The Brain and Nervous System

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cells called receptors that react easily to stimuli and initiate impulses in the afferent neurons with which they are in contact.
There are many types of headaches; some can be serious but most are not and are generally treated with analgesics.
The brain is made up of many specialized areas that work together. The cortex is the outermost layer of brain cells. Thinking and voluntary movements begin in the cortex. The brain stem is between the spinal cord and the rest of the brain. Basic functions like breathing and sleep are controlled here. The basal ganglia are a cluster of structures in the center of the brain. The basal ganglia coordinate messages between multiple other brain areas. The cerebellum is at the base and the back of the brain. The cerebellum is responsible for coordination and balance. The brain is also divided into several lobes. The frontal lobes are responsible for problem solving and judgment and motor function. The parietal lobes manage sensation, ...

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of the brain tissue in response to injury or electrolyte imbalances. Brain tumor is any abnormal tissue growth inside the brain. Whether malignant (cancer) or benign, brain tumors usually cause problems by the pressure they exert on the normal brain. Glioblastoma is an aggressive, malignant brain tumor (cancer). Brain glioblastomas progress rapidly and are very difficult to cure. Hydrocephalus is an abnormally increased amount of cerebrospinal (brain) fluid inside the skull. Usually this is because the fluid is not circulating properly. Normal pressure hydrocephalus is a form of hydrocephalus that often causes problems walking, along with dementia and urinary incontinence. Pressures ...

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