Blood supply, meninges and CSF

Describe the dura mater

Touch thick fibrous connective tissue made up of collage and elastic fibres. It is inside the skull fused to the endosteum.

What are the flax Cerebri and tentoriumcerebelli?

Folds of the dura mater, where meninges land endosteal layers separate.

What is in between the dura layers at the falx cerebri and tentorium cerebelli

Large venous sinuses which drain into venous system

What tissues separate the epidural space and Dura mater

Adipose and connective tissue

What is the blood and nerve supply to dura mater

Meninges arteries and trigeminal nerve

Describe the arachnoid membrane

Fine avascular membrane closely associated with the dura mater.

Describe the pia mater

Highly vascular delicate membrane attached to all contours of the brain. It follows blood vessels into tissue and merges with vessel walls.

What is the space between the dura mater and arachnoid membrane

Subdural space, a potential space with lymph like fluid

What is the space between the arachnoid membrane and the pia mater

Subarachnoid space, true space crisis crossed by collagen trabecular and filaments connecting the membranes. CSF and blood vessels run in this space to supply nervous tissue.

Lost the function of CSF (5)

• provides nutrition to CNS tissues

• Acts as a fusion and provides physical support

• Acts s a volume buffer allowing small swelling

• Maintains stable environment for neurones

• Helps movement of neurotransmitters