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Describe the purpose (and advantages) of a double circulation (“2 pump” circulatory system)
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- When the alary muscles contract, the hemolymph is forced through the aorta into the head. Upon relaxation, the hemolymph enters the heart through the ostia. Once the hemolymph leaves the aorta, it fills the perineural and perivisceral sinuses, bathing the internal organs at the same time. Present your understanding of this concept through a diagram in the activity worksheet.note whether the statements below are consistent with an open or closed circulatory system. The circulating fluid flows in one direction (unidirectionally) through a circulatory loop. The circulating fluid is called hemolymph. Ostia are pores in the heart, important for circulatory function. The circulating fluid is called blood. The circulating fluid remains in vessels as it moves throughout the organism. Is the more efficient type of circulatory system.Which of the following is the correct sequence of blood flow through pulmonary circulation? Group of answer choices Right atrium → right ventricle → pulmonary arteries → pulmonary capillaries (in lungs) → pulmonary veins → left atrium Left atrium → left ventricle → pulmonary arteries → pulmonary capillaries (in lungs) → pulmonary veins → right atrium Right atrium → right ventricle → pulmonary capillaries (in lungs) → pulmonary arteries → pulmonary veins → left atrium Left atrium → left ventricle → pulmonary capillaries (in lungs) → pulmonary arteries → pulmonary veins → right atrium Left atrium → left ventricle → pulmonary veins → pulmonary arteries → pulmonary capillaries (in lungs) → right atrium
- The English physiologist William Harvey made all of the following circulatory discoveries except: both pulmonary and systemic blood pressure comes from pumping of the heart the function of valves in the veins is to direct blood flow back to the heart blood in the arteries is under more pressure than is blood in the veins arterial pressure is greatest during diastole and lowest during systole the function of the vertebrate heart is to pump blood continuouslyCritically ill patients in a cardiovascular intensive care unit must be intensely monitored for any number of conditions. One of these conditions is hypoperfusion, which is an overall decrease in blood flow throughout the body. Low stroke volume is one indicator of hypoperfusion. The pressure-volume (PV) graph below shows three possible loops for the heart. The control loop shows a healthy heart while the other two loops show reduced or increased preload (assuming that afterload and contractility remain fixed). 200 LV Pressure (mmHg) 100 Preload Control ↑ Preload 100 LV Volume (ml) (a) What is the stroke volume for the control patient? RK '15 200 (b) A healthy heart rate (HR) is measured as 80 beats per minute. What is the control patient's cardiac output CO? Control patient's CO: mL minAn artificial heart works in closed loop by varying its pumping rate according to changes in signals from the recipient's nervous system. For feedback compensation design it is important to know the heart's open-loop transfer function. To identify this transfer function, an artificial heart is implanted in a calf while the main parts of the original heart are left in place. Then the atrial pumping rate in the original heart is measured while step input changes are effected on the artificial heart. It has been found that. in general, the obtained response closely resembles that of a second-order system. In one such experiment it was found that the step response has a %OS = 30% and a time of first peak 7, 127 sec (Nakamura, 2002). Find the corresponding transfer function. Aside from the corresponding transfer function, determine the following as well: delay time, rise time, settling time and steady state error if input is a step response. CO M
- The circulatory system has 5 functions. · Highlight the statements below that are only functions of the circulatory system. It carries cells that help to fight diseases. It gives structure and support to the body. It carries waste products to the urinary system. It carries carbon dioxide from cells to the lungs. It maintains body posture. It carries nutrients from the digestive system to other cells. It carries oxygen from the lungs to other cells.As blood goes from the left ventricle through the arteries and veins of the human body, both its speed and pressure change. The arteries and arterioles can either constrict, reducing the area, or dilate, increasing the area, in response to certain conditions. Both of these changes can affect blood flow and blood pressure. An artery can also develop a permanent narrow area (stenosis) or a permanent wide area (aneurysm). Both of these changes can have significant health consequences. Suppose that in response to some stimulus a small blood vessel narrows to 90% of its original diameter. If there is no change in the pressure across the vessel, what is the ratio of the new volume flow rate to the original flow rate?A. 0.66 B. 0.73 C. 0.81 D. 0.90In humans the wall of the left ventricle is thicker than that of the right ventricle. This adaptation is due to the fact that the left ventricle Select one: O a. pumps blood to the extremities of the body O b. pumps blood that is low in oxygen content O C. is smaller than the right ventricle O d. pumps blood to the left and right lungs
- Which of the following statements best describes systolic blood pressure? Systolic blood pressure depends upon the force of the heart contractions - the stronger the contractions the higher the systolic pressure will be. Systolic blood pressure depends on how tightly the cuff of the sphygmomanometer is tightened. Systolic blood pressure depends upon the resistance of the blood vessels - the greater the resistance to blood flow the higher the systolic pressure will be. Systolic blood pressure depends upon the force and frequency of the heart contractions - the stronger and more frequent the contractions the higher the systolic pressure will be.*DO NOT COPY AND PASTE THE ANSWER THAT CHEGG HAS FOR THIS QUESTION. I HAVE ASKED THIS QUESTION AND THE "EXPERT" COPIED AND PASTED THE ANSWER FROM CHEGG. PLEASE ACTUALLY SOLVE THIS PROBLEM, OR I'LL JUST HAVE TO CANCEL MY BARTLEBY SUBSCRIPTION. Hello, please answer the following Physiology question completely and correctly. Thank you. Physiology Question Based On Attached ECG: "On the pressure curve label the stretches on the ventricular curve that represent the 5 different phases of the cardiac cycle. Also, label where they are closing. Where would the AV valves be opening and where would the semilunar valves be opening?"1 paragraph describing the lead concept for blood pressure machines 1 paragraph indicating the concept’s regulatory pathway for blood pressure machines 1 paragraph with 5 regulatory questions you’d like to discuss for blood pressure machines concept
