Heart Rate
What is the range of the normal heart rate?
60-100/min
What is the value of stroke volume?
70 ml/beat
Over which time domain do we call short- term BP regulation?
Seconds to minutes
Long term BP regulation is over which time domain?
Days to weeks to months
The flow of blood is directly proportional to the following?
Pressure difference between two points
In bacterial infection causing fever, what is the type of heart rate, generally?
Tachycardia
By affecting which variable, does increased venous return increase heart rate?
End-diastolic volume
Which is the main regulator of short -term BP?
Baroreceptor Reflex
The principal organ involved in BP regulation is the following?
Kidney
The probability of turbulence is given by the following number?
Reynold's number
When is there bradycardia?
Athletes/increased intra-cranial pressure
According to which law, does increased peripheral resistance reduce stroke volume?
Poiseulle's law
On rising from a sitting position, the baroreceptor reflex is stimulated or inhibited?
Stimulated
The mechanism by which the kidney regulates water and salt in the body is called the following?
Pressure natriuresis and diuresis
Peripheral resistance is highest in which vessels?
Arterioles
What is the variation in heart rate with the respiratory cycle called?
Sinus Arrhythmia
By which pathway, does the sympathetic nervous system increase myocardial contractility?
Gs-adenyl cyclase-cAMP-protein Kinase A pathway
The reflex by which, the heart rate increases if the initial heart rate is slow, by saline infusion is called?
Bainbridge Reflex
Angiotensin II causes vasoconstriction by acting on the following receptors?
AT1
The law for Peripheral Resistance is the following?
Poiseulle's Law
Which is the main reflex driving sinus arrhythmia ?
Bainbridge Reflex
How much volume increase occurs by increase in End-diastolic volume (EDV)?
150 ml
The Bainbridge Reflex acts on the following receptors?
Tachycardia Producing Atrial Receptors (TPARs)
ACE inhibitors cause cough because they act on the following humoral agent?
Bradykinin
The phenomenon, the loss of which, increases systolic BP in old age is the following?
Windkessel effect