Which artery most commonly gives rise to the nodal artery a critical blood supply to the atrioventricular node?

Q: Generates electrical impulse that sets rhythm to the heart; the primary pacemaker of the heart. SA…

A: Heart has conductive system which generates and transfer the electrical impulses.

Q: Which of the following rows correctly identifies the movement of solutes on the arterial end and…

A: Net filtration pressure of the blood at the arterial end than at the venous end so blood leaves the…

Q: Which artery most commonly gives rise to the nodal artery a critical blood supply to the…

A: Two major primary coronary arteries are there, namely, the RCA (right coronary artery) and LMCA…

Q: Match each function to the correct cardiac valve. Prevents backflow of blood into the left atrium.…

A: Heart pumps blood to the body. Heart of mammals and birds has four chambers, 2 atria and 2…

Q: Does conducting arteries possesses more elastic fiber in tunica externa? yes or no

A: A blood channel that carries blood away from the heart is known as an artery. The thick walls of all…

Q: Can the intraventricular septum prevents the electrical activity from stimulating the heart in a…

A: The intraventricular septum is present between two ventricles of the heart, generally preventing…

Q: Which of the following best describes an artery? Select one: a. thin-walled, and supplied with…

A: Ans- Arteries are the important part of cardiovascular system in our body that carries the…

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: Label: aorta,apex, chordae tendineae, cusp, interventricular septum, L. atrium, L. ventricle,…

A: The heart is a muscular organ that pumps blood through the circulatory system. The oxygenated blood…

Q: Why less pressure is lost overcoming resistance between the arteries and the capillaries?

A: The oxygenated blood pumped by the left ventricle have a certain amount of pressure in it which…

Q: In supraventricular tachycardia, the rhythm may originate from any of the following, except SA Node…

A: Arrhythmias are irregular rhythms that do not obey the typical sequence of events. They are divided…

Q: Which of the following is NOT a population of pacemaker cells in the heart? a. papillary muscles b.…

A: D) purkinje fibre system

Q: What anatomical feature prevents the electrical signal from traveling directly from atrial muscle to…

A: The heart is a muscular organ that is divided into the left and right side to prevent the mixing of…

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: Capillary structure varies from organ to organ. Explain how?

A: The circulatory system is one of the most essential systems in the body. The function of the…

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

A:

Q: Why is the velocity of blood flow faster in arteries and veins than in capillaries?

A: Rate or Velocity of blood flow varies inversely with the total cross sectional area of the blood…

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: Blood pressure is lowest in Arteries Arterioles Capillaries Venules Veins

A: The blood pressure (BP) is the pressure applied by the blood to the wall of the blood vessels. Our…

Q: Which side of the heart is considered the pulmonary pump? What is the destination of blood from the…

A: The circulatory framework, likewise called the cardiovascular framework or the vascular framework,…

Q: Path of Blood in Heart Ventricles pump blood to body or lungs Atria fill with blood from body or…

A: The blood vascular system or the circulatory system is the transport system of the body. The…

Q: A child has chronic strep throat. If this condition is not treated, what heart disease can occur?…

A: The respiratory system is a network of tissues and organs that help an organism to breathe. In…

Q: Complete the process of the blood flow through the heart by filling in the missing terms in the…

A: The heart is responsible for transporting blood throughout the body. The arteries are responsible…

Q: Describe the components of the left atrioventricular valve.

A: The heart has four chambers: right atrium, right ventricle, left atrium, and left ventricle. The…

Q: Which of the following structures acts to carry electrical impulse to the ventricles?…

A: The heart, in the simple words, a pump consisting of muscle tissue. Like all muscles the heart…

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: How does the blood in the pulmocutaneous arch differ from that in the higher two aortic arches?

A: The circulatory system of amphibians includes pulmocutaneous circulation. It is in charge of…

Q: Concept diagram. Trace the flow of blood through the heart. Fill in the diagram using the terms in…

A: The heart is the major pumping organ and it starts to beat at about 22 days after conception. It has…

Q: What areas of the heart are deprived of blood when there is a blockage in the posterior…

A: Posterior Interventricular artery is a coronary artery, which is also known as the Posterior…

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

A: The human heart is a muscular organ that pumps blood. It is about the sized of a clenched fist. The…

Q: What generalization can be made about all arteries? What generalization can be made about all veins?

A: Blood is the fluid connective tissue. It is the main circulating fluid of the body. It transports…

Q: Identify in the picture all the following: 1. Right Auricle (atrium), -2. left Auricle (atrium),…

A:

Q: The atrioventricular valve on the same side of the heart as the origin of the aorta is the _____…

A: ATRIOVENTRICULAR VALVE It is the valve present between atrium and ventricle. It allows the flow of…

Q: Match the terms in column A with the descriptions in column B.  Column B1. upper chamber of the…

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

Q: relating to the heart - What is the function of the baroreceptors in the aortic arch and carotid…

A: Baroreceptors are sensory nerve cells which are specialised that can facilitate the central nervous…

Q: Why do ventricles have thicker walls than atria?

A: This question is based on the thickness of ventricles and atria.

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: Deoxygenated blood is returning to your heart from your head. What is the order of the structures of…

A: Heart is a chief pumping muscular structure which helps in sending oxygen rich blood to all parts of…

Q: Name the blood vessels that enter or leave the heart.

A: Blood vessels transport blood throughout the body. Arteries allow blood to transport away from the…

Q: Which of the following vessels has the largest lumen and a thin tunica media?   A Veins   B…

A: Step 1 Blood in the body is carried by different vessels called blood vessels. There are three…

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: Conceptualize in Color Arteries of the Head and Neck Identify and color the key arteries in the head…

A: Introduction : In humans and most other animals, an artery is a blood vessel that transports blood…

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: Why is it important that the AV node delay the electricalimpulse moving from the SA node and the…

A: The  AV node is a part of the electrical conduction system of the heart that coordinates the top of…