Describe the pressure changes in the atria and ventriclesduring a cardiac cycle.

Q: Describe how the pressure in the left ventricle and in the systemic arteries varies during the…

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

Q: Estimate the ejection fraction of the failing heart at a typical normal end-diastolic volume?

A: Ejection fraction estimation - It is the measurement of the amount of blood pump from left ventricle…

Q: Describe the spread of excitation from the SA node through the restof the heart?

A: In the mammalian heart, the heartbeat originated from the cardiac muscles. The heartbeat originated…

Q: Explain how the heart is a double pump and why this is significant

A: Human heart is situated in the space of thoracic cavity present between two lungs.

Q: Discuss the regulation of cardiac output during exercise.

A: The cells are the primary unit of life. The cells form the tissues which collectively form an organ.…

Q: Draw the pressure changes along the systemic and pulmonaryvascular systems during the cardiac cycle?

A: Along the systemic and pulmonary vascular systems during the cardiac cycle  the pressure which…

Q: Explain how Cardiac output is controlled and affected by the following factors: 1. the atrial and…

A: Atrial reflexes is in action when there is venous return to the heart. Baroreceptors in the superior…

Q: summarize the phases of the cardiac cycle.

A: Introduction The cardiac cycle is defined as the sequential event in the heart which is cyclically…

Q: Describe life-span changes in the cardiovascular system.

A: The heart is a muscular organ that pumps blood through the blood vessels of the circulatory system…

Q: Relate the timing of heart sounds to the ECG waves and pressure changes during systole and diastole.

A: ECG stands for Electrocardiogram. It is the graphical representation of the conduction system and…

Q: (a) Describe how heart contraction and relaxation influence coronary blood flow. (b) Name the major…

A: Coronary circulation(coronary blood flow) is defines as a process of blood circulation where the…

Q: Define cardiac output, describe how it is regulated, and identify factors that affect it.

A: Cardiac muscle tissue can be defined as one of the three types of muscle tissue in our body. Cardiac…

Q: Describe the pathway of electrical conduction of the heart, starting with the SA node. How does…

A: In the heart, the contraction of the heart muscle is promoted by the electrical conduction system…

Q: Describe the pacemaker potential and the myocardial action potential, and explain how the latter…

A: Heart is the major pumping organ in our circulatory system. It has two types of cells namely;…

Q: Describe the causes of the P, QRS, and T waves of an ECG, and indicate at which point in the cardiac…

A: The cardiac cycle represents the event that occurs after the ending of one heartbeat to the start of…

Q: Explain the absence of peripheral pulses in ventricularfibrillation.

A: In the human circulatory system, the heart is considered the central organ that plays a significant…

Q: Describe the effects of sympathetic and parasympathetic neuronal stimulation on heart rate.

A: the effects of sympathetic and parasympathetic neuronal stimulation on heart rate are:

Q: List other factors that affect heart rate

A: Heart rate is the rate at which heart beats per minute. The average adult heart rate is 72 beats per…

Q: Describe the factors that influence preload and afterload, and explain how they affect cardiac…

A: Cardiac output is  defined as a amount of blood  heart pumps in a  minute, and also  it depends on…

Q: Explain the events in a cardiac cycle.

A: The cardiac cycle is referred to as one heartbeat that consists of one cycle of contraction and…

Q: Identify the parts of the cardiac conduction system

A: The heart is the main organ of the human body that pumps oxygenated blood to the whole body and…

Q: Describe the events that occur during one cardiac cycle.

A: The cardiac cycle is a process that occurs in the heart. The process refers to the event that takes…

Q: Describe the cardiac cycle

A: The cardiac cycle refers to all the events or steps that occur from the beginning of one heartbeat…

Q: Describe cardiac output, including the factors involved in its regulation.

A: Our heart can likewise expand its stroke volume by pumping powerfully & expanding the amount of…

Q: Describe one cardiac cycle,beginning with both atria and ventricle relaxed?

A: The cardiac cycle is referred to as one heartbeat that consists of one cycle of contraction and…

Q: define cardiac cycle

A: The cardiac cycle is the process of contraction and relaxation of the heart. The primary function of…

Q: Relate the opening and closing of specific heart valves in each phase of the cardiac cycle to…

A: The highly coordinated sequence of electrical, mechanical, and vascular events constitutes the…

Q: Study the diagram below to identify the pressure relationships which are present during VENTRICULAR…

A: During first part of ejection ventricular pressure rises blood is intensively ejected to the…

Q: Explain the events of the cardiac cycle, and relate the heart sounds to specific events in this…

A: The cardiac cycle is the sequence of events that makes up a heartbeat. Each cardiac cycle has two…

Q: Explain why the SA node normally paces the heart.

A: In human heart, small groups of specialised neuromuscular cells are present within the myocardium.…

Q: Explain how the blood volume in the left ventricle changes throughout the cardiac cycle in response…

A: Answer:  CARDIOVASCULAR SYSTEM : In all multicellular organisms there is a system which transports…

Q: Differentiate heart blocks from PVCs with regardto causes and effects on heart action.

A: Additional cardiac contractions generated by an ectopic center of irritability outside the…

Q: Explain the generation of cardiac action potential. Describe the cardiac conduction system and…

A: Introduction Cardiac action potential includes the changes in the membrane potential across the cell…

Q: Define Cardiac Output, give its relationship with Stroke Volume.

A: Introduction - The heart is a muscular organ the size of a fist that is placed directly behind and…

Q: It is believed that dehydration may lead to a change in cardiac function immediately. Is it correct?…

A: Ans- yes it is correct because the heart is strained as a result of dehydration. When you are…

Q: Describe the control of heart rate during and afterexercise.

A: Heart - heart is a body organ which pumps blood through blood vessel to the circulatory system.…

Q: Relate the EKG waveforms to the normal mechanical events of the cardiac cycle.

A:

Q: Define cardiac output, and explain how it is influenced by both heart rate and stroke volume.

A: The cardiac cycle is the human heart's performance from the beginning of one heartbeat to the…

Q: Describe what occurs in the heart during systole and diastole.

A: The heart is a muscular organ that pumps blood through the blood vessels of the circulatory system.…

Q: Define a cardiac cycle and the cardiac output.

A: Cardiac system or in clinical terms , the cardiovascular system is defined by the entire organ…

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,…