Deep sea divers coming up too fast experience a data medical condition called decompression sickness or bends, which is the result of dissolved nitrogen in the body tissues coming out in the form of bubbles. Give a detailed explanation of the origin of this situation.
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Deep sea divers coming up too fast experience a data medical condition called decompression sickness or bends, which is the result of dissolved nitrogen in the body tissues coming out in the form of bubbles. Give a detailed explanation of the origin of this situation.
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- Divers who go to great depths in the ocean experience large differences in pressure between the surface and their final destinations below the surface. At times, they have to avoid quick changes in pressure because of the effects on the solubility of nitrogen in their blood. If the solubility decreases quickly, then gas bubbles can form in the person’s blood, causing a dangerous condition called “the bends.” In one or two sentences, state whether you would expect the condition to be a greater hazard for divers as they dive down or as they return to the surface. Then, explain your prediction in terms of the solubility of gases in liquids at different pressures.Dissolved oxygen levels are higher in calm bodies of water. True or False?Decompression sickness a.k.a. the bends results from a. the blocking of tiny vessels by bubbles b. the blocking of tiny vessels by bubbles and nitrogen leaving the plasma solution to quickly c. diving into the deep too fast d. nitrogen leaving the plasma solution to quickly
- Explain why the intrapleural pressure is always subatmospheric.State whether the following factors would tend to increase or decrease the amount of dissolved oxygen in water or neither. Lowering the temperature [ Choose ] Pesticides [ Choose ] Phosphate containing chemicals [ Choose ] Organic waste [ Choose ] Plastics [ Choose ] Waterfalls [ Choose ] F10 >Interpret the chemical reaction discussed in this section toexplain the effect of hyperventilation or hypoventilationon blood pH.
- You receive animal care and use committee approval to catch a fish, prop open its operculum (gill cover), tie a string around its tail, and tow it backwards through the water for experimental purposes. The fish is then released unharmed. This action forces water to flow backwards over the gill filaments and in between the gill lamellae. What effect would this backwards water flow have on respiration? It would reduce efficiency of gas exchange between water and blood The only effect would be due to the fish's discomfort from this treatment. O It would improve efficiency of gas exchange between water and blood1) A diver decides to take a balloon with him on a scuba diving excursion to a depth of 10m. The size (volume) of the balloon would _____. A) remain the same throughout the dive B) decrease on the way down and return to its original size on the way back up C) increase on the way down and shrink back to its original size on the way back up 2) How does the size of the air bladder compare between freshwater and salt water fish? A) freshwater fish have larger air bladders because they need to be less dense B) freshwater fish have smaller air bladders because they need to be less dense C) saltwater fish have larger air bladders because they need to be less dense D) freshwater and salt water fish have the same size air bladders because the air bladders play no role in osmoregulation or maintaining salt balance 2) Physoclistous fish fill their air bladders by _____. A) going to the surface and gulping air B) using the carbon dioxide that they produce through aerobic metabolism C)…Increasing ventilation to remove accumulating CO2 in the blood will Increase the concentration of H+ Raise pH Shift the transport of CO2 to primarily the dissolved state Lower pH
- Based on the physical laws of evaporation, explain why the highbody temperatures of mammals and birds make them prone tohaving higher rates of evaporative water loss than poikilothermicterrestrial vertebrates with lower body temperatures.Discuss how the transition from water to land of vertebrates gradually changed the respiratory system that even allowed most birds to fly in high altitudes without experiencing hypoxia.Define the following terms: a. uric acid b. allantoin c. allantoate d. urate oxidase e. allantoicase