What is atrial fibrillation?

Q: What are Cardiac Action Potentials?

A: Unlike the action potential in skeletal muscle cells, the cardiac nerve impulse isn't initiated by…

Q: How does the delay of the impulse at theatrioventricular node contribute to cardiac function?

A: The second clump of myocardial specialized conductive cells is called as atrioventricular node. This…

Q: What is the difference between pericardium and endocardium?

A: The heart is a four-chambered muscular organ that is made up of cardiac muscles. The wall of the…

Q: What are the mechanisms that assist in returning venous blood to the heart?

A: The most important transport liquid in the human body is blood. This is circulated from heart to…

Q: How does pulmonary hypertension cause Right-sided heart failure?

A: The cardiovascular system is the one that consists of heart, blood and blood vessels in order to…

Q: What is the functional significance of the difference in thickness between the wall of the aorta and…

A: The aorta is the main artery which carries blood away from heart to the rest of  body.  The…

Q: What is ventricular fibrillation?

A: The heart is a muscular organ that is divided into the left and right sides to prevent the mixing of…

Q: What causes heart murmurs in diastole?

A: The circulatory system, in like manner called the cardiovascular structure or the vascular…

Q: What is mean arterial pressure?

A: The minimum arterial pressure required and maintained during a single cardiac cycle is known as Mean…

Q: How does gravity influence effective blood volume?

A: The cardiovascular system includes heart and blood vessels that work together to pump blood all…

Q: What causes a pulse in an artery?

A: The vascular system or cardiovascular system or circulatory system is the organ system that allows…

Q: What structural features of capillaries allow the exchange of materials between blood and body…

A: Blood is an important body fluid present in humans and other animals that will deliver essential…

Q: What is the importance and the physiology of the cardiac conduction system?

A: Cardiac conduction system is also known as the electrical conduction system of the heart. The…

Q: What is Early Diastole?

A: Initially during the cardiac cycle there is relaxation of both the atria and ventricle and during…

Q: How does blood return to the heart despite the low pressure?

A: Answer: Introduction: The heart is a muscular organ present behind and partially left of the…

Q: What are two major factors that determine pulse pressure?

A: The circulatory framework, additionally called the cardiovascular framework or the vascular…

Q: What is the primary cause of the low velocity of bloodflow in capillaries?

A: The circulatory system is one of the major systems of the human body. The circulatory system…

Q: What are some of the causes of coronary arterial disease?

A: Components of closed circulatory system It consists of heart to pump the blood, blood vessels like’s…

Q: What happens in coronary arterial disease?

A: The coronary artery supplies blood, oxygen, and other essential nutrients to our heart. Here we will…

Q: How does mean arterial pressure differ from systolic pressure and diastolic pressure?

A: Blood pressure is defined as the quantity of force exerted by the flowing blood over the inner walls…

Q: How is local control of blood flow in tissues achieved?

A: Blood is a fluid of the body and it delivers substances like oxygen and nutrients to the cells. It…

Q: How does variation in hematocrit influence the hemodynamics of blood flow?

A: Hemodynamics refer to the factors responsible for blood flow.

Q: Why is there a pause after the atrial contraction andbefore the ventricular contraction?

A: The human heart has four chambers within it. These four chambers are the Right and Left atria and…

Q: What is fibrous pericardium?

A: The heart and the roots of the major heart vessels are enclosed by a membrane known as pericardium.…

Q: What does the normal diastolic pressure is about?

A: Heart is the muscular organ, whose chief function is to pump and circulate oxygenated blood that…

Q: What are five histological features of sinusoidal capillaries?

A: Sinusoidal capillaries are also known as discontinuous capillaries. Such capillaries have open-pore…

Q: Is Atrial Fibrillation a lethal rhythm

A: A human heart have four chambers: upper two atrium and lower two ventricles. All the four chamber…

Q: Why is atrial repolarization not observed in the ECG?

A: ECG stands for electrocardiography. It is a process to produce an electrocardiogram. To check for…

Q: What is the pericardial fluid?

A: The human heart is located in the thoracic cavity between the lungs. It is a hollow, fibromuscular…

Q: What is Cardiac Pacemaker?

A: The heart and blood vessels are the main organs of the cardiovascular system. The heart, which is…

Q: What is the advantage of double circulation?

A: The heart is a muscular organ that is divided into the left and right side to prevent the mixing of…

Q: What happens when the Pulse pressure Increases?

A: Pulse pressure (Pp) is the difference between systolic and diastolic blood pressure (BP). The…

Q: What is vasomotion? What is autoregulation of local bloodflow?

A: Answer: Introduction: Vasomotion controls liquid and nutrient exchange amongst the vascular system…

Q: What innervates the pericardium?

A: The heart is the organ that pumps blood everywhere. This helps in the change of oxygen and carbon…

Q: Pressure changes that occur during the cardiac cycle are responsible for what two physiologic…

A: The cardiac cycle is the time interval between atria contraction and ventricular relaxation. Fluids,…