The structure marked by the white arrow (A) is found between the right and left ventricles (B) is found between the right and left atria (C) closes before birth (D) A and C (E) B and C

Q: During diastole: A. the AV-valves are open and the aortic & pulmonary arterial valves are closed. B.…

A: Systole and diastole are part of cardiac cycle. Systole means contraction of heart and diastole…

Q: Branches of this artery (white line) supply all of the following regions with oxygenated blood…

A: The circulatory system of our body supplies blood throughout the body. Often blood flow starts from…

Q: Which of the following is not a characteristic of a capillary? a. Fenestrated capillaries allow for…

A: Capillaries are known as very thin blood vessels in our bodies. It helps in the exchange of certain…

Q: Some babies, called “blue babies,” are born with a small hole in the wall between their heart’s left…

A: The cardiovascular system of the human body is made up of heart, blood, and blood vessels that help…

Q: Branches of the internal iliac artery supply which of the following organs or regions? 1.  uterus…

A: The iliac crest provides the walls and viscera at the waist, buttocks, genitals, and the area of the…

Q: Which of these statements is correct?a. Fetal circulation, like adult circulation, takes blood…

A: Introduction: The umbilical cord extends from the fetus to the placenta which helps in blood…

Q: The ascending aorta and pulmonary trunk develop from the embryonic:- a. bulbus cordis only. b.…

A: Ascending aorta refers to the part of the aorta that begins at the upper region of the left…

Q: Identify this vessel (A) right coronary artery (B) left coronary artery (C) anterior…

A: The coronary artery is responsible for blood supply into the heart muscles and they transports…

Q: The delivery of blood by the left ventricle into the sorta is intermittent, whereas blood flow in…

A: Peripheral circulation refers to blood flow in smaller blood vessels such as arterioles and…

Q: Blood vessels that carry blood away from the heart are called, (a) veins. (b) arterioles. (c)…

A: Blood vessels can be described as the conduits through which blood circulation occurs. The…

Q: A female newborn has hypoxemia. Echocardiography shows communication between the left and right…

A: The answer to this question is  D)truncoconal septa

Q: Imagine you are standing inside the left ventricle of an adult pig.  Blood is flowing in one…

A: The heart is a four-chambered muscular organ with four blood vessels which either brings blood to or…

Q: Which of the following statements are true? (a) The left ventricle wall is thicker than the right…

A: It is related to the circulatory system

Q: Identify the second vessel to branch off of the aorta (A) brachiocephalic trunk (B) subclavian…

A: The largest artery present in the body is referred to as the aorta. It arises in the left ventricle…

Q: In fetal circulation, blood from the placenta enters the vena cava by way of the Select one: a.…

A: Answer :-  Option d) ductus venosus (venous duct ) is correct Explanation - Oxygen and nutrients…

Q: Blood pressure can be significantly affected by (a) cardiac output (b) peripheral resistance (c)…

A: The wall of the arteries experiences a force that is exerted by the blood, this force is called…

Q: (iii) A muscular wall is absent in : A. Capillary B. Venule C. Arteriole D. Vein

A: The correct option is A. Capillary

Q: Where is the sinoatrial node located? (A) Between the left atrium and the left ventricle (B)…

A: The heart is the vital organ of the cardiovascular (circulatory) system that pumps blood throughout…

Q: Identify the correct order of the blood flow pathway? (A) the pulmonary arteries carry oxygenated…

A: Introduction: The cardiovascular or the circulatory system is the body's transport system. This…

Q: The structure that permits blood flow from the right atrium to the left atrium while the lungs are…

A: Blood flow is referred to as the flow of the blood in the blood vessels through tissue and organs to…

Q: If the pressure in the ventricles is higher than the pressure in the atria, but lower than the…

A: Heart valves open and close in response to pressure changes inside the heart chambers. the fluid…

Q: Given these blood vessels:(1) arteriole (3) elastic artery (5) vein(2) capillary (4) muscular artery…

A: The heart can be described as a pumping organ that continuously pumps blood to the entire body. It…

Q: Some babies are born with a heart defect in which the ventricles are connected to the wrong…

A: The cardiovascular system is an organ system which distributes blood to all the parts of the body…

Q: ventricles

A: At the end of      diastole ,the ventricles are 70% filled.

Q: A young couple that you are friends with gave birth to a new baby. They were told by their physician…

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

Q: During an ultrasonography, the doctor observes that all four chambers of the fetal heart are…

A: Cardiovascular system, also called the circulatory system, is an organ system that helps in the…

Q: The valve marked by the white arrow separates the (A) right atrium from the right ventricle (B)…

A: The heart is responsible for pumping the blood to different parts of the body.

Q: The papillary musclesa. are attached to chordae tendineae.b. are found in the atria.c. contract to…

A: The papillary muscles keep valves from inverting. (a) The papillary muscles have chordae tendineae…

Q: The heart is found within the: A. pleural cavity B. mediastinum C. peritoneal cavit

A: Heart  Heart is a mesodermal origin. Heart is protected by a double walled pericardium membrane…

Q: The ""lub-dup"" heart sounds are produced by the _______"   A "opening of the atrioventricular…

A: Heart sounds are heard by auscultation using a stethoscope. It is an important aspect of the…

Q: Which of the following structures provides the anchoring site for the valves of the heart and…

A: The heart valves can halt the backward progression of blood. These valves are actual flaps that are…

Q: The left fourth aortic arch vessel in an embryo becomes thea. left common carotid artery.b. left…

A: A series of embryological vascular structures which arise from the aortic sac and give rise to the…

Q: In the aorta, Select one: a. the resistance to blood flow is high, but velocity of blood flow is…

A: The objective of the question is to understand the characteristics of blood flow in the aorta, which…