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Which of the following is not a part of human central neural system?
The brain is wrapped in DAP (Dura, Arachnoid, Pia)! Pericardium wraps the HEART!
The human central nervous system consists of the brain enclosed inside the cranium and the spinal cord inside the vertebral column. Inside the bony skull, the brain is covered and cushioned by three cranial meninges: 1. Dura mater: Tough, fibrous outermost layer. 2. Arachnoid: Thin, web-like intermediate layer. 3. Pia mater: Delicate, vascular innermost layer in intimate contact with brain tissue.
The pericardium is the double-walled fluid-filled sac that surrounds and protects the heart in the thoracic cavity. It consists of an outer fibrous layer and an inner serous pericardium, reducing friction during cardiac contraction.
Pericardium is not a part of the human central neural system.
Diagnose every choice: Know exactly why the right option works and why distractors fail.
Incorrect. Arachnoid is the middle cranial meninx of the central nervous system.
Incorrect. Dura mater is the tough outermost meninx protecting the brain and spinal cord.
Incorrect. Pia mater is the innermost meninx adhering directly to the brain surface.
Exact: Pericardium is the membrane surrounding the heart (cardiovascular system), not part of the central nervous system.
Students moving too fast overlook the negative qualifier "NOT" and select Dura mater (Option 2) or Arachnoid (Option 1) as valid neural structures.
"The cranial meninges protecting the brain are Dura mater, Arachnoid, and Pia mater."
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