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Digestive system of different animals
Biology essay on digestion in animals
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I was once a strong resilient grain seed, me and my brothers would bask in the sun all day and at night we would get our much needed water. Then one day the cows got out of the barn and started heading for my brothers and I. Being attached to the stem we could do nothing as we watched our friends in the next stem get eaten alive. As we watched in horror another cow came up from behind and grasped us with its horrible tongue, we were pulled into its cavernous horrible mouth dripping with saliva. Almost instantly my brothers and I were drenched in the horrible liquid lubricating us and impregnated us with saliva. As we were masticated ruthlessly and swallowed we realized that this was a ruminant animal, with this information we came to terms with the fact that we were all going to die and be digested whereas a monogastric animal would have just passed us through basically unharmed.
As we entered the rumen for the first time many of us were lost to the microbes residing within the rumen, this was repeated time and time again shooting us back and forth through the esophagus until o...
“We were sort of like the cactus. We ate irregulary, and when we did, we’d gorge ourselves (Walls, 22)”.
Once steps 2a and 2b are complete taste exhibit A. Swish in mouth and either swallow or spit in sink.
On this particular day in April, the HMS Seahorse, a British Naval vessel returning from the Caribbean, waited in the Boston Harbor. The ship was inspected, given the go-ahead to dock in Boston, and the sailors entered town, passing the printing presses, houses, and various shops. As the men invariably looked for somewhere to rest or eat and drink, one sailor amongst them began to scratch at the sores sprouting within his mouth.
by being with a human it gave you a feeling that there were more animals that
With the horse being a hindgut fermenter, it has single stomach; it is small compared to its body size (takes up 10% capacity). It is small mainly because the horse eats little and often (forages); also in the stomach of the horse, its food is mixed with an enzyme called pepsin which helps to break down protein (hydrochloric acids which will help to break down solid particles), also there is bacteria in the horses stomach that helps to produce lactic acid. The cow is a ruminant, meaning it has a four chambered stomach; the four chambers are the Rumen, the Reticulum, the Omasum and the Abomasum, in which the rumen is the largest chamber of the stomach. The rumen acts as a storage sack for its food because of the size of it. It also absorbs VFA (volatile fatty acids). The cow’s rumen is a large fermentation vat, where more than 200 bacteria and 20 types of protozoa help the cow to utilize fibrous feedstuffs and non-protein nitrogen sources. The rumen contracts once every minute. The contractions allow mixing the of fluid and solid contents in the rumen to stimulate fermentation and avoid stagnation. Contractions also serve to release gases trapped in either the mat/fluid portion of the ruminal contents (the fermentation gases are then released by belching). Disruption of this process can result in bloating. Feed particles of the correct size and density are separated into the fluid in the reticulum and by the ruminal contractions.
The origination of the digestive process occurs prior to the turkey sandwiches introduction in the mouth. The eyes and the nose are the beginning of the digestive process by seeing the food and smelling; this causes a response in this in the brain by nerves stimuli creating a visual and chemical sense. The visual stimulation causes the mouth to activate the salivary glands in preparation for the food. As we commencement to the consumption of a turkey sandwich, consisting of bread, turkey, lettuce, and cheese. Our eyes would see the sandwich, our nose would smell the aroma making our mouth water in anticipation of the food. With the mouthwatering the chemical digestion process has already begun with this secretion of saliva that contains the
“Have you ever eaten a bug?” asked Orson with much curiosity, “Or a hangnail from your finger? You’ve seen kids eat their own dried nasal mucus.”
...ve eaten, to break down the food into a liquid mixture and to slowly empty that liquid mixture into the small intestine. Once the bolus has entered your stomach it begins to be broken down with the help of the strong muscles and gastric juices which are located in the walls of your stomach. The gastric juices are made up of hydrochloric acid, water, and mucus- and the main enzyme inside of your stomach is what is known as pepsin, which needs to be surrounded in an acidic setting in order to do its job, that is to break down protein. Once the bolus has been inside of your stomach for long enough it begins to form into a liquid called chyme, and what keeps the chyme from flowing back into our esophagus are ring shaped muscles known as sphincters located at the beginnings and ends of the stomach and they have the task of controlling the flow of solids and liquids.
Have you ever wondered where your food has gone once you consume it? Through your digestive system where the mass of food undergoes a process called digestion. Digestion is the chemical and physical breakdown of food into forms such as energy or nutrients that can be used by the body’s cells (McKenzie, 2010). The whole process starts in the mouth. The mouth contains a watery substance called saliva. Saliva is important to the whole process of food digestion, because not only does it help with sensing taste, but it is also made up of enzymes that break down the fats and starches in food at a molecular level. The esophagus is a tube where swallowed food travels down to the stomach. The stomach is a muscular sac that acts as a blender and mixes food with acid, hydrochloric acid, which breaks down the swallowed chum and flushes the nutrients into the small intestine (Columbia University, 2010). The hydrochloric acid in the stomach is so powerful it can eat through a leather shoe. However, the stomach contains other chemicals, such as gastric acid, mucus and enzymes that also soften food (Sullivan, 2008). The result thus far in the process of digestion in the stomach is now called chime (Sullivan,
The human digestion system is very complex. It starts with the mouth, salivary glands, pharynx, esophagus, stomach, liver, pancreas, gallbladder, small intestine, large intestine, then ends/exits with the anus. Each step is essential to the whole system. For example, the mouth chews food and mixes it with saliva produced by the salivary glands, and then the pharynx swallows chewed food mixed with saliva, this is followed by the food traveling through the esophagus to the stomach where the food gets a bath and mixes with acids and enzymes. After the stomach, the liver, pancreas, and gallbladder produce, stores, and releases bile and bicarbonates. Bile is produced in the liver and aids in digestion and absorption of fat while the gallbladder stores bile and releases it into the small intestine when needed. Following the process into the small intestine, this is where nutrients will be absorbed into the blood or lymph (most digestion occurs here). Next is the large intestine this is where water and some vitamins and minerals are absorbed. Finally, it is the end of the road, the anus. At...
Long ago there was man living in South America known as Billy, he was a mean, furious and cruel man. He soon rose to king because everyone feared him. After a year of being king he ruled almost all of South America. He treat all of the people living there like trash. He didn't feed the hungry, he did not help the poor. After two year of this mistreatment the great and powerful god named Cletus came down and told king Billy if he could not feed all of the hungry and help all of the people in need he would turn him into a animal. Billy at first did not believe the god because he had reasons to not trust him. But one day as a boat of immigrants for asia came in he heard stories of Cletus turning
Cows are naturally very gentle and calm creatures. These smart and sweet natured animals have been known to go to great lengths to escape slaughterhouses. More than forty-one million of these sensitive animals suffer and die a painful death each year in the United States. When cows are still very young they are burned with hot irons, there testicles are torn or cut off, all without painkillers. Most beef cattle are born in one state, live in another, and are slaughtered in another. The cows who survive the gruesome transportation process are shot in the head with a bolt gun, hung upside down by there legs, and taken onto the killing floor where there throats
The piercing shrieks of these chickens begging for mercy still rings through my ears to this day. I went home with a lot on my mind that night. I asked my parents what they thought about me be going vegetarian.
Animals wanted to die and by me eating them I gave them a way out of their pain and suffering. I thought that maybe they went in their sleep and the deaths were peaceful and silent. I whole heartily believed in this illusion until one day when I had turned on the television I see a completely new whole at hand. Pure white feathers as white as a fresh blanket of snow covered in bright red almost electric blood smearing the floor below it. This was my lunch, and dinner was in the slaughter house waiting for her turn not even knowing where she is going or how this will end. Turkeys with broken necks, still breathing, watching, waiting for hope of their savior, a rotating saw that would finish the job. This was my Thanksgiving, my Christmas, my Saturday, my week, my life. My life I was living, I was nothing but an accomplice to murder. In ninety minutes my world had changed from a crystal chandelier to a foggy windshield on a rainy day. I can never un-see what I had witnessed that day in fact I still experience nightmares and visions of what I saw.
Hi there. My name is Albert and this is my adventurous story of my journey through a human. I was a delicious gourmet hamburger with fresh ingredients like salad, mustard and an angus beef pattie. I was dumped into a family feed box labelled with a massive golden arched ‘M’. Now, I’m quite an intelligent burger, unlike my other food companions and I love studying about the fascinating human digestive system when I went to Burgerton College. I’m here to tell you first-hand about my digestive journey into the human body! Here is a map of the human digestive system for your convenience to pinpoint where I am in my journey as I am recounting my story.