Explain how Cardiac output is controlled and affected by the following factors: 1. the atrial and ventricular reflexes 2. the autonomic nervous system 3. hormones 4. blood ion concentrations 5. emotions

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: Consider the equation cardiac output (CO) = stroke volume (SV) X heart rate Which of the following…

A: Afterload is the pressure the heart must work against to eject blood during systole. When…

Q: Explain how an action potential occurs in cardiac contractile fibers.

A: The automatic rhythmicity of the heart is its ability to contract spontaneously and at regular rate.…

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: Explain the electrical and mechanical events in the cardiac cycle, including their relationship to…

A: The sequence of events performed by the heart from one heartbeat to the commencement of next is…

Q: Between 30 and 80 years of age, the cardiac output decreases by about A. 10 percent B. 20 percent C.…

A: Cardiac output is defined as the quantity of blood pumped out of the heart through the circulatory…

Q: Define the term vasoconstriction?

A: Blood vessels including arteries, capillaries, and veins can constrict and dilate to facilitate body…

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 that main factors that control heart rate?

A: We know that, Carotid arteries carry blood from the heart to the brain. They branch off from the…

Q: Left ventricular output is generally the same as right ventricular output. If right ventricular…

A: On an average, 70 ml of blood is pumped every beat (stroke volume) and about 5000 ml every minute…

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: Discuss the relationship between Ventricular end-diastolic Volume and Stroke Volume?

A: Cardiac output (CO) is the volume of blood pumped by the heart through the systemic circulation. It…

Q: 6. The diagram shows stroke volume as a function of right atrial pressure. The solid curve shows…

A:

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: a)How is one-way flow through the heart achieved and What are the stages of the cardiac cycle and…

A: The cardiac cycle is a function of the human heart from the beginning of the heartbeat to the…

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: Imagine that you are feeling very anxious as you walk to the podium to deliver a speech. If your…

A: Ans: Cardiac output: The cardiac out put is the amount of blood pumped by heart to different organs…

Q: Which of the following interventions will increase cardiac stroke volume? increased activity of…

A: Stroke volume: The quantity of blood discharged from the ventricle during each cardiac cycle is…

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 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: Draw a normal ECG pattern. Label and explain the significance of its deflection waves.

A: Electrocardiogram (ECG) is diagnostic technique that is used to monitor the electrical activity of…

Q: There are a number of drugs that are prescribed to patients with heart failure in an effort to…

A: Inotropic agents are those that modify the force of contraction of the heart. They can be of two…

Q: Can you please explain in detail :  is the ventricular afterload a determinant of cardiac…

A: Cardiac Output- This is the process in which blood volume used to ejected by the heart/ unit time.…

Q: In the cardiac cycle, the occurrence of S, is most likely indicated at which of the following…

A: A test to assess the heart's electrical functioning is called an electrocardiogram, or ECG.  The…

Q: describe the issues associated with left side heart failure, how does it affect pulmonary blood…

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

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: All of the following are correct about the isovolumetric contraction, except  ____________.…

A: Isovolumetric contraction is that phase of cardiac contraction in which there is no appreciable…

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 cardiac function by the autonomic nerves

A: ANS ( Autonomic Nervous system ) is responsible for controlling many physiological functions…

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: 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: Which of these phrases accurately describes Starling's Law? Increased arterial pressure A decreases…

A: Closed circulatory system is a type of circulatory system in which blood flows inside the blood…

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

A:

Q: below are a number of scenarios. Please determine and explain how each will impact cardiac output.…

A: Cardiac output is the product of heart rate and stroke volume and it is measured in liters per…

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: Why must this change occur? (in reference to how does the heart rate differ before and after…

A: The process of circulation or internal transport is carried out by the pumping organ of the body,…

Q: Give answer from image shown.

A: The cardiac physiology is defined as the study of the function of the heart that is healthy and…

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…