Nasty Lab Report 5 - Crayfish Physiology Lab Lab 5...

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Crayfish Physiology Lab Lab 5 Christopher Chu Wednesday 6:00pm – 10:00 pm Objectives A) To observe the ventilation process in a gilled organism B) To observe a crayfish’s rate of ventilation when oxygen concentration is high and when  oxygen concentration is low. C) To measure the ventilation volume per gram of the crayfish. D) Measure the heart rate and blood pressure in a human E) Determine the effects of reduced oxygen on heart rate. F) Measure the effects of high muscle activity on blood pressure. Procedure First, we set up the crayfish breathing apparatus. This is done by placing the crayfish in a rubber  sleeve and then placing the crayfish in a water tank in which the inside of the water is separated  from his gills by a semi-permeable rubber membrane.  So, when the crayfish pumps water into  the section containing his gills the amount of water he pumps is directly correlated with his  breathing rate. We then measured the amount of water pumped in a high oxygen concentrated  environment, a low oxygen concentrated environment, and then again in a high oxygen 
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Nasty Lab Report 5 - Crayfish Physiology Lab Lab 5...

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