QUESTION 11 Which of the following explains why blood pressure is lower in a child than in an adult? O viscosity increases as we age O blood vessel radius increases as we age O the heart contractility is higher in children than adults O blood vessel length is much shorter in children than adults O children have more widespread vasoconstriction than adults

Q: True or False? With age, the walls of the arteries become more elastic, making it harder to maintain…

A: Arteries are the blood vessels that carry  blood away from the heart. Its walls are quite elastic.…

Q: Lub/b sound is produced by the closure of the valves.

A: Heart is the muscular organ and is the main part of the circulatory or cardiovascular system. Heart…

Q: Consider a typical mammalian cell to be a cube of 8 μm on edge. Compute thevolume of the cell in cm3

A: The problem is asking us to calculate the volume of a mammalian cell that is shaped like a cube. The…

Q: The following are parts of the heart's conduction system, which is not? Select the correct response:…

A: The conduction system of the heart refers to the group of specialized cells that can undergo…

Q: Question 56 When are the semilunar valves closing? when the atrioventricular valves are closed when…

A: Heart is the major organ of the cardiovascular system. It is the mesodermally derived organ and…

Q: QUESTION 6 Where are arterial anastomoses NOT common? O heart O brain O joints

A: An arterial anastomosis is a connection or opening between two or more arteries. It is a natural or…

Q: Which of the following statements regarding the respiratory system is not correct? Trachea is lined…

A: The air reaches the lungs through the windpipe known as the trachea. It initiates just next to the…

Q: Hydrogen ions are buffered in the venous blood of systemic circulation by. water carbonic acid…

A: The acid-base balance in the body is regulated by maintaining the pH balance of the body. Buffer is…

Q: 3. Chronic alcoholism damages the liver. In people who have alcohol-induced liver damage, the blood…

A: Introduction Excess fluid trapped in your body's tissues causes edoema, which causes swelling.

Q: In an ECG, the beginning of the P-wave corresponds to: The depolarization of the ventricles O The…

A: The human heart is a muscular pumping organ that is a 4 chambered structure. It is made of auricles…

Q: QUESTION 8 What causes hemorrhoids? O tiny capillaries in the eye that burst from excessive pressure…

A: Hemorrhoids, also known as piles, are swollen veins in the lowest part of your rectum and anus.…

Q: QUESTION 7 What are vasa vasorum? O tiny continuous capillaries found only in the external part of…

A: Vasa vasorum are small blood vessels that supply oxygen and nutrients to the walls of large arteries…

Q: At any given time in mammals, a majority of blood in the body is found in the O heart arteries O…

A: The correct Option for the answer for the question is Option D:- VEINS.

Q: Immediate branches of the aorta are:

A: The aorta is the primary section of the systemic blood vessel circulation, starting specifically…

Q: itroglycerin treat angina?

A: Pain in the chest due to reduced flow of blood to the heart is known as angina pectoris.…

Q: Which of the following is the THICKEST? Right ventricle endocardium Right atrial epicardium Right…

A: * Heart is the main pumping organ in body.The function of heart is to pump blood throughout the body…

Q: Question 9 Twave represents O ventricular repolarization O atrial depolarization ventricular…

A: The electrocardiogram has P, Q, R, S and T wave.

Q: Using this diagram and the points indicated (A, B, C) please explain how to treat congestive heart…

A: A chronic progressive condition affecting the cardiac muscle's pumping power is Congestive heart…

Q: If the value of the intrapleural pressure decreases, then the elastic recoil of the chest wall will…

A: Boyle’s law describes the relationship between volume and pressure in a gas at a constant…

Q: Question 57 What vessels make up the circle of Willis? Left and right external carotid arteries Left…

A: The circle of Willis is an important arterial junction located at the base of the brain. It helps to…

Q: Which of the following does NOT empt O pulmonary vein O superior vena cava O inferior vena cava…

A: There are two systems of blood flow- pulmonary circulation and systemic circulation. There are two…

Q: D Question 2 What is true regarding cardiac pacemaker cells (i.e. SA node) O Sodium inflow causes…

A: Cardiac pacemaker cells are specialized cardiac muscle cells responsible for generating and…

Q: od pressure using a blood pressure cuff on yo

A: Blood pressure is measured in mm Hg, normal blood pressure of an healthy adult is systolic pressure…

Q: Question 12 Stimulation of the Vagus nerve will: O A. Slow AV conduction velocity. OB. Slow heart…

A: One of the cranial nerves in the human body, specifically the tenth cranial nerve (CN X), is the…

Q: QUESTION 22 In capillaries of systemic circulation, carbonic anhydrase converts into carbonic acid /…

A: The carbon dioxide that is produced by cellular respiration by different tissues, must be…

Q: QUESTION 29 Which of the following general blood transport mechanisms is mismatched? oxygen gas -…

A: we have different forms of transport in the body . gases and chemicals will get transported from…

Q: Which of the following enzymes is found in high concentration in the endothelial cells of the…

A: Enzymes are biological catalysts, that enhance the metabolic activities and increase the rate of…

Q: QUESTION 8 Which sequence is correct regarding the direction of blood flow through the…

A: The cardiovascular system refers to the heart, blood vessels and blood. The main functions of…

Q: ginning in the pulmonary trunk, which of the following rep O arteries, arterioles, capillaries,…

A: There are five types of blood vessels are arteries, arterioles, Capillaries, venules, and veins.…

Q: After leaving our left ventricle, blood next passes through the Select the correct response:…

A: The heart is a fist sized organ that is  made up of four chambers two upper : left and  right…

Q: QUESTION 3 Stents can be used to: Mechanically break up blood clots Block off narrowed arteries O…

A: The blood can be described as the body fluid that can be found in the extracellular region. It is…

Q: QUESTION 3 A systemic capillary has a hydraulic pressure of 25 mm Hg at the arteriole side and a…

A: The cardiovascular system, a division of the circulatory system, is a vital body system that…

Q: An increase in carbon dioxide would do which of the following in arterioles? cause vasoconstriction…

A: Breathing is a process in which oxygen is taken in and carbondioxide is exhaled out. During cellular…

Q: ous blood pressure are

A: Venous pressure is defined as the pressure in the veins  of the heart  and it is much lower than…

Q: QUESTION 4 The pulmonary circuit of the circulatory system has left atrium, left ventricle, right…

A:

Q: The potential depicted in the figure was recorded from the of the heart. D 20 -20 -40 -60 TIME A…

A: The cells included in the sinoatrial (SA) node are considered the primary pacemaker site within the…

Q: Question 7 These can explain why men have a higher hematocrit than women except: plasma than women…

A: Hematocrit is the volume of the blood that contains red blood cells ( RBCs ). A low hematocrit…

Q: Which of the following would transport oxygen rich blood? O venules O capillaries O aorta O…

A: The body uses oxygen for cellular respiration and gives out carbon dioxide  The blood is responsible…

Q: A central artery (arteriole) is contained within O PALS O a medullary sinus O a medullary cord O…

A: In the human body, the resistance against the entry of any foreign particle or antigens is executed…

Q: Question 44 Concerning pulmonary circulation, which of these is NOT tr The pulmonary veins carry…

A: Location of heart :- Heart is a mesodermal origin. It is located in the thoracic (chest)…

Q: Which sequence is correct regarding the direction of blood flow through the cardiovascular system: O…

A: The human circulatory system is one of the major eleven organ systems in the human body and is…