocytes have important functions because they perform most of the functions of the liver, namely:

digestion,
metabolism, and
storage and production of bile.

By knowing the anatomy of the liver well, you can keep your liver healthy from now on. Caring for the liver means anticipating the occurrence of various diseases in the liver.