Excretory Ducts

Excretory ducts are channels that serve to remove urine from the excretory canaliculi into the cloaca or bladder. They play an important role in the process of removing waste from the body and maintaining the internal environment in a normal state.

In the embryos of higher vertebrates, including humans, the excretory ducts are represented by the ducts of the primary kidney, which are called Wolffian ducts. These ducts are the original elements of the urinary system and play an important role in the formation of urine.

In mature higher vertebrates, the excretory ducts are represented by ureters. The ureters are paired tubes that connect the kidneys to the bladder. They are responsible for transporting urine from the kidneys to the bladder, where it is temporarily stored before it is finally eliminated from the body.

The ureters have a complex structure and consist of three layers: internal mucous, middle muscular and external connective tissue. In addition, they are equipped with valves that prevent the backflow of urine from the bladder into the kidneys.

Impaired functioning of the excretory ducts can lead to serious diseases of the urinary system, such as urinary tract infections, kidney stones, etc. Therefore, it is important to monitor the health of the urinary system and promptly consult a doctor at the first signs of disruption to its functioning.

In conclusion, it can be noted that the excretory ducts are important elements of the urinary system, which ensure the proper functioning of the body and the maintenance of the internal environment in a normal state. Therefore, it is necessary to give them enough attention and care.

Excretory ducts (or simply ducts) are the general name for the channels of the body that serve to remove various substances from the body. More specifically, such functions are possessed by the final part of the canalicular system (pericoliche), which is located directly in the cloaca, separating the proximal and distal sections there.