Heart/Circulation

In the heart, one way traffic of blood is maintained by _____ (#) valves.

When the valve flaps become stiff,_____ (disease) occurs.

Influx of Na ions into muscle cell causes the _____ of action potential.

The actual spike of the potential is due to influx of ______ ions.

Excitation sequence in the heart is started by_____.

Ectopic focus can be caused by _______.

______ transports cholesterol to tissue cells.

Norephinephrine______blood vessels.

Incompetent valves making veins dilated and torturous are called _____ veins.

Histamine ______ blood vessels.

Heart is covered by a double walled fibro-serous sac called ______.

Hyposecretion of pericardial fluid leads to_____.

Walls of atria has combo like muscles called _____ muscles.

Intratrial septum has a depression called _______.

Right ventricle pumps blood to_________.

Internal walls of ventricle has muscular ridges called ______.

The valve which has 3 cusps is _______.

The valve which resembles a Bishop miter is _______.

Left ventricle pumps blood to the ______.

______ are white collagen cords attached to the valves also called as heart strings.

Deficiency of blood delivery to myocardium results in _______.

Prolonged coronary blockage leads to _____.

Resting membrane potential of cardiac muscle is ______ mv.

Cardiac muscles are different from striated muscles by having a distinctive feature_______.

Resting stage of action potential is facilitated by influx of ______ ions.

Irregular heart rhythms leads to _______

Irregular contractions of the heart are called _______.

Epinephrines cause ______ in skeletal and cardiac muscle.

The smallest wave of a normal ECK is _____ wave.

Ventricular repolarization leads to formation of ______ wave.

Systole refers to _____phase of the heart.

Diastole refers to ______ phase of the heart.

The heart sounds Lub-Dup are the sounds associated with ______ valves.

If Vagus nerve connection to the heart is severed, the heart beat will ______.

Unidirectional valves are generally present in ______.

Tunica ____ layer is thicker in veins when compared to arteries.

Heart muscles receive oxygen from _____ circulation.

The opening between the two atria and the fetus is called ______.

Food lipoprotein that removes cholesterol from vessels and carries it to the liver is ______.

Difference between the systolic and diastolic pressure is called ______.