A Myocardial Infarction is defined as: a. Chest pain that usually starts with physical exertion and is relieved by rest. b. A decreased amount of oxygen available to the tissue cells, due to decreased blood supply. C. Death of part of the cardiac muscle caused by a blockage in on or more of the coronary arteries. d. Chest pain that is not relieved with rest or nitroglycerin; usually lasts longer than 30 minutes.

Q: A blockage in the right internal carotid does not necessarily cause a loss of blood supply to the…

A: The carotid arteries are important blood vessels of the neck that deliver the face, neck, and brain…

Q: Compared to the ventricles, the atria ____.   A do not contract as many times per minute   B…

A: It also removes waste products from the body. It has three components: blood, heart and the blood…

Q: The vessels that carry oxygen to the myocardium are called __________.   A pulmonary arteries   B…

A: Blood is the body fluid that flows in tube-like structures known as vessels and functions in the…

Q: Contraction of the smooth muscle layers of the arterioles a. increases the frictional resistance…

A: The different types of blood vessels in the human body are arteries, arterioles, capillaries,…

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 obturator vein drains deoxygenated blood from the hip joint and medial thigh into the    (A)…

A: Introduction :- The main function of veins is to collect deoxygenated blood from the different body…

Q: Which structure is labelled "H' questions. Aorta Black arrows indicate direction of blood flow Blue…

A: H   =   Cardiac muscle   A = superior Vena Cava B=  Aorta C  = Right pulmonary artery        ,…

Q: Endocarditis is an inflammation of which portion of the heart? a. pericardium b. endocardium c.…

A: Heart is an organ that pumps blood and is originated from mesodermal tissue. Heart is exclusively…

Q: Which of the following statements is true?a. The left and right common carotid arteries bothbranch…

A: Arteries and veins are the two essential components of the circulatory system. Arteries carry…

Q: Which of the following would be most likely to cause pulmonary congestion?   A failure of the right…

A: Pulmonary congestion is a condition of fluid accumulation occurring in the lungs which leads to…

Q: Which condition would cause a diastolic murmur?   A regurgitation of blood through an incompetent…

A: Diastolic murmur refers to the sound that occurs for some period during diastole. The diastolic…

Q: Reduction in the lumen diameter of a blood vessel as the smooth muscle contracts is known as

A: The blood vessels are highly regulative structures that relax and contract whenever required to…

Q: The atrioventricular valves open because ______.   A relaxation of the ventricles causes the…

A: Atrioventricular valves These are the valves which connect the atrium to the ventricles. There are…

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

A: Abnormality in the electrical rhythm of the heart is referred to as a conduction defect of the…

Q: After passing through the inferior vena cava blood passes through the ____.   A coronary sinus   B…

A: The cardiovascular system or circulatory system is comprised of blood pumping muscular organ, heart,…

Q: What valve is located between the left atrium and left ventricle? a-Tricuspid valve b-Bicuspid valve…

A: Heart is a muscular organ. Heart pumps blood, it has four chambers having two atrium and two…

Q: Standing for a prolonged period of time can cause ... a. Decline in venous return  b. A drop in…

A: Venous return is the flow of blood from peripheral regions to back to right atrium . Factors which…

Q: Individuals with Marfan Syndrome can have a weakened aorta and be at risk for an aortic aneurysm or…

A: Marfan syndrome is genetic condition in which there is a defect in gene, which produces protein,…

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: A) Name the blood vessel and B) Identify the valve A B A) Aorta; B) Aortic Semilunar valve A)…

A: Heart situated in the left thoracic cavity in the cardiac notch.

Q: A child has chronic strep throat. If this condition is not treated, what heart disease can occur?…

A: The respiratory system is a network of tissues and organs that help an organism to breathe. In…

Q: ne symptom of right ventricular failure would be _____.   A difficulty breathing when lying in the…

A: The right ventricle moves deoxygenated blood from the heart back to the lungs to be resupplied with…

Q: Stable angina is defined as: a. Chest pain that usually starts with physical exertion and is…

A: Cardiac physiology plays a critical role in the appropriate perfusion of organs in our body with…

Q: Which of the following statements is true about the SA (sinoatrial) node? a. The action potential…

A: The sinoatrial node ( SA node ) is a group of cells located in the wall of the right atrium of the…

Q: The most common disorder affecting the heart and blood vessels is ? A. arrhythmia B. Hypertension…

A: There are different types of abnormalities found in the function of heart and in the circulation of…

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

A: The term blood pressure is used to describe the pressure exerted by the blood on the blood vessel in…

Q: A patient has been in a serious car accident and is hemorrhaging. Which of the following changes…

A: The heart is a muscular, mesodermally derived organ. It pumps the blood and circulates it in the…

Q: Which of the following forms of shock occurs as a result of expansion of the vascular compartment?…

A: A shock is a medical condition caused by a sudden drop in blood flow in the body. It can be caused…

Q: a)What is the relevance of the strep throat infections?  b). What does the elevated left atrial…

A: Our Heart remains the most vital organ in our body continuously pumping out nutrient-rich blood to…

Q: When the nature of an artery changes from elastic to rigid because of changes in the walls, not the…

A: Arteries are blood vessels that carry oxygenated blood away from heart. There are few exceptions…

Q: You are a staff nurse who is assigned to give a bed bath for a client with Deep Veins Thrombosis…

A: Deep Vein Thrombosis It is the formation of blood clot in the deep vein of the body. Causes: Trauma…

Q: A patient hospitalised with aortic stenosis has activity intolerance related to insufficient oxygen…

A: Aortic stenosis is one of the most frequent and severe valve diseases. The aortic stenosis leads the…

Q: A membrane called the _____ covers the heart. A membrane superficial to this membrane is the _____.…

A: The pericardium is the thin sac-like covering of the heart. It lubricates the heart and is required…

Q: Which of the following would not increase Cardiac Output? A. increase blood epinephrine…

A: The amount of blood pumped by the ventricles in 1 minute is measured in terms of cardiac output…

Q: Prolonged pressure on the skin causes reddened areas at the point of contact due to: Select one: a.…

A: A pressure ulcer is also known as bed sores or pressure sores is an injury in the skin and…

Q: Which of the events below does not occur when the semilunar valves are open?   A Ventricles are in…

A: The heart valves regulate the blood flow into and out of the heart. The normal human heart contains…