What is proximal?

What Does proximal Mean

The concept of proximal is used in the field of anatomy to refer to that which is close to the midline of a structure or a reference point. The opposite of proximal is distal , which refers to what is separated or distanced from the middle sector of something or from the reference.

It can be said, therefore, that the proximal is closer to the center or to the area of ​​union with the body . If we take into account the knees and the phalanges of the feet, for example, it can be said that the knees are proximal to the phalanges. Or, in the same way, that the phalanges of the feet are distal with respect to the knees.
The proximal colon , meanwhile, is formed by the initial part and the middle section of the colon (that is, the fragment of the large intestine that goes from the cecum to the beginning of the rectum). The proximal colon, therefore, includes the cecum , the ascending colon, and the transverse colon .

This means that the proximal colon includes the cecum (a kind of bag where the undigested food that comes from the small intestine goes), the ascending colon (which develops upwards, in the right sector of the abdomen) and the transverse colon. (crosses the body from the right stripe to the left). Then the distal colon appears, made up of the descending colon (directed downward on the left side) and the sigmoid colon (attached to the rectum).
The proximal phalanges , finally, are the bones that are at the basis of the toes and hands. They begin at the knuckles, which are headed by the metatarsals (in the feet) and the metacarpals (in the hands).

Go up