describe why arteries that are no longer stretchy can cause the heart muscle to wear out and fail * O

Q: Which of the following is unique to cardiac musclecells?a. Only cardiac muscle contains a…

A: The cardiac muscles show the characteristics of both smooth and striated muscles. The cells of…

Q: Explain why an incompetent valve reduces the efficiencyof the heart contraction.

A: The organ of the mesodermal origin-the heart is primarily accountable for blood pumping. Repeated…

Q: Briefly outline the design of the heart. Why is the heart often called “two pumps in one”?

A: The heart is a muscular organ that is divided into the left and right sides to prevent the mixing of…

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: Maximum aortic pressure during the cardiac cycle is called pressure

A: The human heart is a muscular organ which pushes blood into the circulatory system's arteries and…

Q: What is the largest artery in the heart? (where blood leaves the heart) A) Pulmonary VeinB)…

A: An artery is a blood vessel that carries blood way from the heart to the other parts of the body.…

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

A: The heart is a pumping organ that provisions or supplies all tissues and organs of the body with…

Q: compare and contrast the difference between, right, left, and biventricular heart failure. Explain…

A: Heart failure occurs when the body is unable to pump enough blood to supply the required nutrients…

Q: Describe the pacemaker potential and the myocardial action potential, and explain how the latter…

A: Heart is the major pumping organ in our circulatory system. It has two types of cells namely;…

Q: List the arteries that transport blood away from the left ventricle of the heart to the major areas…

A: The heart pumps the blood which is rich in oxygen and the lungs which are located sideways helps the…

Q: When a person engages in strenuous, prolonged exercise, a. blood flow to the kidneys is reduced.b.…

A: Exercise is very important for the body. It proves flexibility in the body, improves the postures,…

Q: Make predictions about the functions of differentblood vessels based on their structures.

A: Blood is a fluid present in humans and animals that aid in transporting essential substances like…

Q: Explain why veins are the only blood vessels thatcontain valves.

A: Veins are the blood vessels that carry blood from tissues back to the heart. The veins carry…

Q: Describe blood flow through the coronary arteries.

A: Coronary arteries are the blood vessels of coronary circulation that transport oxygen to the heart…

Q: Explain why empty veins collapse while empty arteries do not.

A: The arteries are blood vessels carrying oxygen-rich blood to every region of the body. The veins are…

Q: Explain why the structure of the veins is different from that of the arteries.

A: CRITERIA                                   ARTERY                           VEIN…

Q: Explain pulmonary and Aortic circulation in man.

A: Introduction   The circulatory system is the system that contains the heart and the blood vessels…

Q: Blood flow in the coronary circulationa. increases during systole.b.increases during…

A: Coronary circulation is the circulation of blood in the blood vessels which supply blood to the…

Q: Blood pressure is highest in the_____ and lowest in the_____ . a. arteries; veins c. veins; arteries…

A: The pressure given by blood which is circulating through the blood vessels on the inner walls of…

Q: Describe the location and blood flow through thecoronary arteries and cardiac veins

A: The human heart is situated in the middle of the thoracic cavity in a space called the mediastinum.…

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: Describe the Blood flow into the heart starting by the superior and inferior Vena Cava to the…

A: Blood flow refers to the movement of blood through the vessels from arteries to the capillaries and…

Q: The two tubes that eventually fuse to form the heart arereferred to as the ________. a. primitive…

A: Gastrulation refers to the procedure by which cells of the blastula get recognized to produce the…

Q: The upper chambers of the heart that receive blood are called ___.

A: The cardiovascular system of the human body is made up of the heart, blood, and blood vessels that…

Q: Compare and contrast pulmonary circulation and systemic circulation of the cardiovascular system.…

A: The transport of nutrients, minerals, oxygen, carbon dioxide to various parts of the body is…

Q: ____ carry blood away from the heart and ____ carry blood toward the heart. a. Veins . . . arteries…

A: Step 1 Blood vessels are tubes carrying blood, associated oxygen, nutrients, water, as well as…

Q: Which statement best describes a characteristic of ALL arteries? Select one: O a. Arteries lead…

A: Introduction Blood vessels are tubes that transport blood throughout the body. They form a…

Q: During the systolic phase of the cardiac cycle, the heart is

A: The cardiovascular system, also referred to as the circulatory system or the system, is an organ…

Q: List the types of arteries. Compare the amount of elasticfibers and smooth muscle in each type of…

A: Arteries can be defined as the type of blood vessel which transports the oxygenated blood throughout…

Q: Create a flow diagram for this cardiovascular system that has these elements in correct order • Vena…

A: Introduction  The circulatory system (cardiovascular system) transports oxygen-rich blood from the…

Q: Blood flows through the vessels references in the above image during:

A: Heart  It is the main blood pumping organ of the body as it is formed of Cardiac muscles. There are…

Q: Explain why it is more efficient for contraction of the ventricles to beginat the apex of the heart…

A: To answer this question we should have knowledge of Physiology.

Q: Use a flowchart to illustrate blood flow through systemic and pulmonary circulation, starting from…

A: The body's blood arteries are separated into two functional circuits: the pulmonary circuit and the…

Q: Explain how the blood volume in the left ventricle changes throughout the cardiac cycle in response…

A: Answer:  CARDIOVASCULAR SYSTEM : In all multicellular organisms there is a system which transports…

Q: Explain why the heart is called a double pump.  Briefly describe the pulmonary and systemic…

A: Blood circulatory system is the collection of different types of organs, cells, and tissues that…

Q: Sketch the heart and draw all the coronary vessels in their correct locations. (Alternatively, you…

A: Human heart is the Center for regulating blood across the body. It is made up of cardiac Muscles…

Q: Type of blood vessels taking impure blood from the head part to the heart are calle O a. Coronary…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Velocity of blood flow is the slowest in a. muscular arteries. b. capillaries. c. veins. d. elastic…

A: The circulatory framework, additionally called the cardiovascular framework or the vascular…

Q: If the AV node was damaged, the parts of the heart that would fail to contract are (the) O a. right…

A: The cardiovascular system is a network of arteries and veins in which the heart pumps blood. One of…

Q: Explain in detail how the blood flows through the heart.

A: Heart is also known as Cardia It is the hollow muscular organ responsible for pumping the blood…

Q: Explain how veins serve as a blood reservoir for the cardiovascular system.

A: The blood is a vital connective tissue with cells suspended in a liquid matrix called the plasma.…

Q: Fill in the blank:  The lowest pressure that remains in the arterial system during ventricular…

A: The cardiac cycle refers to the sequential events that take from the beginning of one heartbeat to…

Q: Diagram of a heart showing all chambers and valves. And describe how the blood flows through them

A: Working :- Receiving deoxygenated blood and carrying metabolic waste products from the blood and…

Q: The diagram shows a human heart and some of its major blood vessels. Blockage of which labelled part…

A: Coronary heart disease or atherosclerosis happens when the major arteries of the heart get damaged.…

Q: Give reasons why blood flow in the capillaries is slowest among the blood vessels

A: The blood flow in capillaries is slowest among all the other blood vessels like arteries, veins…