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  • The brain is located in theOption: 1 Thoracic cavityOption: 2 Cranial cavity<

The brain is located in the

Option: 1

Thoracic cavity


Option: 2

Cranial cavity


Option: 3

Body cavity


Option: 4

Below vertebrae


Answers (1)

best_answer
 

As we have leant:

Human Brain: Location and Coverings

  • The brain is located in the cranial cavity (cranium) of the skull.
  • It is enclosed in a bony case called cranium which protects brain against external injury.
  • The brain is surrounded by three membranes called meninges (sing-meninx).
  • Outer duramater is a tough white membrane present below the cranium, closely adhering to the cranium.
  • Middle arachnoid layer has a network of fibres.
  • Inner piamater is a thin, transparent, and vascular membrane close to the surface of the brain and spinal cord. 
  • The space between duramater and arachnoid is the subdural space.
  • The space between the arachnoid and piamater is known as subarachnoid space.
  • These spaces surrounding the brain as well as the cavities within the brain are filled with a lymphatic fluid, called cerebrospinal fluid (CSF). 
  • The cerebrospinal fluid is also present within the spinal cord.
  • The cerebrospinal fluid protects the central nervous system from external shock; helps in exchange of nutrients and waste products between the nervous tissue and blood and maintains a constant pressure in and around the brain.

Therefore, the brain is located in the cranial cavity (cranium) of the skull. Hence, the correct answer is option b.

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