The pulse pressure is a measure of a. the number of heartbeats per minute. b. the sum of the diastolic and systolic pressures. c. the difference between the systolic and diastolic pressures. d. the difference between the arterial and venous pressures.

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: High blood pressure would be a result of a. a high cardiac output and high peripheral resistance b.…

A: We know that Blood pressure is the hydrostatic pressure of the blood flow on the walls of the blood…

Q: The AV node delay: a. allows the atria and ventricles to depolarize and contract as a unit. b.…

A: The human heart consists of the left and right atria and the left and right ventricles. The heart…

Q: In a blood pressure measurement of 110/70, the number70 is the ________.a. systolic pressureb.…

A: Answer is b.)  diastolic pressure.

Q: An ECG measures a. changes in electrical potential during the cardiac cycle. b. Ca2+…

A: Introduction: ECG or electrocardiogram is a machine that helps analyse the condition of the heart.…

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: an increase of which of the following will increase mean artrial pressure a. venous return b.…

A: The heart's role in any organism is to keep "blood" flowing continuously throughout the body. Blood…

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: When the ventricular walls contract A.  the mitral valve opens, and the tricuspid valve closes. B.…

A: Introduction  Ventricles are the two lower chambers of the heart, located below the atria. The heart…

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: Blood flows faster in a venule than in a capillary because venulesa. have one-way valves.b. are more…

A: The circulation of blood is governed by the cardiovascular system, which has two different circuits…

Q: To get from the right atrium to the right ventricle, blood flows througha. the pulmonary valve.b.…

A: To get from the right atrium to the right ventricle, blood flows through the right AV valve or…

Q: A circulatory pathway in which the blood flows through two capillary beds in series - before it…

A: The circulatory pathways direct proper flow of blood through heart, lungs, and various associated…

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: Erythropoietin is produced by a. the kidneys. b. the liver. c. the lungs. d. the bone marrow.

A: Erythropoietin is a small glycoprotein having a similar structure to growth hormone. Here we will…

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: An increase in mean arterial pressure can result froma. an increase in peripheral resistance.b. an…

A: Mean arterial pressure is defined as the average arterial pressure in one cardiac cycle, which…

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: During atrial fibrillation: O A. The EKG shows no discernable P wave. O B. There is a noticeable…

A: Human heart consists of four chambers: two atria and two ventricles. The left atria receive…

Q: which of the following mechanisms contributes most to the deterioration of myocardial perfusion in…

A: The mechanism that contributes most to the deterioration of myocardial perfusion in patients with a…

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: Identify the TRUE statement (s). There may be several correct answers. A. An increased cardiac…

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

Q: This is used to facilitate the insertion of drainage devices into a venous structure

A: Embalming is the process of preservation of dead remains and bodies.    It involves injection of…

Q: During the period of isovolumic contraction: A. the AV-valves are open and the aortic & pulmonary…

A:

Q: During atrial fibrillation: A. The EKG shows an exaggerated P wave. OB. There is a noticeable…

A: Human heart consists of four chambers: two atria and two ventricles. The left atria receive…

Q: A. begins with closure of the AV-valves and ends with opening of the valves B. begins with opening…

A: There are two types of atrioventricular valves. The mitral and the tricuspid valves, also known as…

Q: An ECG measures a. changes in electrical potential during the cardiac cycle. b. Ca2+ concentration…

A: We can say that ECG or electrocardiogram is a machine that helps analyze the condition of the heart.…

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: 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…

Q: The loss of arterial elasticity with age in particular affects... a. Max heart rate b. End…

A: Vascular ageing- When a person gets older their arteries structure changes they become less flexible…

Q: When the blood pressure of a vessel drops below the critical closing pressure for that vessel,…

A: The question is asking what happens when the blood pressure in a vessel falls below the critical…

Q: During exercise, venous return is enhanced by: A. the operation of carotid arterial and femoral…

A: Venous return is the flow of blood from the periphery back to the right atrium, and it is equal to…