What is the most sensitive assessment indicator of the neurological system?
Level of Conciousness
What are the components of the CNS?
Brain and Spinal Cord
What are the components of the PNS?
12 pairs of cranial nerves, 32 pairs of spinal nerves, connecting peripheral nerves
What are the components of the somatic/voluntary CNS?
Fibers connecting the CNS w/ skeletal muscles and skin
What are the components of the autonomic/involuntary CNS?
fibers connecting the CNS w/ smooth muscle, cardiac muscle, organs, glands. Innervated by sympathetic and parasympathetic systems (further differentiated by sym and parasym)
Sensory information is transmitted from the sensory receptors to the CNS through...
Afferent fibers (sensory)
THe motor response to the sensory stimulation is transmitted from the CNS to the periphery through the...
Efferent fibers (motor)
Where is CSF found?
Ventricles of brain, subarachnoid space, and spinal cord
What are the functions of CSF?
Shock absorber (can be chemical or biological, by removing debris from destruction of microbes), Removes wast products from cerebrum
What are the normal pressures and volume of CSF?
70-200 mmH20 via LP (connect a manometer to get reading)
**3-15 mmHg in ventricles- ICP (use this for normal pressure)
Volume = 135-150 mL
What does normal CSF contain?
Glucose and Protein
NOT RBCs or WBCs
What are the functions of the cerebellum?
Equillibrium, orientation, locomotion, posture
What are the functions of the brain stem?
Medulla Oblongata- involuntary (swallow, vomit, hiccough, cough, vasoconstriction, respiratrory) and CN IX-XII
Pons- respiratory, CN V-VII, motion, eye response
Midbrain- voluntary motor, some involuntary, CN III-IV
(if you see defecits in cranial nerves you are dealing w/ a brain stem issue)
What are the functions of the reticular formation?
Motor and sensory tracts (excitatory & inhibitory), RAS, wake/sleep
What are the functions of the hypothalamus?
Temperature, ANS, fluid and hunger regulation, pituitary stem, behavior (aggression, pleasure, punishment, sex)