QUESTION 5 Which of the following statements about venous blood pressure are true? Select ALL correct answers: Pressure in veins is much lower than pressure in arteries Arterial blood pressure fluctuates as the heart squeezes and relaxes, but venous blood pressure does not Valves in veins help prevent blood from flowing backward Contraction of skeletal muscles in the legs helps move venous blood back up towards the heart

Q: QUESTION 5 The long term solution to a problem with blood pressure (MAP too high or too low)…

A: The blood that circulates in the arteries exterts pressure on the walls that they circulate in. The…

Q: Which of the following is TRUE concerning blood distribution within the body?   Question 22…

A: Blood is the major body fluid in our body that plays a major role in circulation and transportation…

Q: What would you expect to occur in heart failure?

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Q: Based on your data, how was your heart rate different during the first and last 10 seconds…

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

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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 of the following is a normal range found in the human body? O A heartbeat of 60-90 beats/min O…

A: Respiratory rate is number of breaths taken per minute. Heart rate is number of times your heart…

Q: during exercise cardiac output goes up from about 5 mL per liter to about 25 mL per liter. By volume…

A: CARDIAC OUTPUT  ( CO ) -  it is the product of the heart rate ( HR ) that is the number of the heart…

Q: QUESTION 3 Which of the following is one of the vessels which delivers blood to the right atrium?…

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…

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: Phase 1 Phase 2 Phase 3 Phase 0 Phase 4

A: Action potential is a brief change in voltage across the cell membrane in a the heart cells. This…

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: Exercise-induced stress increases cardiac output and vasoconstriction, so why does the amplitude of…

A: Heart rate is defined as the number of times the heart beats per minute. A typical heart rate ranges…

Q: Which are effective treatment options for hypertension?   Select 3 correct answer(s)     Lose…

A: Hypertension (high blood pressure) is a frequent disorder in which the long-term force of blood…

Q: Which of the following would not be a branch of the thoracic aorta?     posterior intercostal…

A: The aorta is the main artery that arises from the heart and then divides further into major arteries…

Q: he left ventricle:   Question 21 options:   Has thinner muscular walls than does the right…

A: Our heart is a muscular organ that is like a fist in its size and is located just behind with…

Q: Explain the term 'cardiac output' and discuss how cardiac output can be altered by heart rate and…

A: Note:- Sticking to our guidelines I have answered only ist three questions. Please ask rest of the…

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: A patient has a heart rate of 60 beats/min, an end diastolic volume of 150mL, and an end systolic…

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

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Q: Please answer all 3 questions below. These are the only questions left. Question 14 Select one…

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

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Q: All of the followings are correct about the myogenic pacemaker except, --------------------- They…

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Q: Smooth muscle is responsible for vasoconstriction. True O False

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Q: mean arterial pressure is a product of  heart rate and cardiac output none of the abouve cardiac…

A: Mean arterial pressure is that average arterial pressure which is present in one cardiac cycle. It…

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: After being rescued from the pool by the lifeguards, Marco now makes his way to the powerlifting…

A: Exercise is the state of doing physical activity by the body involving voluntary movement of the…

Q: Isovolumetric contraction" is a phase in the cardiac cycle in which the volume of a particular heart…

A: Isovolumetric contraction" is a phase in the cardiac cycle in which the volume of a particular heart…

Q: Describe what the following variables are and how each impacts cardiac output: End diastolic volume,…

A: The amount of blood that the muscular thoracic cavity organ called the heart pumps in a minute…

Q: Let's review the electrical events that occur during a heartbeat. Match each phase of the ECG in the…

A: A. The atria depolarize ( P wave)B. The ventricles repolarize (T wave)C. (Diastolic interval; the…

Q: Does arm postion influence blood pressure? explain your answer How does blood pressure and heart…

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

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Q: A B 0 0 3 2 3 5 Time (msec) 5 Time (msec) 7 7 TO 10

A: Oscilloscope tracing in A and B showed a major difference in the rate of contractile activity.

Q: 4. Use the formula for blood pressure, to answer the following: a. If cardiac output increases, then…

A: The blood pressure of normal individual is 120/80 mmHg.  80 mmHg is a diastolic blood pressure.…

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

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Q: It ensures a unidirectional flow of blood between the left ventricle and its associated artery.…

A: Heart is a four chambered organ. Right atria, right ventricle, left atria and left ventricle are the…

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: Inadequate tissue perfusion in hypovolemic shock occurs due to:   Question 9 options:   Decrease…

A: Hypovolemic shock is a medical emergency condition characterized by a severe decrease in the volume…

Q: Put the statements in the correct sequence. Beginning with atrial filling. * gas exchange takes…

A: The circulatory system is comprised of the heart, blood, and blood vessels that help in the…

Q: Question 13 Select one answer. Which of the following are not actually cells but are fragments of…

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Q: Which refers to the thickening and hardening of the arteries caused by plaque build-up?…

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Q: uestion 1 of 17 Il in the blanks: he returns deoxygenated blood from the heart wall back to the…

A: Right side of the heart is the reservoir which contains deoxygenated blood and left side of the…

Q: Identify the bundle of His O under the left ventricles O between the right and left ventricles of…

A: "The bundle of His" is an important part of the electrical conduction system of the heart. It…

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

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Q: What is a difference in membrane potential in the auto-rhythmic vs contractile cardiomyocyte auto:…

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Stress

Stress is defined as the feeling of being overwhelmed or unable to cope with emotional or mental pressure. Any event or action that makes a person annoyed, furious, or nervous can trigger it. Chemical changes in the body caused by stress can cause blood pressure, blood sugar levels, and heart rate to rise.