The role of receptors in controlling heart rate Flashcards
Where are chemoreceptors found?
What are they sensitive to?
They are found in the wall of carotid arteries.
They are sensitive to changes in the pH of the blood that result from CO2 concentration
Where are baroreceptors found?
What is a baroreceptors function?
They are found in the carotid sinus
Baroreceptors sense changes by responding to change in the tension of the atrial wall
What are artificial pacemakers?
What can artificial pacemakers be?
It is a device that uses electrical impulses to regulate the beating of the heart or to reproduce the rhythm of the heartbeat.
Internal or external
What are the two main artificial pacemakers?
permanent or temporary
What are some advantages to a permanent pacemaker?
What are some disadvantages?
Long term, low risk and prolongs life considerably
Requires surgery, quite invasive
What are some advantages to temporary pacemakers?
What are some disadvantages to temporary pacemakers?
Doesn’t require surgery and it is non-invasive
It is only temporary, very short term, doesn’t always work
What does myogenic stimulation mean?
Where do the signals come from?
It means that the heart is caused to move because of signals that originate inside of it.
They come from the SAN
