The fantastic voyage of the digestive system Essay

Once again we have been miniaturized in the submarine to continue the fantastic voyage of the digestive system. We will be touring a 55-year-old male. The host will be having a hamburger, French fries, and a root beer. We will be tracing lunch through the digestion process. Digestion is the process of turning the food that is ate into energy needed to survive and involves creating waste to be eliminated. (Mohan, 2010). The digestive tract is a long twisting tube that starts at the mouth and ends at the anus, called the alimentary canal. The wall of this tube is fashioned of four layers of tissue. The layers are listed from the inside coat to the outside coat: mucosa or mucus membrane, submucosa, muscularis, and serosa. The hollow space†¦show more content†¦As you can see, it is a tubelike structure made of muscle and lined with mucous membrane. The pharynx functions as part of the respiratory and digestive system because it is located behind the nasal cavities and the mouth . It is the structure that we refer to as the throat. It is about twelve and a half centimeters long and consists of three parts; the nasopharynx, oropharynx and the laryngopharynx. (Anatomy.tv, n.d.) The esophagus branches off of the pharynx which carries food to the stomach. Swallowing takes place in the pharynx partly as a reflex and partly under voluntary control. The tongue and soft palate pushes food into the pharynx, which closes off the trachea. The food then enters the esophagus. The esophagus is a muscular tube extending from the pharynx to the stomach. . (Mohan, 2010). It is about 25 centimeters long. The production of mucus by glands in the mucosal lining as you can see lubricates the tube to permit easier passage of food moving toward the stomach. (Thibodeau Patton, 2008). Food is pushed through the esophagus and into the stomach by a series of contractions called peristalsis. The lower esophageal sphincter is just before the opening to the stomach. It opens to let f ood pass into the stomach and closes to keep it there. (Mohan, 2010). The stomach is a sac-like organ with strong muscular walls that lies in the upper abdominal cavity just under the diaphragm. The stomach looks small after it is emptied, but it expandsShow MoreRelatedFantastic Voyage aP Ii Essay1739 Words   |  7 PagesFantastic Voyage Unit 9 Project Anatomy and Physiology II Fantastic Voyage. Once again my mini-sub and I will be miniaturized (8 microns long) and witnessing another ‘Fantastic Voyage’ in a human body. This time I will be swallowed by George, a 55 years old man, while he is eating his meal consisting of a hamburger, French fries and a soda. I will pilot my mini-sub through George’s GI (gastrointestinal tract), which is the tube that starts with the mouth and proceeds to the esophagus, stomachRead MoreA Tour of the Human Body1846 Words   |  7 Pagesï » ¿Welcome to our Fantastic Voyage! On this journey, we will explore how nutrients are consumed and passed through the human body before they are finally expelled. This journey will take us through the digestive, circulatory, and digestive systems. Our journey will begin after we enter our male test subjects system by inconspicuously entering the digestive system as part of his delicious, all-American meal consisting of a juicy hamburger, crispy french fries, and an ice-cold root beer. Our tourRead MoreFantastic Voyage Into the Human Body1547 Words   |  6 Pagesï » ¿The human body is a fascinating organism with a multiplicity of complex systems working together to ensure the health of the individual. Join us as we take a Fantastic Voyage through our healthy, 55-year old male subject to witness how nutrients are ingested and passed through the body. During this journey, we will pass through the digestive, circulatory, and digestive systems to better understand how the body receives nutrients, how they are broken down, and finally, how they are expelled fromRead MoreAnatomy of Digestive, Circulatory, and Urinary Systems1398 Words   |  6 PagesA Fantastic Voyage Anatomy of Digestive, Circulatory Urinary Systems This is me, Beth Cooper. I have been shrunk again to the size of 8 microns only. In my mini-sub, I am now entering into the mouth of a 55 years old man. He just had a lot of junk food including Hamburger, French Fries and Root beer (which is my carrier as well). It is amazing to see that the digestion process has already started in the mouth of this man. The food has been broken down in to swallow able portions during chewing