The AV node fires, traveling down the Bundle of His Branches and to the Purkinje Fibers. This causes the _______________ to contract.

Q: The external ear-like flaps that are visible on the top of the heart are called ___

A: The main organ of the human circulatory system is the heart. It helps in pumping blood to different…

Q: The QRS-complex of the ECG is generated by the depolarization of the AV-Node & Ventricular…

A: Introduction :- The graphical recording of electrical excitation in the cardiac muscles of the heart…

Q: Would the relationship be the same if you had recorded the carotid pulse? Justify your answer.

A: Introduction The pulse rate, or the number of times the heart beats per minute, is a measurement of…

Q: What blood vessel is labeled D? K A B H. D. >E

A: Blood vessels are the pathways through which blood is transferred inside the body, different blood…

Q: When the ventricles are no longer acting as a syncytium and can't pump blood, they are in ____.…

A: The conditions where the heart of a normal person is unable to function properly is called as heart…

Q: How to interpret ECG strips

A: ECG paper is a grid where time is measured along the horizontal axis . Each small square is 1mm in…

Q: Physiology and Anatomy of Circulatory System

A: Blood - General - Formed elements (45%) suspended in plasma (55%). - 8% of body weight. 5-6 L…

Q: Carotid and aortic bodies are called _____because they respond to changes in blood chemistry

A: These are the peripheral chemoreceptors.

Q: Why low capillary blood pressure is desirable

A: Capillaries are microscopically thin blood vessels in the circulatory system. They are the sites of…

Q: The condition which happens when veins stretch so much that their valves can no longer hold blood in…

A: Answer is option d.

Q: Select the correct statement about cardiac output. A slow heart rate increases end diastolic…

A: Introduction  Cardiac output is calculated by multiplying the stroke volume by the heart rate. The…

Q: The Heart is Four -19 amber muscular organ

A: Ans: Yes, The heart is 4 chamber muscular organ.

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: Why physical inactivity can lead to venous

A: Lack of physical excercise can cause various complicaation in the bodys such risk of heart disease…

Q: The difference between blood flow and perfusion

A: Blood flow refers to the movement of blood while perfusion is the amount or volume of the blood that…

Q: The arterial p02 is relatively low in an individual suffering from congestive heart failure because:

A: pO2 is the partial pressure of oxygen refers to volume of oxygen present dissolved in the blood. It…

Q: If an embolus formed in the left ventricle, it would pass through:

A: The risk of left ventricular thrombus formation is highest during the first 3 months of acute…

Q: Aorta Pulmonary trunk Superior vena cava Inferior vena cava Interventricular septum Myocardium…

A: Heart is muscular organ that helps the continuous flow of blood in body.

Q: Factors that affect blood pressure

A: Blood pressure is the amount of pressure that is applied to the circulating blood vessels OR It is…

Q: Label numbers 1 through 10

A: The heart is the muscular organ that continuously pumps blood by rhythmic contraction and…

Q: The pulmonary trunk and pulmonary arteries are colored blue in all of the figures. Why are they…

A: In physiology, the pulmonary trunk is known as the main pulmonary artery which carries the arterial…

Q: While recording the ECG pattern, the subject must be still. Any talking, laughing or moving distorts…

A: An electrocardiogram (ECG) is the simplest test to diagnose the disorders of the heart. It measures…

Q: Blood flows from the ascending aorta right into the thoracic aorta.TRUE or false

A: The circulatory system is composed of the heart, arteries, capillaries, and veins. It transports…

Q: The median cubital vein accessed by the first responders is an anastomosis between two other veins,…

A: The median cubital vein is a superficial vein in the roof of the cubital fossa that is commonly…

Q: During what stage or stages is blood being pumped from the atria into the ventricles

A: The cardiac cycle completes in four different stages: They are filling phase, isovolumetric…

Q: The mitral valve is located between the

A: The mitral valve or bicuspid valve is located between the left atrium and left ventricle.

Q: how Physiological effects  it impacts upon the body system. for coronary heart disease

A: Coronary heart disease is caused due to the narrowing of the coronary arteries. The coronary…

Q: Starting outside the parietal pericardium, list the different layers you would cross to get into the…

A: Left ventricle is one of the two chambers of left side of heart or one of the four chambers of whole…

Q: This ECG shows all these findings, except? %3I V3 II

A: A normal ECG has illustrated above. Note that the heart is beating in a regular sinus rhythm between…

Q: The second heart sound ("lubb") is associated with closure of 2- -3 1-

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

Q: Blood flows from the common iliac vein right into the external iliac vein. TRUE or FALSE

A: In anatomy of human beings, common iliac vein is formed by the union of internal and external iliac…

Q: In this case, the patient’s left ventricular afterload was very high. This condition was reflected…

A: Afterload is defined as the pressure or force against which contraction of heart takes place for the…

Q: The digital region (which contains the ______) is Distal compared to the axillary region (which is…

A: In animal anatomy, regions of the body are reffered by specific anatomical terms with reference to a…

Q: Why the  venous thrombosis occur more than  in the artery

A: Thrombus formation is a blood clot that remains attached to a blood vessel wall.  It prevents blood…

Q: If a blood veseel is red, then it is artery and it carries oxygen rich blood. TRUE or false

A: the blood vessels which are red in color carries oxygenated blood and the vessels which are blue in…

Q: 56-year-old male who present with 2 hours of chest pain. BP = 142/85. Past history of smoking. aVR…

A: ECG  is also called as Electrocardiogram. This test usually advises to test the electrical activity…

Q: Flow of the blood through the heart

A: The plasma, blood cells, and platelets that form blood circulate throughout the body through blood…

Q: the table to compare arteries and veins by explaining the differences between them, including both…

A: Human anatomy is the study of the human body's bones, joints, muscles, and systems. The brain…

Q: Why worrying too much is bad for patients with heart conditions

A: A heart condition can referred to any cardiovascular disease or any other pathology that can…

Q: Blood flows through the bicuspid valve right before entering the left atrium. TRUE or false

A: Blood is a type of connective tissue present in the body of an individual. It is responsible for…

Q: Which vessels contribute most to altered systemic blood pressure when their smooth muscles contract…

A: Arteries carry blood away from the heart, whereas veins carry blood to the heart. Arteries branch to…

Q: Which vein is highlighted? femoral popliteal lesser saphenous greater saphenous Submit Bequest…

A: Veins are the blood vessels that take deoxygenated blood to the heart.

Q: The abnormal hardening of the walls of blood vessels is ____________________.

A: Blood vessels are the pipe like structures that transport blood. These can be arteries, veins or…

Q: 1. Where does blood in the right subclavian artery come from?

A: The subclavian arteries are pipes that carry blood rich in oxygen from your heart to your arms and…

Q: • Endocardium: Light pink • Myocardium: Dark pink • Fibrous pericardium: Orange

A: The function of colouring is not available in Bartleby but the information needed to do this…

Q: EDV, ESV, SV and CO of the heart.

A: The heart has two separate pumps where the blood flows in a unidirectional aspect from the right…

Q: Using your knowledge what items would you need to perform an emergency Abdominal Aortic Aneurysm…

A: An aortic aneurysm is a weakness in a region of the aorta, which must be attended to before it…

Q: Chest pain caused by partial blockage of the coronary arteries is heart attack high blood pressure…

A: Introduction: Coronary heart disease is characterized by the buildup of plaque in the arteries that…

Q: Jugular veins carotid arteries- a cava

A: Veins and arteries are the blood vessels which carry the oxygenated and deoxygenated blood…

Q: The erythrocyte has a _________________ shape.a) sphericalb) convexc) concaved) bi-concave

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