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[PhysioEX Chapter 7 exercise 3] PEX-07-03

Solved by ramonistry Exercise 7: Respiratory System Mechanics: Activity 3: Effect of Surfactant and Intrapleural Pressure on Respiration Lab Report Pre-lab Quiz Results You scored 100% by answering 5 out of 5 questions correctly. Which of the following statements about surface tension is false? You correctly answered: c. Surface tension acts to increase the size of the alveoli within the lungs. Which of the following statements about surfactant is false? You correctly answered: d. Surfactant works by increasing the attraction of water molecules to each other. Just before an inspiration begins, the pressure within the intrapleural cavity You correctly answered: b. is less than the pressure within the alveoli. The respiratory condition of pneumothorax refers to You correctly answered: c. any opening that equalizes the intrapleural pressure with the atmospheric pressure. A pneumothorax can lead to You correctly answered: b. atelectasis. Experiment Results Predict ...
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[PhysioEX Chapter 1 exercise 3] PEX-01-03

Solved by ramonistry Exercise 1: Cell Transport Mechanisms and Permeability: Activity 3: Simulating Osmotic Pressure Lab Report Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. Which of the following is true of osmosis? You correctly answered: c. It is a type of diffusion. Which of the following occurs when a hypertonic solution is added to cells? You correctly answered: d. The cells shrink. The variable that affects osmotic pressure is You correctly answered: a. the concentration of nondiffusing solutes. The net movement of water would be into the cell in a You correctly answered: b. hypotonic solution. Experiment Results Predict Question: Predict Question 1: What effect do you think increasing the Na+ Cl- concentration will have? Your answer : a. increased pressure Predict Question 2: What do you think will be the pressure result of the current experimental conditions? Your answer : c. pressure above the left beaker Stop & Think Questio...
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[PhysioEX Chapter 5 exercise 7] PEX-05-07

Solved by ramonistry Exercise 5: Cardiovascular Dynamics: Activity 7: Compensation in Pathological Cardiovascular Conditions Lab Report Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. Which of the following could cause an increase in peripheral resistance in the blood vessel? You correctly answered: b. atherosclerosis Which structures in the heart ensure that one-way flow occurs? You correctly answered: d. valves Which of the following might be seen in both the diseased heart and the athlete's heart? You correctly answered: c. thicker myocardium The type of resistance increased in aortic valve stenosis is You correctly answered: d. increased left-ventricular afterload. Experiment Results Predict Question: Predict Question 1: You will now test three mechanisms to compensate for the decrease in flow rate caused by the decreased flow tube radius. Which mechanism do you think will have the greatest compensatory effect? Your answer : c. d...
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