Right Atrium serves as the receiving chamber for blood returning to heart from the systemic circulation via: Oa. pulmonary arteries. Ob. pulmonary veins Oc. aorta Od. pulmonary trunk. Oe. Non all of the above

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: Where is blood pressure lowest? In the veins. In the arteries

A: Hi! Thanks for your question. But as you have posted multiple questions, I am answering the first…

Q: The sternal angle marks the location of the: Bifurcation of the trachea Second costal cartilage O…

A: The sternal angle is a crucial clinical marker for locating numerous other anatomical locations.

Q: The resistance to blood flow is greatest in thea. aorta. c. capillaries. e. veins.b. arterioles. d.…

A: Hemodynamics or haemodynamics are the dynamics of blood flow. The circulatory system is controlled…

Q: The blood vessel that delivers blood to the lungs is called O The inferior vena cava O The superior…

A: Cardiovascular System: The cardio refers to the heart and the vascular refers to the blood vessels.…

Q: Moving from a SUPINE to a STANDING position result in an:  a. decrease in heart rateb. increase in…

A: The question is asking about the physiological changes that occur in the body when moving from a…

Q: Nhich of the following is a CORRECT statement? (Check all that apply) A When blood is collected in a…

A: Blood is the body's fluid for humans and other animals that carries essential nutrients, such as…

Q: Choose the best answer Blood moving from the left atrium to the left ventricle passesthrough which…

A: Heart is the main organ pumping blood. Heart is myogenic meaning it is capable of auto excitation.…

Q: Blood flows faster in a venule than in a capillary because venulesa. have one-way valves.b. are more…

A: The circulation of blood is governed by the cardiovascular system, which has two different circuits…

Q: Which of the following structures in the circulatory system carries oxygenated blood? a pulmonary…

A: The circulatory system consists of heart, blood and blood vessels. Type of blood vessels which…

Q: Blood flow velocity is slowest in which vessels: A. Aorta. OB. Large arteries. OC. Large veins. OD.…

A: Circulatory system is a type of body system which is involved in circulation of body fluids ,…

Q: sinus is the largest located laterally and slightly inferior to nasal cavity Oa. Maxillary sinus Ob.…

A: Sinuses are also known as paranasal sinuses. These are air-filled extensions of the nasal cavity.…

Q: In which of the following does a blood vessel burst, sending bloodinto the surrounding tissues, such…

A: A stroke happens when the blood supply to some portion of your mind is hindered or diminished,…

Q: In humans, blood returning to the heart from the lungs returns toa. the right ventricle. d. the left…

A: In humans, the route of blood through the pulmonary circuit is as follows: Right ventricle -->…

Q: The origin of the coronary arteries are labelled ___ in this image. D A E K

A: The heart must operate constantly, thus it is made up of specialized muscle tissue (cardiac muscle)…

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: During the cardiac cycle shown in the graph above the ventricles eject _______ of the blood they…

A: The cardiovascular system consists of the heart and the blood vessels. The heart is the pumping…

Q: The major resistance element in the arterial circulation is: A. The arterioles. B. The aorta. OC.…

A: The circulatory system of the body is a continuous system of tubes called blood vessels. These blood…

Q: Which of the following statements are true of the mitral valve? (Please note that you may pick more…

A: Mitral valve connects left atrium and left ventricle.During diastole this valve opens and the blood…

Q: When the ventricles contract, all of the following occur excepta. closing of the AV valves.b. blood…

A: Ventricles are the larger chambers of the heart which receives blood from the atrium. The right…

Q: There is a semilunar valve between the_____ and _____       right ventricle and the aorta.   left…

A: In the heart of mammals different valves are present which are responsible for the transportation of…

Q: Blood often flows into a capillary bed froma. the distributing arteries.b. the conducting…

A: Blood is a vital circulatory fluid in the cardiovascular system in the human body. Blood helps to…

Q: The valve found between chambers A and B is the .. A B D

A: Heart is the most important organ of circulatory system. In humans, heart has two atria and two…

Q: Which of the following is not true of veins Group of answer choices have a thin tunica media have a…

A: Veins are blood vessels that carry blood towards the heart. Unlike arteries, which carry oxygen-rich…

Q: During atrial fibrillation: O A. The EKG shows no discernable P wave. O B. There is a noticeable…

A: Human heart consists of four chambers: two atria and two ventricles. The left atria receive…

Q: The right and left coronary arteries arise from where? Thoracic aorta, base of the aorta, superior…

A: CORONARY ARTERY - the coronary arteries are the arterial blood vessels of coronary circulation ,…

Q: Baroreceptors have which of the following properties?

A: Blood pressure, commonly referred to as BP, is a crucial interaction of the blood. It refers to the…

Q: Which of the following is found in the middle portion of the inferior mediastinum?

A: The human body is composed of various systems that aid in control, function, locomotion,…

Q: In a patient with _______ some of the oxygenated blood returning to the left atrium would be pumped…

A: The blood enters the heart's right atrium from the body, where it moves to the right ventricle and…

Q: The major compliance element in the arterial circulation is: O A. The arterioles. O B. The Vena…

A: The circulatory system of the body is a continuous system of tubes called as the  blood vessels…

Q: Circle the correct pathway that blood follows through the upperlimb arteries:a. subclavian →…

A: The heart is at the center of the circulatory system. It is a network of blood vessels that delivers…

Q: The right and left coronary arteries arise from the: O coronary sinus O aorta O pulmonary trunk O…

A: Coronary arteries referred to as the blood vessels involved in the coronary circulation and…

Q: Blood is supplied to the myocardium by O contact with blood in the pumping chambers. O the coronary…

A: The heart is the main organ of the circulatory system of the body that is responsible for pumping…

Q: During diastole the blood pressure in the left ventricle is A lower than the pressure in the left…

A: We can say that The heart is a highly muscularized, involuntary organ of the body. It has four…

Q: During atrial fibrillation: A. The EKG shows an exaggerated P wave. OB. There is a noticeable…

A: Human heart consists of four chambers: two atria and two ventricles. The left atria receive…

Q: Which among the following carriesimpure blood from human heart to lungs?A. AortaB. Pulmonary veinC.…

A: The blood acts as an important medium to carry substances such as oxygen, carbon dioxide, hormones,…