12/5/2023 0 Comments What functions are carried out by the human brain concept covered the brain an overview 2This swelling condition is called hydrocephalus (“water head”) and can cause seizures, cognitive problems, and even death if a shunt is not inserted to remove the fluid and pressure. This creates a problem when a ventricle is blocked-the CSF builds up and creates swelling and the brain is pushed against the skull. The entire brain contains only about 8.5 tablespoons of CSF, but CSF is constantly produced in the ventricles. CSF also functions to circulate chemical substances throughout the brain and into the spinal cord. The brain floats in CSF, which acts as a cushion and shock absorber and makes the brain neutrally buoyant. CSF is produced by a tissue called choroid plexus in fluid-filled compartments in the CNS called ventricles. The space between the arachnoid and pia maters is filled with cerebrospinal fluid (CSF). The last layer is the pia mater (Latin for “soft mother”), which directly contacts and covers the brain and spinal cord like plastic wrap. The middle layer is the web-like arachnoid mater. The dura mater also contains vein-like structures that carry blood from the brain back to the heart. As the Latin suggests, the primary function for this thick layer is to protect the brain and spinal cord. The outermost layer is the dura mater (Latin for “hard mother”). The central nervous system (CNS) is made up of the brain, a part of which is shown in Figure 16.19 and spinal cord and is covered with three layers of protective coverings called meninges (from the Greek word for membrane). Describe the basic functions of the spinal cord, cerebral lobes, and other brain areas.Identify the spinal cord, cerebral lobes, and other brain areas on a diagram of the brain.
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