Tag: CSIR NET Life Science Previous Year Questions and Solution on Cardiovascular System

The activities of baroreceptors present in the carotid sinus are carried by the afferent fibers of neurons located in (1) nodose ganglion (2) geniculate ganglion (3) petrosal ganglion (4) spiral […]

Which one of the following does NOT occur due to stimulation of baroreceptors? (1) Bradycardia (2) Hypotension (3) Venodialation (4) Vasoconstriction   What Happens When Baroreceptors Are Stimulated? Baroreceptors are […]

Which one of the following changes will occur in the cell membrane of nodal tissue of heart, which results in an increased heart rate due to stimulation of sympathetic nerves? […]

The “Mayer waves” in the blood pressure originate due to (1) systole and diastole of ventricle (2) inspiration and expiration (3) reflex oscillation of neural pressure control mechanisms (4) Bainbridge […]

The blood forced into aorta during systole sets up a pressure wave that travels along arteries (arterial pulse wave). The following figure depicts the pressure wave recorded from an artery […]

The changes in left atrial, left ventricular and aortic pressure in a cardiac cycle are shown below in the figure Given below are the events of cardiac cycle (column A) […]

The time taken for atrial systole and diastole in a normal heart are tas and tad seconds, respectively. If ventricular systole takes tvs seconds, calculate the ventricular diastolic time (seconds) […]

For a normal heart, the time taken for atrial systole and diastole are As and Ad seconds, respectively, while the same for ventricular systole and diastole are Vs and Vd. […]

The action potential recorded from pace maker tissue (SA/AV node) of mammalian heart is shown in the following diagram: On the basis of mechanism of generation of action potential in […]

The following statements are made with reference to the neural connections of cardiac tissues and the functions of these nerves on heart in adult humans: A. The right vagus nerve […]