NURS 231 Pathophysiology Module 6Complete Exam Questions And Answers Graded A+

NURS 231 Pathophysiology Module 6Complete Exam Questions And Answers Graded A+ List the 2 major divisions of the nervous system CNS PNS List the structures found in CNS brain and spinal cord List the structures found in PNS spinal nerves, cranial nerves, and ganglia that are outside of the CNS. what are the 3 meninges dura mater arachnoid layer pia mater pia mater -innermost layer -thin and delicate -contains surface level blood vessels that perfuse the brain and spinal cord arachnoid layer -second layer -encases the entire CNS -delicate, nonvascular, and waterproof subarachnoid space Cerebrospinal fluid (CSF) circulates in an area just below the arachnoid layer called the subarachnoid space dura mater -third layer -strong, continuous connective tissue sheath -provides the brain and spinal cord with most of its protection Describe how CSF is produced choroid plexus (Specialized ependymal cells) project into the ventricles and produce CSF CSF function -serves as a cushion for the brain and spinal cord protecting them from outside physical force -maintains a constant ionic environment that allows for the diffusion of essential nutrients, electrolytes, and metabolic waste products into the extracellular fluid surrounding the CNS neurons cranial nerve memorization trick (CNI-CNXII)