QuestionSBA
QuestionChoice
Incorrect. The falx cerebri is a fold of dura mater between the cerebral hemispheres, extending from the crista galli of the ethmoid to the occipital bone. In this diagram, the dura mater, and therefore the falx cerebri, has been removed.
10009158
d
Falx cerebri
QuestionChoice
Correct. The arachnoid mater is a thin, non-vascular layer of the meninges between the dura and pia mater. It is connected to the cranial pia mater by several fibrous strands that cross the subarachnoid space, which is filled will cerebrospinal fluid (CSF). In this diagram, the arachnoid mater is still present and visible as the most superficial structure overlying the brain
10009155
a
Arachnoid mater
QuestionChoice
Incorrect. The dura mater is a dense connective tissue layer of the meninges that forms the outermost meningeal layer with a shiny appearance. In the head, the dura has an outer endosteal layer that is continuous with the pericranium, and an inner meningeal layer. Dural venous sinuses are the collection of venous blood between these two dural layers. In this diagram, the dura mater has been removed.
10009156
b
Dura mater
QuestionChoice
Incorrect. The tentorium cerebelli is a fold of dura mater between the cerebellum and posterior parts of the cerebral hemispheres. In this diagram, the dura mater, and therefore the tentorium cerebelli, has been removed.
10009159
e
Tentorium cerebelli
QuestionChoice
Incorrect. The pia mater is a highly vascular layer of the meninges that forms the innermost meningeal layer and directly covers the brain and spinal cord, traversing down the sulci of the brain. In this diagram, the arachnoid mater is still present overlying the pia mater.
10009157
c
Pia mater
Concept
Chapter
2693
5314
Meninges
Topic
196
Neuroanatomy
14378
Picture
1738
33 - Meninges (arachnoid).png
images/vi9pmecn1682950645293.jpg
images/vi9pmecn1682950645293_256.jpg
images/vi9pmecn1682950645293_512.jpg
mRgOFQQWWHN4B6iId4d5mCd4cHEI
Topic
196
Neuroanatomy
Identify the most superficial structure overlying the brain in the following image.

[lightgallery]
a