The second heart sound is heard as the ECG records the end of the ______.   A P wave.   B P-R interval.   C QRS wave.   D T wave.   E S-T segment.

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: The atria contract duringa. the first heart sound.b. the second heart sound.c. the QRS complex.d.…

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

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: Which one of the following is a matching pair?  A Pulsation of the radial artery - values in…

A: Heart is the muscular organ in most animals that is involved in pumping blood through blood vessels.…

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

A: Human circulatory system Blood arteries that convey blood away from and towards the heart make up…

Q: The trabeculae carneae are located in the __________.   A epicardium   B ventricles   C atrium…

A: Step 1 The trabeculae carneae or columnae carneae are either rounded or irregular muscular columns…

Q: A. intense right axis deviation and a slightly prolonged QRS complex. B. left axis deviation caused…

A: Electrocardiogram, also known as ECK or EKG records the electrical activity of the heart. It's a…

Q: In the figure below on the left, label the P, QRS and T waves. Describe what is happening in the…

A: The question consist of two parts but according to the rules of Bartleby.com only the first question…

Q: All of the following are part of the cardiac conduction system except the: a. chordae tendineae b.…

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

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 conditions might result in the back flow of blood through a weakened mitral…

A: a. High pressure in the left ventricle, low pressure in the left atrium

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: Looking at the wiggers diagram Which of the letters A-F would be the point when semilunar valves…

A: The stress exerted by pumping blood on the artery walls is called blood pressure. Blood pressure is…

Q: If the left ventricle failed to pump blood effectively, blood would back up in the _____."   A left…

A: HEART FAILURE (HF) -The most common type of HF is left-sided HF. The left side of the heart must…

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: Sino-atrial node is called the pacemaker of our heart. Why?

A: The SA (sino-atrial) node is a neuron’s specialized bundle that is located in the upper part of…

Q: The cardiac conduction system includes all of the following except:- a. the SA node. b. the AV node.…

A: Cardiac conduction system is made up of various muscles which send signals to the cardiac muscles…

Q: Which structure is labelled "F"? Aorta Cardiac muscle Inferior vena cava Left atrium Left ventricle…

A: Heart is important organ of body which helps I. Pumping of blood across all the tissues and cells…

Q: At the time point indicated on the ECG ____.   A blood would be flowing from the ventricles into…

A: An electrocardiogram can be defined as the type of test in which the heart's electrical activity is…

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: Aorta Aortic semilunar valve Bicuspid atrioventricular valve Chordae tendineae Inferior vena cava…

A:

Q: Which vessel would blood in the right coronary artery pass through next?   A anterior…

A: The circulatory system consists of three systems that work together; the heart (cardiovascular),…

Q: Answer question from image

A: Cardiac catheterization is performed to evaluate heart function, the presence of heart disease, and…

Q: The T wave represents: a. Depolarization of the ventricles b. Repolarization of the atria c.…

A: ECG (Electrocardiogram) can be outlined as the graph which represents the electrical activity of the…

Q: During systemic circulation, blood leaves the __________."   A right atrium and goes directly to…

A: Complete double circuit circulatory system is found in crocodiles, birds and Mammals. Their heart is…

Q: The lining of the heart chambers is called the __________.   A endocardium   B myocardium   C…

A: The heart is the muscular organ that pumps blood throughout the body. It is made of cardiac muscle.…

Q: Which is not true about our heart A. ventricular systole squeezes blood to the lungs and the body B.…

A: Heart is a muscular organ that helps puno blood to different body organs. It has four chambers,…

Q: The normal pacemaker of the heart is the ______.   A sinoatrial node   B left atrium   C…

A: Heart is an important organ that pumps blood. Heart is myogenic in nature meaning it is capable of…

Q: As blood in the ventricles surges back against the closed AV valves, the first heart sound lubb can…

A: The heart is a muscular organ the size of a fist that sits directly behind and somewhat to the left…

Q: The onset of the QRS complex of the ECG is most closely related to which of the following cardiac…

A: Isovolumetric ventricular contraction - This phase marks the beginning of systole and starts with…

Q: he inferior vena cava brings blood from the lower regions of the body and empties into the…

A: the inferior vena cava is the largest vein and it carries deoxygenated blood from the lower body…

Q: In an ECG, which of the following represents the repolarization of the ventricles? Group of answer…

A: An electrocardiogram (ECG) is a test that measures the electrical activity of the heartbeat. The…

Q: What occurs during the atrial reflex? a. Atria slow their filling rate. b. There is a decrease in…

A: Answer is d.) an increase in heart rate occurs in response to an increase in blood volume within the…

Q: The coronary arteries arise from the __________.   A right atrium   B inferior vena cava   C…

A: The coronary system comprises of arteries, arterioles, capillaries, venules and veins. These…

Q: What does the QRS complex in the EKG represent and what occurs immediately after? Select one: O a.…

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

Q: As blood in the great arteries ricochets back against the closed semilunar valves, the second heart…

A: The second  heart sound is caused by the closure of the aortic and pulmonary truck semilunar valves…

Q: d. Sinus Bradycardia 27. Slide #6 – What is the heart rate: а. 60 ВРМ b. 50 BPM С. 70 BPM d. 40 BPM

A: EKG stands for electrocardiogram, and it can be outlined as the graphical representation of…

Q: Which valves are closed during isovolumetric contraction & isovolumetric relaxation of the…

A: The Human heart is the Center for regulating blood across the body. It is located within the…

Q: Just number 18

A: Heart consists of four chambers- Right auricle, Right ventricle, Left auricle, Left ventricle.The…

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: Which statement about the normal electrocardiogram (ECG) tracing is false?   A The T wave…

A: The heart is depolarized at every beat to trigger its contraction. This electrical activity is…

Q: Why do some people show breath to breath changes on a ECG more clearly than others and what is the…

A: ECG or electrocardiograph represents the activity of the heart in a graphical form. It is used to…

Q: Which of the following blood vessels does carry low-oxygenated blood? 0 Aorta Pulmonary trunk Celiac…

A: Step 1 Blood vessels bring blood to the lungs, where oxygen enters the bloodstream, and then to the…

Q: In an ECG, the wave representing atrial repolarization = P wave PR interval O QRS complex O T wave

A: An electrocardiogram is a diagnostic procedure that records the electrical signaling of the heart.…

Q: The first heart sound is caused by turbulent blood flow which occurs as close(s). A only mitral…

A: Heart sound During each cardiac cycle two prominent sounds are produced. These are "Lubb" and "Dub"…

Dissection

Dissection is the process of cutting up the tissue of a dead or live animal or plant, to do anatomical studies and surgical treatments. The purpose of dissection is to learn more about the overall structure of organs and organ systems and thereby understand the physiology of the organism.