The "pump" or "pressure-head" for the pulmonary circulation is the: A. right atrium B. right ventricle C. left atrium D. left ventricle

Q: When ventricular walls relax: a. Mitral valve opens & tricuspid valve closes b. Tricuspid valve…

A: Mitral valve is also called the bicuspid valve  and it connect left Atrium to the left ventricle.…

Q: Mac is 13 and has fallen deeply in love with his first sweetheart.  He feels his heart “skip a beat”…

A: The mammalian heart is a complex structure divided into four different chambers, namely the left…

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: center of drainage in the dead human body is located at the:     A. Left ventricle of the heart…

A: once the person dies, the circulation comes to a halt. The appearence of livor mortis starts after…

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: During which phase of the cardiac cycle are the semilunar valves open? Select one: a. atrial…

A: Human heart is a muscular organ which pumps blood to different parts of the body through the set of…

Q: 6. Bioinformatics tools are better suited for testing hypotheses. True or False.

A: Bioinformatics The combination or marriage of biology and information biology. It is a recently…

Q: Refer to the figure of the pressures in the cardiac cycle on the right side. Letters indicate time…

A: This Wigger's diagram is used to understand physiology of heart. It explains -  Blood pressure -…

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: Which of the following might trigger erythropoiesis? a. decreased tissue demand for oxygen. b. Blood…

A: Erythropoiesis is the process of the production of red blood cells. Red blood cells help to deliver…

Q: Veins that return blood directly to the heart include the_________. Select one: a. superior vena…

A: The objective of the question is to identify the veins that return blood directly to the heart.

Q: Sinus Headaches are caused by: A. Drainage of the sinuses B. Inflammation of the sinuses C. Both…

A: Sinus headaches cause deep and constant pain in cheekbones, forehead, and bridge of the nose. The…

Q: Which of the following conditions might result in the back flow of blood through a weakened mitral…

A: a. High pressure in the left ventricle, low pressure in the left atrium

Q: Venous blood from the heart wall enters the right atriumthrough thea. superior vena cava.b. coronary…

A: The type of blood that is in deoxygenated condition and moves from the peripheral blood to reach the…

Q: Which of the following anatomical structures is not part of the systemic circuit a. left ventricle O…

A: The cardiovascular system is composed of two main circuits - A. The pulmonary circuit B. The…

Q: Veins that return blood directly to the heart include the_________. Select one: a. superior vena…

A: The objective of the question is to identify the veins that return blood directly to the heart.

Q: To get from the right atrium to the right ventricle, blood flows througha. the pulmonary valve.b.…

A: To get from the right atrium to the right ventricle, blood flows through the right AV valve or…

Q: Pulmonary edema can occur at high altitude this is happening because a. Of the swelling of the…

A: Pulmonary edema can occur at high altitude this is happening because  Of the leakage of fluid out of…

Q: The_________ carry blood toward the lungs. Select one: a. superior and inferior venae cavae b.…

A: The objective of the question is to identify the blood vessels that carry blood towards the lungs.

Q: erythropoietin release in the body happens when an individual is at high altitude. It results in a.…

A: Erythropoietin : It is a hormone which is produced predominantly by specialized cells called…

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: select the applicable structures a.Pulmonary circulation b.Systemic circulation c.Carries…

A: The given image is labelled as follows;

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: which of the following factors will increase the cardiac output? a. decreased heart rateb. increased…

A: The objective of the question is to identify the factors that can increase the cardiac output.…

Q: While the semilunar valves are open during a normal cardiac cycle, thepressure in the left ventricle…

A: The human heart beats 72 times per minute. During each heart beat, the chambers of the heart…

Q: Just after the dicrotic notch on the aortic pressure curvea. the pressure in the aorta is greater…

A: The aortic pressure is the pressure applied by the aorta. It is supposed to be 40mm Hg when the…

Q: Which of the following is/are involved in regulating blood pressure? a. heart b. baroreceptors c.…

A: Blood Pressure can be defined as the pressure exerted by the blood flowing in the blood vessels on…

Q: The only area of the heart that receives innervation from the brain is called the: A.…

A: Cranial nerves are the part of the nervous system that assists in a variety of functions. These…

Q: After passing through the inferior vena cava blood passes through the A coronary sinus B posterior…

A: The cardiovascular system, also known as the circulatory system, is made up of a blood pumping…

Q: Korotkoff sounds indicate:   A. Regurgitation from the ventricle into the atrium through a faulty…

A: The gold standard for non-invasive blood pressure measurement involves the utilization of the…

Q: Which of the following could be the correct pathway of travel for a blood cell currently in the…

A: Blood vessels are one of the three (*the other being the heart and the blood) components of the…

Q: A patient has been in a serious car accident and is hemorrhaging. Which of the following changes…

A: The heart is a muscular, mesodermally derived organ. It pumps the blood and circulates it in the…

Q: Which of the following would contain all the venous return specifically from the left upper limb,…

A: The heart is the muscular organ of human body and is main organ to collect and pump blood to…

Q: The following is correct about valvular structures A. The AV valves are the structures that divide…

A: The heart is a muscular organ that pumps oxygenated blood to the aorta, which conveys it to the…