Which primitive area of the heart will give rise to theright ventricle?a. bulbus cordisb. primitive ventriclec. sinus venosusd. truncus arteriosus

Q: Which part of the heart is responsible for initiating and maintainingthe rhythmic activity of the…

A: The heart is a muscular organ that pumps blood throughout the body. It is located in the middle…

Q: How is blood prevented from backflowing from the pulmonary trunk into the right ventricle? a.…

A: As the heart pumps blood, a definite series of valves open and close tightly. These valves ensure…

Q: The second heart sound ("dub") results from vibrations generated by the A. closing of the AV valves…

A: A normal heartbeat consists of two sounds- LUB and DUB. These sounds often occur as pairs in a…

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: 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: a. Ventricles b. Atria and ventricles c. Valves d. Atria

A: The P wave indicates atrial depolarization . The P wave occurs when the sinus node creates an action…

Q: The ascending aorta and pulmonary trunk develop from the embryonic:- a. bulbus cordis only. b.…

A: Ascending aorta refers to the part of the aorta that begins at the upper region of the left…

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: Name the vessels which recieve blood from the heart and state the chambers which pumps into those…

A: Vessels are the component of circulatory system of the body. Their function is transportation of…

Q: All arteries in the body contain oxygen-rich blood, with theexception of thea. aorta. c. renal…

A: Answer is b.)  pulmonary arteries.

Q: The heart chamber that receives oxygenated blood from the lungs of animals with a double circulation…

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

Q: Which structure is not functioning properly if an electrical device is needed to stimulate the atria…

A: The heart has an electrical conduction system that consists of a highly constricted and controlled…

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 of these is an incorrect statement concerning the heartbeat?a. The atria contract at the same…

A: The heartbeat has two parts, systole when the heart contracts and pumps blood and diastole when the…

Q: Which of the following is NOT one of the functions of the cardiovascular system? a) To exchange…

A: The cardiovascular system or the circulatory system comprises the heart and the network of blood…

Q: Which row shows the chambers of the heart, from those with the thickest walls to those with the…

A: The human heart has two atrium which are separated by the interatrial septum from each other. There…

Q: Inflammation of the pericardium can lead to a condition called pericardial effusion, in which fluids…

A: The heart is a conical hollow organ which consists of four chambers. Two auricles and two ventricles…

Q: The vein through which blood reaches the heart from the abdominopelvic viscera is the (a) superior…

A: The vein through which blood reaches the heart from the abdominopelvic viscera is the:

Q: Which valve separates the left atrium from the leftventricle?a. mitralb. tricuspidc. pulmonary d.…

A: The heart consists of 4 chambers the two upper chambers are atria and two lower chambers are…

Q: corresponds to: A. Right ventricle B. Left Atrium  C. Right Atrium D. Left ventricle

A: Left atrium is the upper right chamber of heart .

Q: Which type of blood vessel has one-way valves in its lumen? Select one: a. elastic arteries b.…

A: BASIC INFORMATION  BLOOD VESSELS  These are components of Circulatory system. They have the…

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: The function of structure X is to Select one: a. act as the pacemaker of the heart. b. initiate the…

A: Heart is located in the chest cavity and derived from mesodermal tissue. Heart is surrounded and…

Q: The lower chambers of the heart that contract to push blood out of the heart are called ___.

A: Heart is a muscular organ that pumps blood throughout the body.

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: art pumps oxygenate

A: The heart can be defined as the muscular organ present in most of the animals which are responsible…

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: Blood flows directly from the left atrium to_____ . a. the aorta c. the right atrium b. the left…

A: The heart has four chambers in human beings. They are the two upper atria and two lower ventricles.…

Q: The QRS wave of an ECG is produced by. a. depolarization of the atria. b. repolarization of the…

A: ECG or electrocardiogram is a diagram or graph of the electrical activity of heart that is produced…

Q: The upper chambers of the heart are the: A) capillariesB) atriumsC) aortasD) ventricles

A: The organ system is the group of organs that functions together to maintain the biological system of…

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: 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: explain the  heart process

A: The human heart is an organ that pumps blood through the circulatory system's veins, giving oxygen…

Q: How would the left ventricle of a patient who had had high blood pressure for many years differ from…

A: Answer: Introduction: Left ventricular hypertrophy is expansion and thickening means hypertrophy of…

Q: Myocardial infarction, or a heart attack, results if there is a lack of oxygen and nutrients brought…

A: Myocardial infarction It is commonly referred to as the heart attack , is the sudden death of   part…

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: Just number 18

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

Q: During the cardiac cycle, when would you expect to hear the second heart sound? O a) After ejection…

A: The timeframe that starts with compression of the atria and closures with ventricular unwinding is…

Q: The heart’s internal pacemaker beats by: a. an internal implant that sends an electrical impulse…

A: The heart is a muscular organ in numerous animals, which siphons blood through the veins of 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: Why might the increase in heart rate associated with a vigorous exercise program be the cause of his…

A: Cardiac muscles are the muscles that are present in the heart and are principally accountable for…

Q: Which of these events occurs during (ventricular) systole? A)Only the left ventricle contracts.…

A: Diastole and systole are two phases of the cardiac cycle. Systole occurs when the heart contracts to…

Q: The heart's pacemaker is the O a. atrioventricular node O b. bicuspid node O c. sinoatrial node O d.…

A: A cardiac pacemaker is a medical device that sends electrical impulses to the heart muscle chambers…

Q: In which of the heart chambers would deoxygenated blood be found? A)left atrium and left ventricle…

A: Blood Circulation in Circulatory System: Through two large veins (inferior and superior vena cava)…