Meninges Flashcards
(24 cards)
What are the three layers of the meninges?
Dura mater, arachnoid mater, and pia mater
Which layer of the meninges is the outermost and toughest?
Dura mater
Which layer of the meninges is the middle layer that contains blood vessels and cerebrospinal fluid?
Arachnoid mater
Which layer of the meninges is the innermost and adheres closely to the brain and spinal cord?
Pia mater
True or False: The meninges protect the brain and spinal cord.
True
What is the function of the meninges?
Protect the brain and spinal cord, support blood vessels, and contain cerebrospinal fluid
What is the space between the arachnoid mater and pia mater that contains cerebrospinal fluid?
Subarachnoid space
Which layer of the meninges is the thickest and most durable?
Dura mater
What is the outermost layer of the meninges that is closest to the skull and vertebrae?
Dura mater
Which layer of the meninges is the most delicate and thin?
Pia mater
What is the innermost layer of the meninges that follows the contours of the brain and spinal cord?
Pia mater
What is the middle layer of the meninges that forms a loose sac around the brain?
Arachnoid mater
What is the outer layer of the meninges that is composed of tough, fibrous tissue?
Dura mater
What is the function of the dura mater?
Protects the brain and spinal cord, provides structural support
What is the function of the arachnoid mater?
Cushions the brain, contains blood vessels and cerebrospinal fluid
What is the function of the pia mater?
Provides nourishment to the brain and spinal cord, adheres closely to their surfaces
What is the thinnest layer of the meninges?
Pia mater
Which layer of the meninges is responsible for producing cerebrospinal fluid?
Pia mater
What is the function of the subarachnoid space?
Contains cerebrospinal fluid, provides cushioning and support
Which layer of the meninges is directly attached to the brain and spinal cord?
Pia mater
What is the name of the fluid-filled space between the arachnoid mater and pia mater?
Subarachnoid space
What is the function of the meninges in relation to cerebrospinal fluid?
Contain and circulate cerebrospinal fluid
Which layer of the meninges is the most vascularized?
Pia mater
What are the three layers of the meninges from outermost to innermost?
Dura mater, arachnoid mater, pia mater