Question

list the three meninges and the two spaces. which of these three is located deepest (closest to the brain)? under which layer does csf circulate? under which of these are the dural sinuses located? where would a subdural hematoma occur if someone got hit in the head?

Answer 1

The pia mater is the innermost meningeal layer, CSF circulates in the subarachnoid space, and the dural sinuses are located under the dura mater. A subdural hematoma occurs below the dura mater and above the arachnoid mater.

Step-by-step explanation:

The three meninges are the dura mater, arachnoid mater, and the pia mater. The two spaces associated with the meninges are the subarachnoid space and the epidural space. The pia mater is the meningeal layer located deepest, resting directly on the surface of the brain and spinal cord. The cerebrospinal fluid (CSF) circulates in the subarachnoid space between the arachnoid mater and the pia mater.

The dural sinuses, which are vein-like structures that carry blood from the brain back to the heart, are located under the dura mater. A subdural hematoma occurs beneath the dura mater and above the arachnoid mater; this can happen when there is head trauma, causing blood to collect in that space.