Expalin The Layers Of The Meninges Flashcards
How many layers of membranes are there in the meninges?
There are three main layers within the meninges.
What are the 3 main layers of the meninges?
The three main layers of the meninges are: - The Dura Mater. - Arachnoid Mater - Pia Mater.
Where is the dura mater?
The dura mater, attaches to the inside of the cranial cavity and is the outer most layer of the meninges.
What is the dura mater made up of?
The dura mater is made up of fibrous, tough, white connective tissue and has many blood vessels and nerves.
Where does the Dura Mater extend to?
The dura mater extends inwards toward the brains lobes to form protective partitions.
What are the two fibrous connective tissue layer?
- Periosteal dura mater. - Meningeal layer.
Where does the periosteal dura mater extend to and what does it attach to?
It does not surround the spinal cord, and attaches to the inner surface of the skull.
What does the meningeal layer cover?
The meningeal layer actually covers the brain, continues as spinal dura mater in the vertebral canal.
FACT CARD: Membrane around the spinal cord has epidural space separating it from the vertebrae. epidural space contains loose adipose and connective tissues, protecting the spinal cord. Arachnoid mater is web-like.
The subdural space is a narrow serous cavity that contains a fluid film. The subdural space is a narrow serous cavity that contains a fluid film.
FACT CARD: Pia Mater A thin layer has many blood vessels and nerves that nourish the brain and spinal cord. Pia mater is closely aligned with the surfaces of the organs. It is comprised of many tiny blood vessels and delicate connective tissues.
Pia mater is bound tightly to the brain and its convulsions. Small ragged bits of Pia mater are briefly carried by small arteries entering the brain.
Label The Meninges
