Which of the following best describes the characteristics of the left ventricle in diastolic heart failure?

A. Rejuvenation –. This is not a physiological term used in the context of ICP or brain compensation.
B. Autoregulation –This is the brain’s ability to maintain consistent cerebral blood flow (CBF) despite changes in systemic blood pressure. In early stages of increased ICP, autoregulation helps maintain oxygen and nutrient delivery to brain tissue by adjusting cerebral vessel diameter.
C. Percolation –This term is not relevant in neurophysiology or ICP management.
D. Demarcation –This refers more to distinguishing boundaries between tissues (e.g., in gangrene), not compensatory mechanisms for ICP.

A. Hydrocephalus is not a normal variation — it is a neurological disorder that requires medical attention.
B. Hydrocephalus is caused by an increase, not a decrease, in cerebrospinal fluid (CSF) in the brain's ventricles.
C. While inflammation (like meningitis) can lead to hydrocephalus, the condition itself is not defined by brain tissue inflammation.
D. Hydrocephalus is characterized by an abnormal buildup of CSF in the brain’s ventricles, leading to ventricular enlargement and increased intracranial pressure. This can be due to obstruction, poor absorption, or overproduction of CSF.