hypertension Flashcards
where are sympathetic preganglionic neurons located?
interomedial cell column
where are parasympathetic preganglionic neurons located?
medulla, midbrain, sacral s.c.
are the neurons that control respiratory system apart of the ANS?
NO!
These are classic motor neurons
traube hering waves
sympathetically mediated fluctuations in blood pressure
3 classes of motor neurons that drive respiratory muscles
abdominal (push air out)
phrenic (diaphragm)
thoracic
intrathoracic pressure when air goes in?
decreases
herring-broyer reflex
stretch receptors
breathe in = increased activation
send to NTS = switched off
contraction of diaphragm
increase HR, increase VR, decrease intrathoracic pressure
C1 neurons
catecholimergic
in RVLM
constrict blood vessels
C1 inhibition
decrease sympathetic activation