NEETZoologyNeural Control and Coordination
Cerebrospinal fluid (CSF) is present in the subarachnoid space of the human central neural system. Based on the anatomical sequence of the cranial meninges, this space is located between which of the following two layers?
Options
- ADura mater and Arachnoid
- BCranium and Dura mater
- CArachnoid and Pia mater
- DDura mater and Pia mater
Correct answer
C. Arachnoid and Pia mater
Step-by-step solution
The cranial meninges consist of three layers: the outer dura mater, the middle arachnoid, and the inner pia mater. The term "subarachnoid" indicates a position beneath the arachnoid layer. Therefore, the subarachnoid space lies between the middle layer (arachnoid) and the innermost layer (pia mater). The space between the dura mater and arachnoid is the subdural space, while the space between the cranium (skull) and dura mater is the epidural space. Answer: Arachnoid and Pia mater