27. All of the followings are incorrect about adult human heart, except ---------------------. A. There is a lower systemic than pulmonary arterial blood pressure B. There are four chambers in the heart C. The right atrium receives blood directly from pulmonary veins D. In adults, right atrium is connected to the left atrium by the foramen ovale E. The right atrium is electrically coupled to the right ventricle by the SA node

Q: Which of the following is correct regarding the flow of blood in reference to the left side of the…

A: Heart is the main pumping organ of the body. It is divided into four chambers two upper Chambers are…

Q: 38. The onset of Ventricular systole is associated with: A. the closing of the aortic valve B. the…

A: Heart is the pumping organ. It is responsible for pumping the blood to different parts of the body.

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

A: Introduction An electrophysiology examination is a test used to assess the electrical structure of…

Q: 45. Which of the following is/are true concerning the opening and closing of thecardiac valves?   A.…

A: The valves of the heart maintain undirectional flow of the blood and prevent its regurgitation in…

Q: All of the followings are incorrect, except ---------------------. A. Continuous capillaries like…

A: A capillary is an extremely small blood vessel located within the tissues of the body that…

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: 1.  which of the following structutre controls heart rate monitoring conceratration of co2 and o2 ?…

A: Since you have posted multiple we will solve the first question for you. If you want the specific…

Q: All of the followings are correct, except ---------------------. A. The mean blood pressure…

A: Blood is the fluid that transports oxygen and nutrients to the cells and carries away carbon dioxide…

Q: The onset of Ventricular diastole is associated with: A. the closing of the aortic valve B. the…

A: Each and every cell of the body needs to exchange substances such as nutrients, oxygen, and many…

Q: 3) which of the following is the correct sequence of events during ventricular systole? 1- AV valves…

A: The human heart's activity from the start of one heartbeat to the start of the next is known as the…

Q: 26. Surgically providing a detour to allow blood to flow around a blocked coronary artery is a A.…

A: A coronary artery Bypass surgery is done when a coronary artery is occluded, and it establishes a…

Q: Which of the following is true about the pacemaker potential in the heart? a. Decreased K+ efflux…

A: The pacemaker potential, also known as the prepotential, is the slow, positive increase in voltage…

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: All of the following mechanisms assist in returning venous blood to the heart except: a. an increase…

A: The cardiovascular system of the body that comprises the blood vessels, heart, and blood is…

Q: ____ carry blood away from the heart and ____ carry blood toward the heart. a. Veins . . . arteries…

A: Step 1 Blood vessels are tubes carrying blood, associated oxygen, nutrients, water, as well as…

Q: All of the following are true of the anatomy of the heart except A. The epicardium has a serous…

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

Q: In a non-innervated heart Preload will increase:     A. Peripheral resistance.   B. Aortic…

A: NON INNERVATED HEART : non innervated heart means when heart is deficient of sympathetic and para…

Q: All of the following are true of the conduction system of the heart except A. The SA node is known…

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

Q: Age-related changes in the heart’s electrical conduction system such as fibrosis and loss of…

A: The term "electrical conduction system" describes the network of specific cells and tissues in 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: Which of the following statements is true about the SA (sinoatrial) node? a. The action potential…

A: The sinoatrial node ( SA node ) is a group of cells located in the wall of the right atrium of the…

Q: Given these structures of the conducting system of the heart:(1) atrioventricular bundle (4)…

A: The heart is the muscular organ about the size of our fist located just behind and its notch bit…

Q: In ventricular fibrillation, there is no pattern visible in the EKG. What does this mean in terms of…

A: Venticular fibrillation produces irregular electrical signals in the muscles of the ventricles .

Q: 1. Match the heart structure with the description. Mediastinum A. The thinner, more delicate…

A: The heart is the organ of the human body that is responsible for pumping the blood and helps in its…

Q: which of the following is TRUE for a cardiac cycle?    a. it only includes pressure changes that…

A: The cardiac cycle is the mechanism performed by the heart from the commencement of one heartbeat to…

Q: Which of the following is/are true concerning the opening and closing of the cardiac valves? A.…

A: Backward blood flow is prevented by the valves. On each end of the two ventricles are flaps that act…

Q: The onset of Ventricular diastole is associated with: A. the closing of the aortic valve B. the…

A: Human heart is composed of two auricles (atria) and two ventricles. Cardiac cycle consists of…

Q: Match the following:   ?  Myocardium  ? Parietal Pericardium   ? Endocardium  ?    Visceral…

A: Step 1 The heart is a hollow, fibromuscular conical pyramidal mesodermal organ that lies obliquely…

Q: 18. Under the microscope, I can see a section through one of the chambers of the heart. The…

A: The heart is a vital organ which is a large, muscular organ that pumps blood filled with oxygen and…

Q: The heart’s internal pacemaker beats by: a. an internal implant that sends an electrical impulse…

A: The heart is a muscular organ in numerous animals, which siphons blood through the veins of the…

Q: 1. Specific cavity where the heart is located A. Aorta 2. Tissue of the heart that attaches to the…

A: The heart is responsible for the pumping of blood; in this, blood travels through various types of…

Q: All of the followings are correct, except--------------------------------. A. Pulmonary circuit of…

A: The vascular system or circulatory system helps to circulate the blood in the body. It consists of…

Q: All of the followings are incorrect, except ---------------------. A. The mean blood pressure…

A: A)The mean blood pressure decreases with distance from the heart.Near the heart, pressure is higher…

Q: 1.Outline the flow of blood through the heart starting with largest veins. Include all chambers,…

A: The heart is a muscular organ that is located just behind the breastbone. It pumps blood through the…

Q: 22. In the cardiac cycle, the occurrence of the diastole is most likely indicated at which of the…

A: Answer: B

Dissection

Dissection is the process of cutting up the tissue of a dead or live animal or plant, to do anatomical studies and surgical treatments. The purpose of dissection is to learn more about the overall structure of organs and organ systems and thereby understand the physiology of the organism.