What is autorhythmicity? Describe how nodal cells function as autorhythmic cells to serve as the pacemaker of the heart.

Q: Why do we need to prevent the decompensated state in patients with heart failure?

A: Decompensation is any functional decline of a system or structure which was operating earlier with…

Q: write the name of each part of the heart next to the number and mark the blood flow with red arrows…

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

Q: The right and left atria of the heart look alike and perform similar functional demands. The right…

A: Heart pumps blood to the whole body parts through a network with the help of arteries and veins. It…

Q: Describe the events leading up to contraction in a cardiac contractile cell. (Where does the…

A: Cardiac muscles are similar to skeletal muscles with a few differences:-a) Contraction is…

Q: A 43-year-old woman has congestive heart failure after a myocardial infarction. Before the…

A: Cardiac output (CO):- It is the amount of blood that is pumped by the heart (ventricles) per unit of…

Q: What is the mechanism behind the action potentials in the pacemaker cells?

A: A random, propagating, transitory and fast change of the muscle or nerve cell's resting membrane…

Q: In ECG, P and QRS waves represent what types of heart electrophysiological activity? Draw and speak.…

A: The circulatory patterns are of two types - open or closed. The open circulatory system is present…

Q: What is the back-up pacemaker of the heart

A: The cardiac muscles of the heart contract after they receive impulses from the pacemaker of the…

Q: Explain two reasons why the heart is referred to as a double pump.

A: The circulatory system consists of the heart, the blood vessels and the blood. The heart is the…

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: А In the image above, the dotted line represents a normal pacemaker potential. Describe the steps…

A: The heart is a major muscular organ of the cardiovascular system that is responsible for pumping the…

Q: Junctional Tachycardia is divided into two categories, dependant on rate. Name the categories and…

A: The Heart is a vital part of the body, it supplies the blood to the various body part, organs. It is…

Q: What are the pacemaker cells of the Heart and their normal heart rates?

A: Rhythmicity is the ability of a tissue to produce its own impulses regularly. It can also be called…

Q: Attempt 1 > Next Up: Submit Assignment Add Comment Draw a circle. Around that circle, label the…

A: Introduction :  Cardiac cycle refers to the order of events that take place when the heart beats. It…

Q: In the figure below on the left, label the P, QRS and T waves. Describe what is happening in the…

A: The electrical activities of heart are traced with the help of electrocardiogram. Under normal…

Q: Explain the term isovolumetric ventricular contraction?

A: The cardiac cycle in animals is the result of the atrial and ventricular contraction and relaxation…

Q: ifferentaite between RBBB and brugada syndr

A: Right bundle branch block(RBBB) is electrocardiogram finding occurs his- Purkinje system and…

Q: Give a detailed mechanism of action of a name drug or agonist that results in positive inotropic…

A: Positive inotropy refers to the increase in the force of contraction of the cardiac muscle. One of…

Q: Define how cardiac output is calculated, and what it can tell you about heart function and metion…

A: Due to our answering policy, we can only answer one question at a time. Therefore, please repost the…

Q: Describe the action potential of an autorhythmic cell in the heart. a) Indicate how the opening and…

A: Answer 1- the opening and closing of each ion channel affects the membrane potential of the cell can…

Q: 1)An increase in total peripheral resistance, all else remaining the same, will cause an increase in…

A: "Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Why is the cardiac action potential propagated more slowly in an AV node cell then in an atrial or…

A: Impulse conduction occurs by the depolarization that results into action potential. It is initiated…

Q: 29. 30. State the significance of the longer action potential in a cardiac CONTRACTILE cell. State…

A: The myocardial contractile cells comprise the mass amount of the cells in the atria and ventricles.…

Q: What causes the pacemaker cells of the SA node to trigger an action potential?

A: The heart is made up of cardiac muscle. It contains a network of specialized cardiac muscle fibres…

Q: If a heart lacked gap junctions, an organ-level contraction would occur.True/False

A: Cardiac muscles are the striated, involuntary, and branch muscles with a characteristic feature of…

Q: Outline the mechanisms by which pharmacological agents act to prevent or stop cardiac arrhythmias.

A: Heart is the main organ of the circulatory system that supplies pumps to all parts of the body. The…

Q: Define the terms depolarization and repolarization with respect to heart’s activity.

A: Cardiovascular action is a short-term change in voltage i.e. the power of the membrane throughout…