Petrous Branch of the Superficial Middle Meningeal Artery (Ramus Petrosus Superficialis, Bna)

The petrous branch of the Superficial Middle Meningeal Aorta (Ramus Petrobus Superficials) is an important element of the human vascular system, which is necessary for nutrition and oxygen supply to the brain. In this article we will look at the anatomical description and functional significance of this important vessel.

The petrous surface is a section of the inner surface of the skull corresponding to the posterior part of the middle cerebral fossa. The transverse ligament gives off a process in the form of a bone plate (m. oticus), and in the transverse direction, on the stony surface, the hypoglossal canal, mastoid canal and superior temporal groove are visible, covering the apex of the pyramid of the temporal bone. On top there is a protrusion of the posterior cranial fossa called opacuin. In front of the internal carotid artery, which crosses the stony surface, lie the transverse sinuses. The petrosal sinus lies deep in the tissue and has a connection with the cavernous sinus, which runs along the upper wall of the pterygium. Posterior to the petrosal sinus are brainstem structures including the substantia perforatum, medulla oblongata, and posterior ventricles. In addition, along the upper edge of the petrous bone fissures there are the meninges and the sympathetic chain of nerves, which are directed posteriorly. **Stony branches of the superficial middle meningeal artery **(Ramus Petrotous superficials