What is ostium?

Most often ostium is defined as any kind of small opening in the body. These openings can be external, such as pores or inner, such as the chambers of the heart. It is also a name for a small hole in the sponge.

There are many kinds of these holes in the human body. They occur in the heart, nose, fallopian tubes and skulls. They can carry blood or water inside or outside the body or serve as a hole for a vein.

Maxillary sinus, a sinus chamber located under the eye, has ostium for the drain of mucus secreted by the cavity. Maxillary sinus is lined with a cilia that helps move the mucus to the hole. When a human being experiences colds or allergies, it will not be able to release mucus fast enough, resulting in sinus pain.

foramen ovale is a type of bone ostium. It creates one of the larger holes in the skull base and provides an opening through which the nerves and veins are connected from the brain to the rest. The ostium of the egg tube is found in the reproductive system of the female and connects the uterine tube with Bthe fierce cavity. During ovulation, eggs or eggs pass through to reach the fallopian tube. From there he travels to the uterus to be fertilized.

Not all ostium are permanent. During embryonic development, several are created in the human heart. These holes later develop with the development of the human circulatory system.

For example, ostium prim is placed in the heart of human embryos. During development, the heart does not have a well -developed separate chamber. Later, these chambers grow closed by the development of tissue separating walls called septum. The original opening is closed and the second hole called ostium secunda opens in another place. Failure ostium prim For proper closing is one of the most common causes of heart defects.

Nezrava bodies can also have ostium. Mushrooms are multi-cellular marine creatures that have no organs. Instead they have outer pores that take water andnutrients from the outer body. The interior of the mushroom is divided into chambers for absorption. These pores take nutrients and eliminate them, sometimes from the same hole.