QUESTION 45 Given that stroke volume equals 100 mL, which of the following statements is correct? The end systolic volume = 100 mL and the end diastolic volume = 300 mL The end diastolic volume = 200 ml and the end systolic volume = 100 mL The end diastolic volume = 100 mL and the end systolic volume = 200 mL O The end systolic volume = 50 mL and the end diastolic volume = 50 mL

Q: Which types of muscle can be inhibited? only smooth muscle smooth and cardiac only skeletal muscle O…

A: Muscles are the most essential structural components of the human body responsible for movement,…

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: Which chamber of the heart forms the base? Left atrium O Right ventricle O Right atrium O Left…

A: In the human anatomy, the heart is considered a muscular organ located in front and middle of the…

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: Physiology Question Based On Attached ECG: "On the volume curb, label EDV and ESV as well as label…

A: An ECG is a test that measures the electrical activity of the heart. It is performed to check the…

Q: Question 10 Hemostasis. Which factor when activated converts prothrombin into thrombin? O II O VI O…

A: The process that helps in changing the circulating substances present in the blood to an insoluble…

Q: Why do peripheral arteries lack the valves that are commonly present in peripheral veins?…

A: Heart is the principal organ of the circulatory system. Heart pumps blood and keeps it flowing…

Q: QUESTION 15 What wave represents ventricular repolarization? N K -A- M В LABEL L O LABELJ LABEL N…

A: Ventricular repolarization is basically the complex electrical phenomena that is represented by a…

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: Place each of the following layers of the pericardial sac and the heart wall in order beginning with…

A: Heart is a pumping structure and is a part of cardiovascular system that helps in sending oxygen…

Q: Question: Identify the TRUE statement (s). There may be several correct answers, A. An increased…

A: Cardiac output: The cardiac output is the amount of blood pumped into the aorta by the heart per…

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: Question 56 When are the semilunar valves closing? O when the atria are relaxing O when the…

A: The cardiovascular system can be thought of as the transport system of the body. It consists of…

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: Explain how the manifold design of arteries and arterioles/capillaries regulate velocity of blood…

A: Arteries are large blood vessels that carry oxygenated blood away from the heart to the organs and…

Q: 16. Identify the vessel at the arrow AND explain and discuss its functional importance.

A: The blood vessels comprising the human circulatory system are of three types: arteries, veins, and…

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 5 Which of the following statements about venous blood pressure are true? Select ALL…

A: Venous blood pressure occurs inside the veins.  Veins carry deoxygenated blood from all parts of the…

Q: Which is NOT a factor that increases stroke volume with endurance training.       Reduced cardiac…

A: ANSWER;- Reduced cardiac and arterial stiffness is not a factor that increases stroke volume with…

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 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: 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 10 Vascular Responses 2 The rate-pressure product is an index of a. myocardial metabolism…

A: The product of heart rate (number of times the heart beats per minute) and systolic blood pressure…

Q: I cannot understand meaning of adjacent cells and also struggling with drawing annotation. May I see…

A: Explanation In the context of cardiac muscle cells, adjacent cells are those that are lined up side…

Q: Question 9 Smooth muscle is responsible for vasoconstriction. True False

A: Cells are the basic structural and functional unit of all known organisms which help in the process…

Q: At the point labeled E the 120 В Aortic pressure 60 A DE Atrial pressure Ventricular pressure O…

A: The heart is divided into left and right sides separated by a septum. Both the sides are divided…

Q: Question 1: In Coronary Artery Disease (CAD), the coronary arteries become hardened and plaque…

A: Introduction: For the effective functioning of the heart, the myocardium must receive an…

Q: 5. Would defibrillation be recommended for someone producing this electrocardiogram? yes no

A: Electrocardiogram(ECG or EKG) is a medical test that is used in recording the electrical signals…

Q: Which of the following occurs to break up a clot after a vessel has healed? O tissue plasminogen…

A: Hemostasis is the natural process by which blood loss stops or ceases after an injury. It includes…

Muscle Action

A change in the body or a bodily organ as a result of its functioning is referred to as an action. Muscle action can be defined as the specific movement of a bodily part generated by the contraction of a muscle. The muscle proteins actin and myosin are the important contractile proteins involved in muscle action. Muscle contraction, in addition to movement, serves several other important functions in the body, including posture, heat generation, and joint stability. Muscle contraction maintains posture, which includes standing and sitting.