Regulation Of Blood Pressure Flashcards
How do you calculate cardiac output
Blood flow volume / time
Or
Heart Rate x Stroke Volume
What is end systolic volume
Volume of ventricle at the end of the contraction
What is End Diastolic Volume
Volume of ventricle before the contraction
What is systole
Contraction
What is Diastole
Relaxation
How do you calculate Stroke Volume
End Diastolic Volume - End Systolic volume
How do you calculate Mean Blood Pressure
Cardiac Output x Total Peripheral pressure
What is total peripheral resistance
Amount of force exerted onto the blood due to constriction or dilation of blood vessels
What is atrial blood pressure measured in
mm/Hg
What is maximum arterial blood pressure known as
Systolic blood pressure
what is Diastolic blood pressure
Minimum arterial blood pressure
Why do smaller mammals have a higher heart rate
Vessels are a lot smaller, so have much more pressure. So the heart rate needs to be higher in order to pump the blood
What do baroreceptors detect
Change in blood pressure
What occurs to baroreceptors when pressure increases
Receptor stretches, so increases action potential firing rate - sends inhibitory message to the brain to decrease the blood pressure
Where is the most essential baroreceptor found
In the carotid artery
