Myocardial infarction, or a heart attack, results if there is a lack of oxygen and nutrients brought to the heart tissue. A heart attack would result due to a blockage by arteriosclerosis of the а. coronary veins b. coronary arteries С. c. pulmonary veins d. pulmonary arteries

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: Mac is 13 and has fallen deeply in love with his first sweetheart.  He feels his heart “skip a beat”…

A: The mammalian heart is a complex structure divided into four different chambers, namely the left…

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: Tia developed Rheumatic heart disease when she was 19 years old that caused stenosis of her mitral…

A: Growth of the left atrium has been related to low effects for cardiovascular conditions: Atrial…

Q: Match the following:   ? Prevents backflow into the left ventricle   ?  Prevents backflow into the…

A: Valves are flap like structures which are present in heart and helps in movement of blood in one…

Q: The major baroreceptor(s) used to regulate blood pressure is/are located in… Group of answer…

A: Baroreceptors sense the change in blood pressure and transmit information to the brain so that…

Q: explain the difference between the thickness of the myocardium in the right and left ventricles.

A: The heart is composed of three main layers, each with its own specific functions. These layers are,…

Q: Identify the correct sequence of blood flow through the chambers of the heart.   A "left ventricle,…

A: BLOOD FIRST ENTERS THE RIGHT ATRIUM AND THEN PASSES THROUGH THE RIGHT VENTRICLES. FROM RIGHT…

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: Venous blood from the heart wall enters the right atriumthrough thea. superior vena cava.b. coronary…

A: The type of blood that is in deoxygenated condition and moves from the peripheral blood to reach the…

Q: Which heart valve(s) is/are open during the Ejection phase of the cardiac cycle?   A. Tricuspid…

A: The cardiovascular system of the body is concerned with the circulation of blood rich in oxygen to…

Q: Select the letter of the choice that best completes the statement. The treatment for a heart attack…

A: A heart attack is a medical condition in which there is a blockage of the artery which supplies…

Q: Which of the following anatomical structures is not part of the systemic circuit a. left ventricle O…

A: The cardiovascular system is composed of two main circuits - A. The pulmonary circuit B. The…

Q: Blood flow into the _______________ would ________________if the right side of the heart failed.…

A: Introduction: To supply blood, the heart encloses four chambers. The blood flow cycle is completely…

Q: 2)Which structure is labelled "M"? Aorta Cardiac muscle Inferior vena cava Left atrium Left…

A: The Human heart is a muscular organ located behind the breastbone and situated slightly to the left.…

Q: match the artery to the vein                                                              common…

A: The right common carotid artery arises from the brachiocephalic artery, while the left common…

Q: The heart is located in the chest cavity in the space between the lungs called A. endocardium B.…

A: In multicellular organisms like humans, cavity cab be defined as fluof filled space. There are…

Q: Most blood flowing in all of the following arteries except the _____ is destined to circulate…

A: The fluids that are produced in the body and either circulated within the body or secreted out are…

Q: ECG

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

Q: When the ventricles contract, all of the following occur excepta. closing of the AV valves.b. blood…

A: Ventricles are the larger chambers of the heart which receives blood from the atrium. The right…

Q: Muscles around the arterioles dictates where blood flows in the body…why is this useful?

A: Arteries are referred to as the blood vessels that function in carrying the oxygen-rich blood to the…

Q: Discuss mitral valve stenosis in terms of changes to its structure and function and explain how this…

A: Mitral valve stenosis is a condition in which the mitral valve, which separates the left atrium and…

Q: a. Explain the difference in size and wall thickness of the ventricles. . b. Describe the function…

A: * The ventricles of the heart will have thicker walls than atria because blood is pumped out of…

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…