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)
Oh
Once
One
Takes
The
Anatomy
Final
Very
Good
Vacations
Are
Had

Olfactory
Optic
Oculomotor
Trochlear
Trigeminal
Abducens
Facial
Vestibulocochlear
Glossopharyngeal
Vagus
Accessory
Hypoglossal


CNI
olfactory nerve
smell


CNII
optic nerve
vision


CNIII
oculomotor nerve
Pupillary constriction, accommodation, eye movement and eye lid movement


CNIV
Trochlear nerve
Movement of eye down and inward


CNV
trigeminal nerve
Mastication (chewing) and sensation to the face, nose, and mouth


CNVI
abducens nerve
Movement of the eye laterally