Ventriklarna

Ventriklarna is a term used in neuroanatomy to refer to the fluid-filled cavities within the brain. There are four such cavities in the human brain, all interconnected and part of the ventricular system. The two largest are the lateral ventricles, located within the cerebral hemispheres. Each lateral ventricle consists of a central body and three horns: anterior, posterior, and inferior. Connected to the lateral ventricles, typically at the level of the thalamus, is the third ventricle, a midline cavity situated between the two thalami. Inferiorly, the third ventricle narrows to form the cerebral aqueduct, a narrow channel that passes through the midbrain. This aqueduct connects the third ventricle to the fourth ventricle, a diamond-shaped cavity located between the pons, medulla oblongata, and cerebellum. The fourth ventricle tapers inferiorly and becomes continuous with the central canal of the spinal cord.

The primary function of the ventricular system is the production, circulation, and absorption of cerebrospinal fluid (CSF). CSF acts as a cushion, protecting the brain and spinal cord from injury. It also plays a role in nutrient supply and waste removal from the central nervous system. The choroid plexuses, specialized vascular tissues found within the ventricles, are responsible for producing CSF. This fluid then flows through the ventricular system and eventually enters the subarachnoid space, where it is reabsorbed into the bloodstream. The intricate structure and precise flow of CSF within the ventricles are crucial for maintaining a healthy and functional central nervous system. Disruptions to this system, such as blockages or overproduction of CSF, can lead to conditions like hydrocephalus.