When is the blood pressure in the left ventricle greater than the blood pressure in the aorta?   A during diastole   B during systole   C all of the time   D never

Q: A major difference between arteries and veins is thata. arteries always carry oxygenated blood;…

A: The circulatory system has blood vessels to carry blood from one place to another throughout the…

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: 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: 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: 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: 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: For questions #10-20, match each term to its definition. _____ . Vein…

A: Heart is defined as the hollow muscular organ which is composed of several layers of cardiac muscles…

Q: A Myocardial Infarction is defined as: a. Chest pain that usually starts with physical exertion and…

A: Human Heart is a four-chambered, fibro-muscular organ. There are two atria through which the heart…

Q: Which one of the following sentences is wrong? A Small arteries are called arterioles. B…

A: The network of circulatory system consists of blood, blood vessels and the heart. This entire…

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: An area of dead myocardial tissue is called: A) an infarct B) stenosis C) an induration D)…

A: Answer is A.) an infarct.

Q: nodal delay a. maintains cardiac output by allowing enough ventricular filling. b. prevents…

A: The AV node is a highly specialized conducting tissue that slows the impulse conduction considerably…

Q: The patient's ECG indicates that _____.   A action potentials are passing from his atria into his…

A: Electrocardiography -- The process by which electrocardiogram is done defined as electrocardiography…

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: a. Ventricular diastole b. Throughout the cardiac cycle c. Between cardiac cycles  d. Ventricular…

A: Heart It is the main component of the circulatory system. It pumps the blood to various parts of the…

Q: When it comes to arteries and veins, do veins have? a) a tunica media that is missing in arteries…

A: Since you have posted a question with multiple sub-parts, we will solve the foremost three for you.…

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: Read the following statements: Statement A: Ventricular diastole leads to reduction in ventricular…

A: A heart is a muscular pumping organ of the circulatory system along with the blood and blood…

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 diameter of veins is typically larger than that of arteries,becausea. veins must carry blood at…

A: Open and Closed circulatory systems are the two types of circulatory systems in our body. This…

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: If a stent is not used in a few cases who have coronary angioplasty done, the artery tends to narrow…

A: Angioplasty is a technique to restore the flow of blood from a blocked artery or vein. It is…

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: Up to 65% of the body's blood supply is found in __________.   A arteries and arterioles   B…

A: Blood is a viscous fluid present in animals and humans that carries all essential nutrients,…

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: Blood leaves the right ventricle through the ______.   A pulmonary trunk   B right atrium   C…

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

Q: At the point labeled E the 120 В Aortic pressure 60 A DE Atrial pressure Ventricular pressure O…

A: The heart is divided into left and right sides separated by a septum. Both the sides are divided…

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: Heart failure occurs when   a. the cardiac output is 15 liters per minute when you are watching…

A: A heart failure means that the heart muscle doesn't actually  pump as much blood as per  body…

Q: In a normal heartbeat the atria contract ______.   A at exactly the same time as the ventricles   B…

A: Rhythmic pulsation of the heart as a result of an action potential is known as the heartbeat. The…

Q: blood flow in the left coronary artery is less during systole than diastole

A:

Q: An electrocardiogram (ECG) measures the ____.   A difference in electrical potential between two…

A: An electrocardiogram or ECG is a simple non-invasive test conducted on the patient to check his /…

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: 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 second heart sound is heard as the ECG records the end of the ______.   A P wave.   B P-R…

A: Electrocardiograms also called ECGs or EKGs is a simple diagnostic machine that checks the…

Q: One difference between the semilunar valves and the atrioventricular valves is that only the…

A: The valves that are found between the atria and ventricles are termed as atrioventricular valves,…

Q: In the pause between the 2nd sound (dub) of one beat and the 1st sound (lub) of the following beat…

A: The heart has two major sounds which are referred to as lub and dub. The first sound of the heart is…

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: 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)…

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…

Q: The presence of __________ stabilizes the wall of arterioles and capillaries.   A gap junctions   B…

A: An arteriole is a very small blood vessel as it has a very small diameter. These arterioles are…