Baroreceptor Reflex Pathway Flashcards
Volley of nervous impulses sent to NTS and NTS sends signals to (2)
Heart
Arteries
Tells heart to _
Reduce strength and rate of contractions
Tells arteries to _
Become more elastic
Combined effects of _ will lower blood pressure (2)
Reduced cardiac output
Reduce resistance to blood flow
Baroreceptors reflex acts to maintain blood pressure at the _
Set-point
Set point can be altered like a _
Thermostat
Body alters set point by either effecting pressure at which _
Baroreceptors fire
Affecting threshold pressure at which Baroreceptor fires is known as _
Peripheral resetting
Body resets thermostat by also altering sensitivity of _
Neurons within medulla
Altering sensitivity of neurons within the medulla is known as _
Central resetting
Baroreceptor reflex corrects a rise in arterial pressure by reducing _ of heartbeat (2)
Rate
Strength
Baroreceptor reflex corrects a rise in arterial blood pressure by causing _
Arteries to relax
During periods of intense stress _ suppressed
Baroreceptor reflex
During periods of intense stress baroreceptor reflex suppressed by nerves originating from _
Hypothalamus
