Neurotransmitter and Maximal Contractile Response Essay

Pinnington, N., Elliott, A., Sciences, F. of L., Manchester and Kingdom, U. (2007) Proceedings of the physiological society. Available at: http://www.physoc.org/proceedings/abstract/Proc%20Physiol%20Soc%208PC39 (Accessed: 3 March 2016).

solutions and recorded our results and placed the Daphnia in the recovery tank. After completing the caffeine series, we obtained a the second set of drugs. This time instead of using caffeine we used varied concentrations of alcohol 2%, 4% and 6% using the same method as the caffeine procedure. Again recording our results and placing the Daphnia in the recovery tank when finished.

C. Based on the graph, was the dosage too high, too low, or just right? Explain.

2. Describe the functional anatomy of the duct system that conveys bile from the liver and digestive juice from the pancreas to the lumen of the

* The nervous phase = this is where the presence of the food within the mouth and the action of swallowing resulted in the reflex stimulation of the mucus cells so that the gastric juice can be released.

What effect would adding HCl or NaOH to the liver or potato have? Clearly explain your reasoning.

Describe the role of the parasympathetic nervous system relative to digestive movements. The PNS is responsible for stimulating digestion by increasing blood flow to the digestive tract. The PNS stimulates salivary gland secretion and increases peristalsis. This increases the

3. What do you think would happen if you reduced the incubation time to 30 minutes for tube 5? _This would reduce digestion in tube 5.__

The dose was calculated from the Handbook of Nonprescription Drugs by taking the mild treatment for dehydration 50 mL/kg. I used this value since TA’s diarrhea was mild. TA’s weight is 14.54 kg; this value is used to get the mL value to administer (727 mL). Then converted to fluid ounces for ease of patient understanding (24.57 fluid ounces). So I took this value and divided it by four hours to get the dose per hour. This resulted to 6.14 fluid ounces which I rounded down to 6 fluid ounces per hour.

is an involuntary restriction of food. The hypothesis suggests that the cycle of food restriction at

Number needed to treat for i.v. acetaminophen was 12.3 (7.6–32.3) for nausea and 14.2 (8.3–

The purpose of this experiment was to identify how open and closed circulatory systems respond to chemical stimulants. During this experiment a ghost shrimp represented the open circulatory system, while the black worm represented the closed circulatory system. For each organism there resting heart rates were recorded by count the number of pulsations the organism had under a microscope. First, the shrimp and the worm were treated with caffeine, and then their heart rate was recorded after the organisms were exposed to the treatment for three minutes. The organisms were removed from the caffeine, and were given time to return back to their resting heart rates. The shrimp and the worm were then exposed to ethanol, and there hear rates were recorded again.

The “Second Brain” scientifically known as the enteric nervous system (ENS), can be found in your gastrointestinal tract and is made up of two thin layers consisting of more than one hundred million nerve cells. It main role is controlling digestion including the release of digestive enzymes, nutrient absorption and the elimination if waste.

3. A few drops of 6 M acetic acid were added until it became basic.

Add 5mL of gastric juices (contains both pepsin solution and HCl) to test tube 3