GENERAL HISTOLOGY

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NERVOUS SYSTEM SPECIAL SENSE

SPINALCORD

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Concerning the subarachnoid space, all the following are true EXCEPT:
A
Contains cerebrospinal fluid
B
Traversed by the ligamentum denticulatum
C
Crossed by fibrous processes connecting pia mater to the arachnoid mater.
D
Not continues with the subarachnoid space of the posterior cranial fossa.
E
Ends inferiorly at the level of S. 2
Explanation: 

Detailed explanation-1: -The subarachnoid space consists of the cerebrospinal fluid (CSF), major blood vessels, and cisterns. The cisterns are enlarged pockets of CSF created due to the separation of the arachnoid mater from the pia mater based on the anatomy of the brain and spinal cord surface.

Detailed explanation-2: -The spinal subarachnoid space is the space between the arachnoid mater and pia mater in the spine and is continuous with the intracranial subarachnoid space.

Detailed explanation-3: -From superficial to deep, these layers are the dura mater, arachnoid mater, and pia mater.

Detailed explanation-4: -The subarachnoid space is a space between your arachnoid mater and pia mater. It’s filled with cerebrospinal fluid. Cerebrospinal fluid cushions and protects your brain and spinal cord.

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