Describe the functional differences in the effects of the sympathetic and parasympathetic divisions of the autonomic nervous system on the activity of the heart.

Q: Describe the autonomic innervation of the heart.

A: The heart is innervated by sympathetic and parasympathetic fibres from the autonomic branch of the…

Q: Describe the heart’s pacemaker and internal electrical conduction system.

A: The heart can be defined as the muscular organ which is about the size of a fist and is situated…

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: 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: Define events associated with period of ventricular filling , ventricle systole and ventricular…

A: The events that happen during a single heartbeat is known as the cardiac cycle. The duration of a…

Q: Describe and analyze the portions of an EKG. Describe the effects on the different chambers of the…

A: A human heart is 4 chambered mascular organ. Its present inside chest and its similar to a fist in…

Q: Discuss the Cardiac response to Autonomic Nervous System Changes?

A: The nervous system is a highly complex among different organ systems in animals. By transmitting…

Q: Summarize the effects of the autonomic nervous system on the heart.

A: The functioning of heart is controlled by Autonomic nervous system in many ways

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: 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: Define the term isovolumetric ventricular relaxation?

A: The term isovolumetric ventricular relaxation (IVR) is related to the cardiac cycle. The cycle…

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: Define each of the following external features of the heart: auricle, coronary sulcus, anterior…

A: The heart is an organ that pumps blood through the arteries. The pumped blood carries oxygen…

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 mechanisms that increase the cardiac output during exercise and that increase the rate…

A: When a person is exercising there are various circulatory changes that occur in his/her body. The…

Q: Describe the flow of blood from the heart through all major parts of the body

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

Q: Trace the pathway of blood flow through the heart, and describe the major factors that ensure…

A: the blood vessels are organized into two different circulatory routes- SYSTEMATIC AND PULMONARY…

Q: Identify the structures of the heart and explain the function of each part.

A: Structures of Heart are chambers, valves, arteries, and veins. They function to receive and pump…

Q: Describe the anatomy of movement of the wave of cell depolarization throughout the heart during the…

A: The cardiac cycle:It is comprised of a whole relaxation and contraction of both the atrium and…

Q: Define the terms contractility, preload, and afterload, and explain how these factors affect the…

A: Ans: Cardiac output: The heats efficiency is calculated by the volume of blood it pumps to the…

Q: Describe the components of the left atrioventricular valve.

A: The heart has four chambers: right atrium, right ventricle, left atrium, and left ventricle. The…

Q: Number of double circulations completed by the human heart per minute under resting conditions is

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

Q: Explain the Frank-Starling law of the heart

A: The heart receives the blood through atrial chambers and it pumps down to the ventricles and thereby…

Q: Explain why it is more efficient for contraction of the ventricles to beginat the apex of the heart…

A: To answer this question we should have knowledge of Physiology.

Q: Name the major branches of the heart.

A: The heart is the blood-pumping organ in the animals. It pumps blood via the blood vessels of the…

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: 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: Name the different chambers of the heart and describe their physical characteristics.

A: Anatomy is the branch of biology that deals with the study of the structure of organisms and their…

Q: Name the blood vessels that supplies the walls of the heart with oxygen.

A: The heart consists of four chambers namely, right atrium, left atrium, left ventricle, and right…

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: Explain two causes of left-sided heart failure, one relatedto the heart and one systemic

A: Heart failure is sometimes associated with pulmonary or peripheral congestion and characterized with…

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: Describe the spread of the action potential through the heart’s conduction system.

A: A transient shift in voltage (membrane potential) across the cell membrane of heart cells is…

Q: Explain the mechanism of the contractions of the heart and how it is regulated?

A: The heart is a muscular organ that is divided into four chambers: Left auricle (LA), right auricle…