Physioex 9.0 is a laboratory simulation software that allows students to perform virtual experiments and observe the physiological processes of the human body. Exercise 12 of Physioex 9.0 focuses on the respiratory system, specifically the mechanics of breathing and gas exchange.
In Activity 2 of Exercise 12, students are asked to examine the effects of varying respiratory volumes on alveolar ventilation and carbon dioxide production. Alveolar ventilation refers to the volume of air that moves in and out of the alveoli, the small air sacs in the lungs where gas exchange occurs. Carbon dioxide is produced as a byproduct of cellular metabolism and must be exhaled from the body.
To begin the activity, students are asked to set the respiratory volume to a low value and observe the results. They will likely see that at a low respiratory volume, alveolar ventilation is decreased and carbon dioxide production is increased. This is because the lower respiratory volume means there is less air entering and leaving the alveoli, leading to less efficient gas exchange and an accumulation of carbon dioxide in the body.
Next, students are asked to increase the respiratory volume and observe the results. They will likely see that as the respiratory volume increases, alveolar ventilation also increases and carbon dioxide production decreases. This is because the increased respiratory volume allows for more air to enter and leave the alveoli, resulting in better gas exchange and a decrease in carbon dioxide production.
Overall, the results of Activity 2 demonstrate the important role that respiratory volume plays in regulating alveolar ventilation and carbon dioxide production. By controlling the volume of air that moves in and out of the lungs, the body is able to maintain proper gas exchange and maintain homeostasis.
It is worth noting that this is just a brief overview of the concepts covered in Activity 2 of Exercise 12 in Physioex 9.0. To fully understand the material, it is important to carefully read and follow the instructions in the software, as well as review the accompanying textbook and lectures.
PhysioEx Exercise 9 Activity 2
Your answer: 80-100 mm muscle lengths. What range of skeletal muscle lengths generated passive force? Define the terms skeletal muscle fiber, motor unit, skeletal muscle twitch, electrical stimulus, and latent period. Learn vocabulary, terms, and more with flashcards, games, and other study tools. The glucose transport rate will increase. Experiment Data: Run Number 1 1 2 2 3 3 4 4 6 6 8 8 Solute Na+ ClGlucose Na+ ClGlucose Na+ ClGlucose Na+ ClGlucose Na+ ClGlucose Na+ ClGlucose Start Conc. Rename this document to include your first and last name prior to submitting, e.
Your answer: it diffuses to the muscle fiber's membrane and binds to receptors in the motor endplate and make electric potential. During an isotonic concentric contraction You correctly answered: b. How well did the results compare with your prediction? Your answer : d. Which of the following is not a phase of a skeletal muscle twitch? Please make sure that your answers are typed in RED. The term skeletal muscle fiber refers to You correctly answered: a.
What is the lowest stimulus voltage that induces active force in the skeletal muscle? Simultaneously, the muscle is maximally stimulated by 8. Experiment Results Predict Question: Predict Question: As the stimulus frequency increases further, what will happen to the muscle tension and twitch appearance with each successive stimulus? Drag the first slide patient A to the fluorescent microscope. There will be no change in the glucose transport rate. The size of the thoracic cavity increases. Your answer: Maximal shortening velocity is only attained with a minimal load.
This phenomenon is known as You correctly answered: c. The latent period will decrease, the shortening velocity will decrease, the distance will increase, and the contraction duration will increase. Maximal active tension will be produced in a skeletal muscle fiber when You correctly answered: a. You correctly answered: a. Why was a maximal voltage observed in this experiment? Your answer: all of the muscle fibers in the skeletal muscle became depolarized and all makes active force. Your answer: When stimulating the isolated skeletal muscle multiple times in a short period with complete relaxation between, each force between each stimulus increased slightly in step like form to a max peak.
Your answer : b. Does the duration of the latent period change with different stimulus voltages? What is the glomerular filtration rate? The buildup of lactic acid, ADP, and Pi in the muscle fibers as well as Calcium levels decreasing. Explain why the latent period became longer as the load became heavier in the experiment. You correctly answered: a. Motor unit- is one motor neuron and all the skeletal muscle fibers it innervates.
From the drop-down menu, choose Exercise 9: Renal. Exercise 2: Skeletal Muscle Physiology: Activity 4: Tetanus in Isolated Skeletal Muscle Lab Report Pre-lab Quiz Results You scored 100% by answering 3 out of 3 questions correctly. How well did the results compare with your prediction? Exam May Summer 2018, answers Civil rights emily - Grade: A 24 Hour Recall Lab - Foundations of Nutrition Science Laboratory VIC 3400 Test 1 Study Bible Discussion 1 Physiology PEX-01-02 - Lab report exorcise 1 -2 Physiology lab 9. You correctly answered: c. You correctly answered: d. You correctly answered: d. What happens to the amount of total force the muscle generates during the stimulated twitch? Which of the following processes does not occur during inspiration? Describe the three phases of a skeletal muscle twitch.
Explain why the shortening velocity became slower as the load became heavier in this experiment. All the above are correct. You correctly answered: b. Your answer: Na+ Cl- will not affect the rate of glucose transport, because Na+ Cl- is transported by simple diffusion. Fused tetanus develops at this greater stimulus frequency.
Nga Tuyet Kim IVC ID: 255636 Physioex 9. True or False: In a resting skeletal muscle cell, most of the calcium ions freely move through the False cytoplasm of the cell. Will there be a limit to this response? Turning the stimulator off allows a small measure of muscle recovery. Describe the conditions that resulted in the fastest rate of glucose transport. Explain one way in which facilitated diffusion is the same as simple diffusion and one way in which it is different from simple diffusion. You correctly answered: d. Your answer : b.
What happened in the isolated skeletal muscle when the maximal voltage was applied? How well did the results compare with your prediction? Describe how the shortening distance changed as the load became heavier in this experiment. Yes, it is greater than the previous stimulations. In order to get 5. Note that a decrease in maximal force indicates muscle fatigue is developing. Will the muscle generate force? Simultaneously, the muscle is B- if the platform that supports the weight is removed and the maximally stimulated by 8.