What is on the left side of the abdomen

No matter how careful and attentive we are in life, we can never avoid the occurrence of some diseases. Among them, stomach pain is the most common phenomenon. However, due to the complexity of the human body structure, different parts of the stomach pain and the feeling of pain will lead to different diseases. Therefore, we must master the distribution of organs in our body in order to make the body healthier. Let's understand what is on the left side of the lower abdomen.

What is on the left side of the abdomen?

The abdominal cavity on the left side of the abdomen contains:

The spleen, part of the pancreas, part of the stomach, part of the duodenum, jejunum and ileum in the small intestine, part of the transverse colon and the left flexure of the colon, the descending colon, the sigmoid colon, the left kidney on the posterior wall of the abdominal cavity, the ureter, part of the bladder, and in women, the left ovary, fallopian tube, part of the uterus, etc.

Abdominal surface divisions

In the middle of the abdomen, from the xiphoid process down to the pubic symphysis, it represents the beginning and end of the white line in the abdominal wall. At the midpoint of the linea alba is the umbilicus. In a muscular person's abdomen, you can see eight rectus abdominis muscles extending out to the sides. From the outside, these muscles can be seen to be crossed by three or more tendons. One is near the xiphoid cartilage, one is at the umbilicus, and one is in between the two. The white line and these three tendon lines divide the abdomen into "six grids". This is exactly the look that fitness enthusiasts are looking for.

The upper abdomen is bounded by the lower edges of the ribs formed by the articulation of the false costal cartilages (8, 9, and 10). The inferior boundary is the anterior iliac spine and the Poupart ligament, which originates from the anterior superior iliac spine and ends at the pubic spine. The lower limit is groove-shaped on the body surface. On both sides above the pubic spine are the inguinal rings, which are openings in the abdominal wall muscle layer through which the spermatic cord passes in men. An inguinal hernia may occur here.

One way to quickly understand the location of the abdomen and its contents is to draw three horizontal lines and two vertical lines. The highest of the former is the C. Addison's pyloric transverse line, which is located at the midpoint of the line connecting the suprasternal notch and the upper part of the pubic symphysis, and intersects with the pylorus of the stomach one inch to the right of the midline. The two renal hilums are slightly inferior to it, while its left end is close to the lower border of the spleen. Posteriorly it meets the first lumbar vertebra. The second line is the subcostal line, which passes through the lowest point of the costal arch (the tenth rib). It meets the upper part of the third lumbar vertebra, about an inch above the navel. It roughly indicates the location of the transverse colon, the lower end of the kidneys, and the upper limit of the transverse part (third part) of the duodenum. The third line is the intertubercular line, which runs between the two thick tubercles and is located on the outer lip of the iliac crest, approximately 2.5 inches (60 mm) away from the anterior superior iliac spine. This line meets the 5th lumbar vertebra and passes just above or just above the ileocecal valve, which is where the small intestine joins the large intestine. Two vertical lines or the median Poupart line pass through the midpoint of the line connecting the anterior superior iliac spine and the pubic symphysis on both sides and reach the ribs perpendicularly. The right line is more significant, and where it intersects the intertubercular line is the ileocecal valve. The opening of the appendix is ​​one inch below, the so-called McBurney point. At its upper part, the vertical line and the transverse pyloric line intersect with the lower edge of the ninth rib. This is where the gallbladder is located. The left median Poupart line indicates the medial border of the descending colon at its upper three quarters. The lower edge of the right rib is the lower boundary of the liver, and the right nipple is half an inch above this organ.

The above is an introduction to what is on the left side of the abdomen. After understanding it, we know that there are many organs on the left side of the abdomen. Once we experience pain, we must go to the hospital for examination and diagnosis in time before receiving treatment. Don’t think that you have eaten something wrong every time you have stomach pain.