In coronary bypass surgery, the internal thoracic artery can be used as the bypass vessel by suturing its distal end onto the obstructed coronary artery in the heart wall. Explain why using this vessel is superior to using the great saphenous vein of the leg.

Q: Fill in the blank:  The _______________________ node is located in the inferior portion of the…

A: Closed circulatory system is a type of circulatory system in which blood flows inside the blood…

Q: Place the unpaired branches of the dorsal aorta in the correct order, from posterior to anterior.…

A: Dorsal aorta is the earliest functional intra-embryonic blood artery which emerges as 2 independent…

Q: Give the functions of the following: midrib, veins and veinlets

A: The midrib is the vein that run through the middle of the lamina. The midrib divides the lamina's…

Q: The vein that drains the dural sinuses of the brain is the (a) cephalic vein. (b) great saphenous…

A: The cells are the primary unit of life. The cells form the tissues which collectively form an organ.…

Q: State two ways in which the great saphenous vein has special clinical significance. Where is this…

A: Introduction: The large, superficial vein present in the leg that lies in the subcutaneous part is…

Q: Why would venous valves be unnecessary in the jugular veins of the neck?

A: Veins The veins carry oxygen depleted blood from different body parts to the heart. The veins are…

Q: Give the functions of the following: midrib, veins and veinlets.

A: The midrib is the vein that run through the middle of the lamina. The midrib divides the lamina's…

Q: The tricuspid valve is located between the

A: Human heart is a muscular organ about the size of a fist. It is located just behind and slightly…

Q: Look for the septal leaf of the tricuspid valve and just above its attachment,locate the…

A: The heart is a muscular organ situated on the left side of the chest. It is about the size of the…

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: What is the largest vein that drains the coronary circulation called, and where is it located?

A: Veins are blood vessels of the heart that helps to carry blood towards the heart. They transports…

Q: Name the veins that return blood to the right atrium.

A: There are two types of circulations namely pulmonary circulation and systemic circulation.…

Q: Describe the differences between a medium vein and a medium (muscular) artery. State the functional…

A: The arteries and veins constitute a network of blood vessels that supply oxygenated blood to the…

Q: Identify the principal veins that drain the upper limbs.

A: Forearm Cephalic vein. Basilic vein. Median forearm vein. Arm Brachial vein. Cephalic vein.…

Q: What areas of the body are supplied by the paired arteriesthat branch from the abdominal aorta? The…

A: The cardiovascular system consists majorly of the heart, blood vessels, and blood. It is responsible…

Q: List the three major veins that return blood from the thoraxto the superior vena cava.

A: The heart received blood from various parts of the body and carries deoxygenated blood into the…

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: Trace the path of blood in the coronary vessels from the heart to the major arteries and from the…

A: The blood circulatory system, also called as cardiovascular system is the one which functions to…

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

A: CRITERIA                                   ARTERY                           VEIN…

Q: List veins that drain the thoracic and abdominal walls and delineate their pathways.

A: Heart refers to the muscular organs that pump the blood via the blood vessels. Arteries are the…

Q: Why could a choke hold (a tight grip around the neck) cause a person to pass out? What arteries…

A: In the human body, the brain is a complex organ present. The brain is the control center of the…

Q: During procedures on the carotid artery, one must be careful not to enter or injure the internal…

A: The main difference between the jugular vein and the carotid artery is that the jugular vein drains…

Q: Which valve prevents the backflow of blood from the left ventricle into the left atrium? 1.aortic…

A: The valves stop the backward flow of blood. These valves are actual flaps that are settled on every…

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: 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: Explain why a high elastic content is required in the wallof the aorta.

A: Aorta is the most important and largest artery of the body. It originates from the left ventricle…

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 largest veins that empty into the right atrium are the _____ and _____

A: The body organs work systematically to regulate the proper body functioning. The different organ…

Q: Each common carotid artery bifurcation into two sections. Provide the names of the two branches and…

A: The artery refers to the blood vessel that provides oxygen-rich blood from the heart to the body…

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: List the blood vessels , in their correct order, as blood travels from the heart, to the posterior…

A: Aorta – The body’s largest artery is the aorta which originates from the LV (left ventricles) and…

Q: in the space below list the flow of blood through the coronary circulation using the terms: cardiac…

A: The coronary system of circulation delivers blood to the heart muscles. This circulation is…

Q: explain Axillary artery

A: The axillary artery is known to originate from the subclavian artery and this large blood vessel…

Q: List the arteries that are part of, and branch from, thecerebral arterial circle.

A: The branches from the dorsal aorta provide the entire blood supply to the central nervous system…

Q: Describe the flow of venous blood from the Dural sinuses into the internal jugular vein and into the…

A: Veins are thin blood vessels with inelastic walls and numerous valves, which carry blood towards the…

Q: Name the branches of the thoracic and abdominal aorta.

A: The thoracic aorta can be defined as the type of aorta present in the chest. The thoracic aorta…

Q: Name the vein that starts as well as terminates as capillaries.

A: Introduction: Blood vessels are responsible for transporting blood to various parts of the body. In…

Q: Why are the left and right coronary vessels considered the major coronary vessels?

A: The coronary vessels are the blood vessels which are responsible for supplying blood to the heart.

Q: The vessel at the arrow drains the sigmoid dural sinus. Name the blood vessel AND the name of the…

A: Introduction:-  The superior vena cava is a large, valveless vein that conveys venous blood from…

Q: Lumen of the right atrium Lumen of the right ventricle Right atrioventricular valve Right coronary…

A: * Heart is made up of cardiac muscles  * Heart consists of two atria and two ventricles  * And it…

Q: Mitral valve prolapse is a disease where the valve between the left atrium and left ventricle…

A: The mitral valve permits blood to flow from the left atrium into the left ventricle, but not in the…

Q: The great saphenous vein is the largest superficial vein of the lower limb and it drains the medial…

A: Superficial veins are present close to the surface of the body. They facilitate the cooling of the…

Q: Describe the branches of arteries coming off of the abdominal aorta from just below the diaphram to…

A: The largest blood vessel called abdominal aorta is located in the abdomen region. It is in…

Q: Briefly describe and compare sinusoids and fenestrated capillaries with continuous capillaries. Give…

A: Capillaries are small (3 to 4 µm) blood vessels that connect venules to the arterioles. Capillaries…

Q: Name the arteries that supply blood to the nearest organ, kidney and liver.

A: An artery is defined as the vessel which carries the oxygenated blood away from the heart and hence,…

Q: Trabeculae ___ are visible on the inner surface of the ventricles

A: The human heart is four-chambered with two atria and two ventricles that help in pumping the blood…