The loss of arterial elasticity with age in particular affects... a. Max heart rate b. End diastolic volume c. Systolic pressure d. Stroke volume e. Diastolic pressure

Q: When ventricular walls relax: a. Mitral valve opens & tricuspid valve closes b. Tricuspid valve…

A: Mitral valve is also called the bicuspid valve  and it connect left Atrium to the left ventricle.…

Q: During diastole: A. the AV-valves are open and the aortic & pulmonary arterial valves are closed. B.…

A: Systole and diastole are part of cardiac cycle. Systole means contraction of heart and diastole…

Q: Afterload is Select one: a. the amount cardiac output must increase during exercise. b. the…

A: The objective of the question is to identify the correct definition of the term 'afterload' in the…

Q: A force that attracts fluid into the capillary from the tissue spaces is Select one: a. venous…

A: The question is asking about the force that pulls fluid back into the capillaries from the…

Q: The major source of compliance for maintaining blood pressure during the diastolic interval flow…

A: When heart pushes blood around our body during systole pressure on the vessels increases which is…

Q: Refer to the figure of the pressures in the cardiac cycle on the right side. Letters indicate time…

A: This Wigger's diagram is used to understand physiology of heart. It explains -  Blood pressure -…

Q: The pulse pressure is a measure of a. the number of heartbeats per minute. b. the sum of the…

A: Blood pressure records two measurements: systolic pressure and diastolic pressure wherein systolic…

Q: The valve located between the right atrium and the right ventricle is thea. aortic semilunar valve.…

A: In humans, the heart has four chambers, two atria, and two ventricles. While the atrium receives…

Q: 45. Which of the following is/are true concerning the opening and closing of thecardiac valves?   A.…

A: The valves of the heart maintain undirectional flow of the blood and prevent its regurgitation in…

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: A blood pressure reading of 145/90 indicatesa. normal blood pressure.b. hypertension.c. hypotension.

A: Blood pressure can be defined as the pressure exerted on the walls of the blood vessels by the…

Q: al fluid hydrostatic pressure (IFHP). b. Net filtration pressure (NFP). c. Blood hydrostatic…

A: Introduction  Excretory system is one of the naturally cleansing system of the human body. It…

Q: The largest cross-sectional area in the total circulation and lowest blood flow velocity is found…

A: Blood vessels are the structures that conduct blood to different parts of the body. The systemic…

Q: All of the followings are correct, except ---------------------. A. The mean blood pressure…

A: Blood is the fluid that transports oxygen and nutrients to the cells and carries away carbon dioxide…

Q: ECG

A: Absence of P waves with a flat baseline is an indication of fine atrial fibrillation.

Q: Which of the following decreases perfusion of a tissue? a. decreased total blood flow b. vasodilator…

A: Perfusion is the path of sap through in the circulatory system or lymphatic system to an organ or a…

Q: During the systolic phase of the cardiac cycle, the heart is. a. contracting b. relaxing c.…

A: We know that The cardiac cycle is defined as the contraction and relaxation of heart muscles due to…

Q: Just after the dicrotic notch on the aortic pressure curvea. the pressure in the aorta is greater…

A: The aortic pressure is the pressure applied by the aorta. It is supposed to be 40mm Hg when the…

Q: Muscle impulses are spread rapidly between cardiac musclecells bya. sarcomeres.b. intercalated…

A: The heart is a muscular organ , located just behind and slightly left of the sternum. The heart is…

Q: The QRS wave of an ECG is produced by. a. depolarization of the atria. b. repolarization of the…

A: ECG or electrocardiogram is a diagram or graph of the electrical activity of heart that is produced…

Q: Which of the following is/are involved in regulating blood pressure? a. heart b. baroreceptors c.…

A: Blood Pressure can be defined as the pressure exerted by the blood flowing in the blood vessels on…

Q: All of the following are true of the anatomy of the heart except A. The epicardium has a serous…

A: The heart is a muscular organ that pumps oxygenated blood to the aorta, which conveys it to the…

Q: cardiac output will increase by a. decreased blood volume and decrease of heart contractility b.…

A: When both ventricles ( left as well as right ) pump some amount of blood in a given time , it is…

Q: Stroke volume is thea. amount of blood pumped by the heart per minute.b. difference between…

A: End-diastolic volume refers to the quantity of blood in the left or right ventricle at the end of…

Q: Cardiac output measures blood ejected from a. both atria each minute b. each ventricle each minute…

A: Cardiac output refers to the volume of blood that is pumped by the heart per unit of time, usually…

Q: It is generally accepted that a relatively low diastolic vascular pressure is more important than a…

A: Introduction The pressure of circulating blood against the walls of blood arteries is known as blood…

Q: The only area of the heart that receives innervation from the brain is called the: A.…

A: Cranial nerves are the part of the nervous system that assists in a variety of functions. These…

Q: The Frank-Starling Law says that stroke volume a. is constant b. increases with deceased blood…

A: Stroke volume refers to the amount of blood ejected by the left ventricle of the heart in a single…

Q: In the aorta, Select one: a. the resistance to blood flow is high, but velocity of blood flow is…

A: The objective of the question is to understand the characteristics of blood flow in the aorta, which…

Q: Given these structures of the conducting system of the heart:(1) atrioventricular bundle (4)…

A: The heart is the muscular organ about the size of our fist located just behind and its notch bit…

Q: During isovolumetric relaxation, the atrioventricular and semilunar valves are: a. open and…

A: Cardiac cycle explains the flow of blood in the heart during a single heartbeat. This helps to…

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: On an ECG, if every other P wave (e.g., every even is, and every odd is not) is NOT followed by the…

A: second degree AV block

Q: Which of the following is/are true concerning the opening and closing of the cardiac valves? A.…

A: Backward blood flow is prevented by the valves. On each end of the two ventricles are flaps that act…

Q: The blood vessels responsible for variably distributing cardiac output among organs in the body are:…

A: Animal physiology is the systematic study of the supporting features, roles, and processes of…

Q: Cardiac output is determined by:   A. Return of blood to the heart and the heart rate B. Strength…

A: The quantity of blood pumped from the heart in 60 seconds is known as cardiac output. The normal and…