1. Explain the Frank-Starling law of the heart.

Q: 25. Compare the contraction of a single cardiac muscle fiber to a skeletal muscle fiber in terms of…

A: Muscle is one of the tissue types in the body that brings about contraction and relaxation. Muscle…

Q: The cardiac output of 70-year-old man at rest is 5.5L / min; mean HR is 85 bpm. Left ventricular…

A: Heart is a pumping structure and is an important organ of circulatory system which helps in sending…

Q: during a procedure, a patient's end diastolic volume was found to be 127mL. The end systolic volume…

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

Q: What effect does a drug have that block the calcium channel in a cardiac muscle cells? What is the…

A: A calcium channel is an ion channel which shows selective permeability to positively charged calcium…

Q: 1. Sue has a resting stroke volume of 72 ml/beat and an average resting heart rate of 70…

A: Heart rate is a product of heart rate (HR) and stroke (SV) and is measured in liters per minute. HR…

Q: Describe the characteristics of coronary blood flow during cardiac cycle. Contrast this cyclic…

A: The heart gets around 5% of its own output in the form of blood, with the bulk (75%) occurring…

Q: 14.The electrical stimulation of cardiac muscle via the conduction system, not the muscular…

A: Electrocardiogram (ECG) is used to measure the changes in the electrocardiograph. One cardiac cycle…

Q: . What is cardiac output? 2. What are the determinants of cardiac output?

A: Heart is a muscular organ that functions to pump blood throughout the body by repeated, rhythmic…

Q: Sketch and discuss the most important waveforms associated to the cardiac cycle and what is the…

A: A sequence of alternating contraction and relaxation of the atria and ventricles in order to pump…

Q: ) After exercising, why do some people return to a normal pulse rate quicker than others?

A: Hello. Since your question has multiple parts, we will solve first question for you. If you want…

Q: Explain the pressure changes which occur during the cardiac cycle and their relationship to the flow…

A: Cardiac cycle - The cardiac cycle is the performance of the human heart from the beginning of one…

Q: 1. Describe the steps in the actión nembrane potential, ion movements and the state of ion channels…

A: Cardiac muscle cells are specialised auto rhythmic cells which can initiate action potential without…

Q: 21. Define Ventricular Tachycardia.

A: Cardiac muscles are the involuntary muscles of the heart. They are concentrated in the myocardial…

Q: heart rate before and after performing an exercise? Why does your heart rate change before and after…

A: Exercises results in both physiological and psychological changes.

Q: Draw a ventricular muscle cell action potential. Describe the changes in membrane permeability that…

A: The second deflection is caused by ventricular depolarization. The QRS complex appears after 0.15…

Q: Discuss the heart contraction on a cellular level, describing the contraction muscle fiber?

A: Introduction: The muscle cells comprise protein filaments, namely, myosin and actin, that slide upon…

Q: 4. Compare the action potentials of contractile cardiac muscle, autorhythmic cardiac muscle and…

A: Introduction:- The circulatory system is sometimes referred to as the blood-vascular system or…

Q: What is the Frank-Starling law of the heart' What is its significance?

A: Venous return is defined as the amount of blood which is formed by the heart every minute and is…

Q: Name the neurotransmitter released from parasympathetic nerve endings and what effect does this…

A: Neurotransmitters are body's chemical messengers used by the nervous system to transmit messages…

Q: What is venous return? Explain how it affects preload.How does preload affect cardiac output? State…

A: An electrocardiogram (ECG or EKG) records the electrical signal from your heart to check for…

Q: 1. You are a lead engineer in a cGMP facility that develops and delivers tissue engineering…

A: Globally, myocardial infarction (MI) is one of the leading causes of death. Loss of cardiomyocytes,…

Q: 1. Identify and color the following in the ECG image below: three P waves three QRS complexes three…

A: The ECG is an electrical representation of the heart's activity. It usually has a characteristic…

Q: 15) The followings are the ECG characteristics of atrial fibrillation,except for() A Disappearance…

A: Atrial fibrillation is the condition when atrial contraction more than 350beat/ minute

Q: Cardio 2 Question 2 Unanswered Which of these phrases accurately describes Starling's Law? Increased…

A: The Starling law, also known as frank-starling law, and the Starling mechanism is related to the…

Q: 3. After standard physical loading in a sportsman it was stated in the first minute of the rest: 1)…

A: Homeostasis is a self-regulating process in the body that maintains a dynamic equilibrium between…

Q: Explaine the factors which determine cardiac output.

A: Cardiac output can be defined as the amount of blood (in ml) pumped out of the ventricles per…

Q: 22. Define Ventricular Fibrillation. Describe what is happening electrically during VF.

A: Dysrhythmias Cardiac dysrhythmia is associated with abnormal electrical impulse conduction…

Q: 9. What are the phases of the cardiac cycle and what occurs during each?

A: The cardiac cycle represents the functioning of the human heart from the resolution of one heart…

Q: Patients with what underlying condition cannot undergo Fick’s method of Cardiac output measurement?

A: Adolf Fick gave the theory for ficks method of calculating cardiac output.

Q: 1. Identify and color the following in the ECG image below: ● three P waves (color blue) ● ● ● ●…

A: ECG refers to the electrocardiography , it is basically the graphical representation of cardiac…

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: List the names and synonyms for all four valves of the heart.

A: Heart is conical muscular organ situated in middle mediastinum of thorax, It pumps oxygenated blood…

Q: Can you please explain how to use this equation to get Flow(ml/min) Blood flow = π  ΔP r4 / ​8Lv

A: The network of capillaries supplies oxygenated blood to the various tissues. The blood rich in…

Q: Explain how to calculate your stroke volume and cardiac output.

A: The human heart is a remarkable organ responsible for pumping blood throughout the body, delivering…

Q: electrocardiogram

A: In ECG T wave represents repolarization of ventricular myocardium. Any abnormality in the T wave is…

Q: Component Amplitude(mV) Duration (s) P wave 0.046 0.07 QRS complex 0.839 0.08 T wave 0.061 0.2…

A: The heart muscle is an involuntary muscle that contracts and relaxes rhythmically to pump blood…

Q: 13. State the channels involved in an action potential in cardiac AUTORHYTHMIC cells, which ion…

A: The heart is covered by a membrane called the pericardium. The cardiac muscle forms the inner…

Q: 1. Determine cardiac output given a heart rate of 70 beats/min and a stroke volume of 0.1 L/beat

A: Cardiac output (CO) is the volume of blood that the heart pumps per minute and is typically measured…

Q: The following measurements were made on two individuals (the values recorded remained stable for one…

A: Venous return is the total volume of blood that returns to the atrium of the heart. Ventricular…

Dissection

Dissection is the process of cutting up the tissue of a dead or live animal or plant, to do anatomical studies and surgical treatments. The purpose of dissection is to learn more about the overall structure of organs and organ systems and thereby understand the physiology of the organism.