Neurology anatomy and physiology Flashcards
Pain and temperature sensory receptors
Free nerve endings
C (slow unmyelinated) and A delta (fast, myelinated) fibers
Free nerve endings
Sense dynamic, fine/light touch, position sense. Large myelinated fibers that adapt quickly
Meissner corpuscle
Sense vibration and pressure in deep skin layers, ligaments and joints. Large myelinated fibers that adapt quickly
Pacinian corpuscles
Sense pressure, edges, shapes and position in finger tips and superficial skin. Large myelinated fibers that adapt slowly
Merkel discs
Sense slippage of objects, joint angle change on finger tips and joints. Dendritic endings with capsule that adapt slowly
Ruffini corpuscles
This neurotransmitter is derived from Basal nucleus of Meynert
Achetylcholine
This NT decreases in Alzheimer’s, Huntington. Increases in Parkinson
Acetylcholine
This NT is derived from the Ventral tegmentum and Substantia Nigra
Dopamine
This NT is decreased in depression and Parkinson, and increased in Schizophrenia and Huntington
Dopamine
This NT is derived from Nucleus accumbens
GABA
This NT is decreased in anxiety and Huntington
GABA
This NT is derived from locus ceruleus
NE
This NT is increased in anxiety and decreased in depression
NE
This NT is derived from Raphe nuceus
Serotonin
This NT is decreased in anxiety and depression and increased in Parkinson
Serotonin
What is the organum vasculosum of lamina terminalis
CNS structure that senses changes in osmolarity
What is area postrema
Part of medulla that mediates emesis
Destruction to lateral area of hypothalamus leads to
Anorexia, failure to thrive (loss of ghrelin)
Destruction of ventromedial area leads to
Loss of leptin, obesity
The anterior hypothalamus controls
Cooling, parasympathetic
Posterior hypothalamus controls
Heating, sympathetic
Which three substances are associated with decreased REM and delta wave sleep
Alcohol, benzodiazepines and barbiturates
Treatment for night terrors and sleepwalking
benzodiazepines