Organs on the Left Side of Body

Organ means a group of tissues in a living organism that have been adapted to carry out a particular function. In higher animals, organs are organized into organ systems; for example, the esophagus, stomach, and liver are organs of the digestion system. Do you think you know your body truly well? If yes, you have to think twice. Our body is with all of us the time but we can’t state that we know everything about it.

What Organs Are on the Left Side of the Human Body?

Major Organs


The specific position of heart is partially towards the breastbone of the left side. Both the sides of heart are separated by a solid wall called septal wall. Each side contains 2 chambers from which the upper ones are called atria and lower ones are ventricles. The atria are smaller sized in size than ventricles and are used to hold the blood prior to moving to the ventricles. The atrium and ventricle of left side are thicker than the right side.


The area that loads up the food we eat in the digestion system is called stomach. The stomach is accountable for digestion of food and to secrete enzymes that help in assimilation and absorption of digested food. Stomach is located on the upper side of abdominal area. The upper end of stomach is secured by pyloric sphincter that helps in the passage of food towards the small intestines.

organs on the left side of your body
Organs on the left side of human body


The spleen is placed in the left upper side of abdominal area. It is an organ 4 inches long, responsible for producing new blood cells and eliminating worthless cells. Spleen is also accountable for filtering of blood and battling bacteria which can cause illness like meningitis and pneumonia. It also controls and assists water distribution throughout the body. A weak spleen can cause water retention in specific areas of the body in addition to weak body immune system.


Pancreas, an essential digestive gland discovered at the back of stomach. The gland has both endocrine and exocrine parts with length of as much as 6 inches. The head of pancreas lies along the right side of abdomen. The tail of pancreas is a narrow end that is extended towards the left area of the body. It is accountable to take in and process the essential nutrients consisting of carbs, proteins and fats, as well as launch digestion enzymes in the duodenum.

Large Intestines

Large intestinal tracts are present under the cavity of abdominal area and is signed up with by the rear end of little intestines. There is a list of organs present in huge intestinal tracts which includes colon, rectum and cecum. The cecum essentially starts from the right lower side. It first rises and crosses then slides down into the colon parts before going into the right lower part of anus.

They are responsible for getting water from food components that are taken in by the human body, and storage of feces prior to these are excreted from the body.

organs on the left side
Organs on the left side abdomen

Paired Organs

Because you have already had some understanding about what organs are on the left side of the body, specifically some major organs, you may want to know more about the paired organs in our body as they are equally essential for the function of our activities.

Left Lung

Lungs are essentially responsible for the respiration that is achieved by inhalation of oxygen and exhalation of carbon dioxide. Both lungs lie on either side of thorax and resemble a sponge. There exists a trachea which passes the air towards the lungs through bronchi– television like structures that resemble the branches. The size of left lung is smaller sized and narrower than the right one because the heart needs to be accommodated which is somewhat on the left side of the body.

Left Breast

It is located on the anterior chest wall. Female breasts are way more industrialized than men’s due to the have to supply babies with the nutrition at the time of nursing. The breast’s development depends on the estrogens and progesterone secretion in the body. The look of breasts can differ during the duration of pregnancy, like the size enhances to produce milk under the impact of Prolactin hormone. In many cases, the right and left breasts aren’t comparable due to an unknown factor. Very few females have symmetrical breasts.

Left Kidney and Adrenal Gland
Kidneys are accountable for urea, toxins, mineral, salts and waste item filtration from the blood. The left kidney is located a little higher than the right one because the right kidney is pushed downwards by the liver. The size of left kidney is almost the size of a fist.

At the top of the kidney sit adrenal or suprarenal glands. The adrenal glands of left and right side vary in size and shape. They are responsible for the management of hormone production.

Left Ureter

The ureter works like a pathway for urine when it takes a trip from kidney to the bladder. In case of ureter breakdown, the kidneys are at risk of getting infected. The sinus of kidneys constricts to form the ureters but if we take a look at the anatomy, the right and left ureters are somewhat different from each other. The left one is to the side of inferior mesenteric nerve, while the right one is located to the inferior vena cava.

Reproductive Organs

Now you have known what organs are on the left side of your body for all person, but there are some distinctions in this part because no typical person will have the three following organs at the same time.

Left Fallopian Tube

Two fallopian tubes are put separately on each side of uterus which then extend to the ovaries, present on the opposite side of uterus.These structures are just present in females, and are accountable to record the egg launched from the ovaries. The fallopian tubes are likewise bound to keep the health of the egg as it waits there for fertilization to take place.

Left Ovary

The sex hormones of female such as estrogen and progesterone are secreted by the almond shaped organs called ovaries. The production of egg also depends upon the proper performance of ovaries. Turns are taken by the ovaries of both sides each month for egg release. They are likewise accountable to secrete inhibin, which produces follicle-stimulating hormone (FSH).

Left Testis

Testis is only present in men. The testis is protected by scrotum, which appears like a sac, situated between anus and penis. The testis includes Leydig and Sertoli cells that are responsible for hormone production. In some men, the position of left testis is a bit greater than the right one and the left one is smaller sized in measurements due to the fact that of too much veins running above it.

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