The vein that collects most of the venous blood from below the diaphra O superior vena cava O inferior aortic O great saphenous O inferior vena cava Blood leaves the left ventricle by passing through the aortic semilunar valve mitral valve

Q: The cardiac valves consist of a central core of dense fibrous connective tissue lined on both sides…

A: There are four valve present in the heart which helps in regulation of blood flow. Blood flow in a…

Q: The left ____________________________ can often be seen superior to the aortic arch as it courses…

A: Structures present surrounding the aorta are pulmonary artery anteriorly, left atrium, right…

Q: A blood platelet flows through a coronary artery that is partially blocked by deposits on its wall.…

A: The type of arteries that surround the entire heart and supplies oxygen continuously for the cardiac…

Q: (a) (b) (c) The part of the illustration at the bottom (c) shows Initial inflation of the BP cuff O…

A: Sphygmomanometer is the device used to measurement of blood pressure.

Q: The lower chambers of the heart are the: A) aortasB) capillariesC) ventriclesD) atriums

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

Q: This vessel carries oxygenated blood into the heart. O pulmonary artery O pulmonary vein vena cava O…

A: Aorta carries oxygenated blood to the body. Pulmonary artery carries deoxygenated blood from right…

Q: The average pressure in the systemic arteries during an entire cardiac cycle is known as: O…

A: The cardiac cycle is defined as the complete cycle from contraction to relaxation of heart muscles.…

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: The period of ventricular contraction = O phase O of pacemaker action potential O phase 2 of…

A: Isovolumetric contractions occurs in The early  stage of heart contractions. The period of…

Q: The finest passages through which electrical signals pass before reaching the ventricular…

A: Introduction: The muscle of heart is composed of small cells through which electrical signals are…

Q: The P wave on an electrocardiogram (ECG) represents the depolarization of cells in the: O…

A: Heart is an organ present in the circulatory system. It is responsible for pumping of blood to the…

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: The right and left brachiocephalic veins ________.a. drain blood from the right and left…

A: Blood vessels are the components of the circulatory system, which are essential for transporting…

Q: The closure of a precapillary sphincter prevents blood flow to tissues from: elastic arteries. O…

A: Introduction :- The blood vessels that transport oxygen-rich blood from the heart to the body's…

Q: During ventricular fibrillation, heart has a hard time to pump blood. O True O False

A: Ventricular fibrillation is also known as arrhythmia, which is the state of abnormal heart rhythm.…

Q: The cardiac cycle consists of a distinct relaxation andcontraction phase. Which term is typically…

A: The cardiac cycle is the process of contraction and relaxation of the heart. The primary function of…

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: The sinoatrial node is also called the A. PacemakerB. Action potentialC. Resting membrane potent

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

Q: In terms of blood flow, which of the following follows the right ventricle? aorta O pulmonary veins…

A: Heart is a four chambered muscular organ located in the chest region. There are four ventricles and…

Q: Vessels that carry blood away from the heart are called * O Vein O Artery O Vapillary

A: The heart is a muscular organ the size of a fist that is found just behind and just to the left of…

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 outward force that blood exerts on the walls of blood vessels is: O cardiac output. O blood…

A: The outward force that blood exerts on the wall of blood vessels is known as Blood Pressure. Blood…

Q: Blood in the heart chambers is separated from the myocardium by a thin membrane called the _____.

A: The correct answer is Endocardium .

Q: The two _____ veins unite like an upsidedown Y to form the inferior vena cava

A: Veins are blood vessels that carry blood to the heart. Most of the veins carry deoxygenated blood…

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: Comparing and contrasting arteries and veins, veins havea. thicker walls.b. a greater amount of…

A: Arteries are blood vessels which carry blood away from the heart. Veins are the blood vessels which…

Q: Feeding the heart with oxygen, the heart gets blood from the to the arteries. O Aortic arch/coronary…

A: The heart is a strong organ about the size of a fist, found simply behind and marginally left of the…

Q: Identify the bundle of His O under the left ventricles O between the right and left ventricles of…

A: "The bundle of His" is an important part of the electrical conduction system of the heart. It…

Q: The main pacemaker area of the heart is the: O Bundle branches O AV node SA node Purkinje fibers

A: Given: The heart is a muscular organ which is as big as our fist.It is located between the lungs in…

Q: Which primitive area of the heart will give rise to theright ventricle?a. bulbus cordisb. primitive…

A: Heart is a hollow muscular organ. It pumps blood through the blood vessels of circulatory system.…

Q: All the blood that passes through the aorta, except the blood that flowsinto the coronary vessels,…

A: Resistance is a force that opposes the flow of a blood.

Q: complete blockage of this coronary artery results and sudden death because of the large amount of…

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

Q: ( QRS ) that the appearance of the compound in : due to ( ECG , electrocardiogram ORight atrium…

A: The standard electrocardiogram (ECG) displays 12 different vector views of the heart's electrical…

Q: From which chamber of the heart does blood leave to go to the body: O Left atrium O Both left…

A: Please follow step 2 for detailed explanation.

Q: (a) (b) The part of the illustration in the middle (b) shows O Pressure at which you would hear the…

A: This illustration shows the process of measuring arterial blood pressure using sphygmomanometer and…

Q: ical procedure called a bypass graft, a vessel is bypasses one of that patient's blocked arteries. A…

A: 10] Saphenous vein grafting is a technique used for bypass surgery. It is a easy method to handle…

Q: What normally serves as the pacemaker of the entire heart? O Purkinje fiber system O…

A: Introduction: The heart has a specialized cardiac musculature known as nodal tissue (distributed in…

Q: The ___ valves are positioned between the atria and the ventricles.

A: Heart the mesodermally derived organ, is situated in the thoracic cavity in between the lungs,…

Q: What valve prevents the backflow of blood from the right ventricle into the right atrium? right…

A: One of the most essential systems in the human body is the circulatory system. It is made up of the…

Q: The subendocardial layer contains O all of them elastic and collagen fibers and smooth muscle cells…

A: Introduction There are three layers present our heart wall. The outer layer is called epicardium,…

Q: Place these events in the correct order as they occur in the cardiac cycle: 1. Contraction of the…

A: Cardiac cycle Cardiac cycle is a term used to describe the relaxation and contraction that occur,…

Q: O the shutting of the heart valves

A: Option C . The shutting of heart valves

Q: What type of capillaries have large pores within their endothelial cells and are the leakiest? O…

A: ▪︎Capillaries are the tiny blood vessels  which connect arterioles to venules.These are the smallest…

Q: The first heart sound (S1) is caused by: O The aortic and pulmonary valves closing as ventricular…

A: heart is the organ which helps in pumping blood to all parts of the body .it produce sounds which is…

Q: which property of veins contributes to increase venous return compared to arteries. 1. They…

A: Venous return can be defined as the flow of blood back to the heart. Under the stable condition,…

Q: Oxygen and Carbon Dioxide are exchanged from the blood to cells here: A) ArteriesB) PlateletsC)…

A: Oxygen is used by cells for the process of cellular respiration while carbon dioxide is produced as…

Q: The aortic valve closes when pressure in the __ is higher than pressure in the ___. -- -

A: The cardiac cycle is referred to as one heartbeat that consists of one cycle of contraction and…

Q: This muscular blood vessel regulates blood pressure an blood flow to the capillaries. O Arteriole O…

A: Answer is arteriole

Q: Blood is carried to capillaries in the myocardium by way of:     coronary arteries     the…

A: The myocardium is a thick middle layer of the cardiac wall that is composed of contracting muscle…