One of the largest venous plexuses in the human body is the cerebral veins. They are also called straight veins because they really have no bends, which distinguishes them from other veins in the body. In simple terms, this group of vessels goes straight to where the corresponding human organs and tissues are located, without expanding or turning along the way.
Cerebral veins are directly connected to the brain (both the internal parts of the brain and its hemispheres); spinal canal, cranium and brain; parts of the eyeball, nose and mouth, auditory cells of the ear, pharynx, salivary glands and respiratory system; sometimes - skin.
These veins also carry blood away from the brain through the vessels to facilitate its functioning and prevent it from overheating. The cerebral direct veins are also responsible for ventilating the brain and supplying it with oxygen, as well as removing carbon dioxide and toxic substances from the brain and delivering them to the outside.