Definitions

Question 1

Paranasal sinuses

Answer 1

an air-filled extension of the nasal cavity which is lined ith mucous membrane and include (4) the frontal sinus, ethmoid, sphenoid, and maxillary

Question 2

location of the subarachnoid space

Answer 2

between the meningeal layer of the dura mater and the arachnoid space, filled with CSF

Question 3

Meninges that only extends to the skull

Answer 3

periosteal layer of the dura mater

Question 4

layer of the meninges which extends down to the spinal cord

Answer 4

the meningeal layer of the dura mater

Question 5

Dural venous sinuses

Answer 5

sinuses of the brain between the layers of the dura mater and receive blood from internal vessels and CSF from the subarchanoid space which meet up at the confluence of sinuses in the brain and empty into the internal jugular vein, these sinuses include the cavernous sinus which can receive blood from the valveless facial vein (danger triangle which runs from the upper lip to the ridge of the nose)

Question 6

Ventricles of the brain

Answer 6

a network of CSF filled communicating cavities inside the brain, each contains a choroid plexus (cells which produce CSF)

Question 7

Nerve Supply to Gluteal region

Answer 7

Dorsal plexus: L1-L4 (ventral rami)

Sacral Plexus: S1-S4 (sacral rami)