Information: - The choroid plexus is a plexus of cells that produces the cerebrospinal fluid in the ventricles of the brain. The choroid plexus consists of modified ependymal cells. - In anatomy, a potential space is a space that can occur between two adjacent structures that are normally pressed together. The pleural cavity, between the visceral and parietal pleura of the lung, is sometimes referred to as a potential space although, strictly speaking, it contains some fluid and is therefore an actual space, albeit a small one. - Body fluid, bodily fluids or biofluids are liquids originating from inside the bodies of living people. They include fluids that are excreted or secreted from the body, and body water that normally is not. - Dura mater (or ), or dura, is a thick membrane that is the outermost of the three layers of the meninges that surround the brain and spinal cord. It is derived from mesoderm. - Cerebrospinal fluid (CSF) is a clear, colorless body fluid found in the brain and spine. It is produced in the choroid plexuses of the ventricles of the brain. It acts as a cushion or buffer for the brain's cortex, providing basic mechanical and immunological protection to the brain inside the skull. The CSF also serves a vital function in cerebral autoregulation of cerebral blood flow. - A cadaver, also called corpse (singular) in medical, literary, and legal usage, or when intended for dissection, is a deceased body. The obsolete British term "lich" for "corpse", sometimes spelled "lych", is no longer even listed in major British dictionaries such as Longman, Macmillan, Cambridge, or Oxford Online Dictionaries. However, the term "lich" has been revived in modern fantasy fiction for a type of "undead" creature. - A hematoma is a localized collection of blood outside the blood vessels, due to either disease or trauma including injury or surgery and may involve blood continuing to seep from broken capillaries. A hematoma is initially in liquid form spread among the tissues including in sacs between tissues where it may coagulate and solidify before blood is reabsorbed into blood vessels. An ecchymosis is a hematoma of the skin larger than 10mm. - The subdural space (or subdural cavity) is a potential space that can be opened by the separation of the arachnoid mater from the dura mater as the result of trauma, pathologic process, or the absence of cerebrospinal fluid as seen in a cadaver. In the cadaver, due to the absence of cerebrospinal fluid in the subarachnoid space, the arachnoid mater falls away from the dura mater. It may also be the site of trauma, such as a subdural hematoma, causing abnormal separation of dura and arachnoid mater. Hence, the subdural space is referred to as "potential" or "artificial" space. - In the central nervous system, the subarachnoid space (subarachnoid cavity) is the anatomic space between the arachnoid mater and the pia mater. - A subdural hygroma is a subdural body of cerebrospinal fluid ( CSF ) , without blood . Most subdural hygromas are believed to be derived from chronic subdural hematomas . It is commonly seen in elderly patients after minor trauma but can be seen in children after an infection . One of the common causes of subdural hygroma is a sudden decrease in pressure by ventricular shunting . This can lead to leakage of CSF into the subdural space especially in cases with moderate to severe brain atrophy . In these cases the symptoms such as mild fever , headache , drowsiness and confusion can be seen , which are relieved by draining this subdural fluid . - The arachnoid mater is one of the three meninges, the protective membranes that cover the brain and spinal cord. The arachnoid mater is a derivative of the Neural crest mesectoderm in the embryo. - A subdural hematoma (American spelling) or subdural haematoma (British spelling), also known as a subdural haemorrhage (SDH), is a type of hematoma, usually associated with traumatic brain injury. Blood gathers between the inner layer of the dura mater and the arachnoid mater. Usually resulting from tears in bridging veins which cross the subdural space, subdural hemorrhages may cause an increase in intracranial pressure (ICP), which can cause compression of and damage to delicate brain tissue. Subdural hematomas are often life-threatening when acute. Chronic subdural hematomas, however, have a better prognosis if properly managed. After reading the paragraphs above, we are interested in knowing the entity with which 'subdural hygroma' exhibits the relationship of 'subclass of'. Find the answer from the choices below. Choices: - anatomy - body fluid - brain - chronic - cover - cross - disease - dissection - fantasy - fiction - fluid - injury - membrane - people - plexus - process - protection - skull - space - system - traumatic brain injury - type - undead - water
Answer:
disease