What activities of heart are controlled by sympathetic system and parasympathetic system.

Q: Which part of the heart is responsible for initiating and maintainingthe rhythmic activity of the…

A: The heart is a muscular organ that pumps blood throughout the body. It is located in the middle…

Q: Generates electrical impulse that sets rhythm to the heart; the primary pacemaker of the heart. SA…

A: Heart has conductive system which generates and transfer the electrical impulses.

Q: Fill in the blank:  Endings of parasympathetic nerve fibers secrete _______________________, which…

A: The cardiovascular system is responsible for circulating the blood throughout the body so that…

Q: Some people have abnormal cords or bridges of myocardium that extend from atrium to ventricle,…

A: The second most common type of coronary arterial abnormality is the Myocardial bridge. It is the…

Q: heart failure occurs when

A: Congestive heart failure is commonly known as heart failure that refers to a condition in which the…

Q: Which circulation is normally under lower pressure? systemic circulation pulmonary circulation

A: Pulmonary circulation consist of network of arteries, veins, and lymphatics that plays a role to…

Q: What causes heart murmers in diastole and in systole

A: Diastole:It is the phase of the heartbeat when the heart muscle relaxes and allows the chambers to…

Q: The sinoatrial and atrioventricular nodes of the heart are affected by. O only somatic motor nerves…

A: The human heart is an organ that pumps blood through the circulatory system's veins, giving oxygen…

Q: How does the fact that cardiac muscle does not undergo tetanus (as skeletal muscle does) affect the…

A: Tetanus is a disease arose from the infection of the bacteria Clostridium tetani.A tetanic…

Q: The heart beats without extrinsic stimulation from the autonomic nervoussystem. True or False

A: The autonomic nervous system can be defined as the type of nervous system which controls the body…

Q: Damage to what brain area may impair autonomic regulation of heart rate? pons O medulla O midbrain O…

A: The sympathetic and parasympathetic nervous system are the components of the autonomic nervous…

Q: The finest passages through which electrical signals pass before reaching the ventricular…

A: Introduction: The muscle of heart is composed of small cells through which electrical signals are…

Q: Which part of the heart is responsible for the muscular contractions that pump blood through it?…

A: Heart is a muscular organ present in thoracic cavity which helps in blood flow through out the body.

Q: The second heart sound is caused by

A: Answer:  The Lub - Dup sound produced by the heart is basically the closing of the heart valves.

Q: Which of the following occurs during ventricular diastole? Blood returns to the heart Blood is…

A: We know that the Cardiac cycle is a repetitive cycle where a heart performs its functions. This…

Q: Put the progression of the electrical excitation of the heart muscle in the right order Atrial…

A: Circulatory system is a part of body system which is involved in circulation of body fluids like…

Q: A patient entered the local emergency room and had an EKG taken. The attending physician stated that…

A: Purkinje Fibers and Heart Rate: The attending physician's observation about a Purkinje…

Q: Label the following: O Apex O Auricle of right atrium O Auricle of left atrium O Right ventricle O…

A: The heart is an organ made up of muscles situated left side of the breastbone. It plays a vital role…

Q: The volume of blood ejected from the left ventricle in each beat is ventricle. A greater than B…

A: The heart is a highly muscularized, involuntary organ of the body. It has four chambers consisting…

Q: visceral pericardium endocardium myocardium parietal pericardium pericardial cavity The heart is…

A: The human heart pumps blood during the frame thru the vessels of the circulatory system, providing…

Q: An aneurysm in which vessel will be most fatal?     right anterior tibial artery     vena cava…

A: Introduction:- Blood vessels are the channels that carry blood throughout your body. They form a…

Q: There are four valves in the heart, what are these functions?

A: The heart is the vital organ of the cardiovascular system that pumps blood throughout the body. It…

Q: One of heart characteristics that each cell has ability to conduct impulses to the next cell. (Use…

A: Heart is central pumping part body

Q: When the SA node doesn’t function properly, the AV node takes over pacing the heart and produces…

A: In the ecg of the individuals with junctional rhythm , P waves is not seen . This is because the…

Q: Parasympathetic – Slows heart rate because it increases flow through _____ channels and decreases…

A: The parasympathetic nervous system can be defined as the type of nervous system that conserves the…

Q: During a heart attack, the blood flow to cardiac muscle tissue is blocked, and cardiac muscle cells…

A: The heart is a major organ in the circulatory system whose function is to pump blood throughout the…

Q: Which ventricle has the thickest wall? Why is it important for eachventricle to pump approximately…

A: Ventricles can be described as the muscular chamber of the human heart, which helps pump blood into…

Q: Which chamber of the heart has to contract against the greatest afterload?     right ventricle…

A: Afterload is the pressure which heart has to overcome to open the aortic valve and eject the blood…

Q: Myocardial contraction is named _____            Relaxation of heart named ______  What is the unit…

A: The heart is a specialized organ of our circulatory system composed of cardiac muscle tissue. It…

Q: What is the most potent naturally occurring glucocorticoid, and how is its secretion related to that…

A: Glucocorticoids are a class of steroid hormones that are produced in the adrenal cortex. They are…

Q: Fill in the blank:  Parasympathetic nerve fibers that supply the heart make up part of the…

A: According to the body requirements, the heart pumps blood that is variable in volume. During the…

Q: Which of these will increase the heart rate? O sympathetic stimulation of SA node O parasympathetic…

A: The heart has an autorhythmicity trait that allows it to beat without being controlled by the…

Q: Repolarization of ventricular myocardiocytes is caused by ______ the cells through voltage-gated…

A: Repolarisation is caused by the movement of positively charged k+ ions out of the cell. it initially…

Q: When during the cardiac cycle do ventricles contain their maximal amount of blood? At the end of…

A: Cardiac cycle is referred to as the time period between the contraction of atria and the relaxation…

Q: the upper chambers (rooms) pf the heart are known as

A: The heart is the vital organ of the body, located in the middle and front of the chest and slightly…

Q: During what stage or stages is blood being pumped from the atria into the ventricles

A: The cardiac cycle completes in four different stages: They are filling phase, isovolumetric…

Q: How many symptoms of heart attack, stroke, and cardiac arrest do you know of? Do you think you could…

A: Heart Attack, stroke or cardiac arrest occurs when the flow of the blood to the heart is blocked.…

Q: which ventricle ejets more blood

A: Answer.   Considering a few cardiac cycles it is found that left ventricle pumps more blood than the…

Q: perkinje fibers located in O endocardium O myocardium O pericardium serosa non of above O O O O

A: Purkinje fibers are S-shaped fibers are found in the heart. The Purkinje system is composed of…

Q: The cardiac output of each ventricle is the same. Why is this? What would happen if the right…

A: The Cardiac Output is defined as the amount of blood that is pumped out by the two ventricles of the…