The food then travels into the oesophagus. Your oesophagus is located near your trachea (windpipe). The epiglottis separates the nasal cavity and the lower airway from the passage of food whilst swallowing. The contractions of the muscles in your oesophagus push the food down your oesophagus and into your stomach. Your stomach is a hollow organ that holds food whilst it is being broken down by the enzymes.
3- Pharynx (throat): Pharynx is a muscular tube which function is to connect posterior end of the nasal cavity and to the superior end of the esophagus and larynx. Anatomically pharynx is divided into: Nasopharynx: posterior of the nasal cavity, and it receives air that is inhaled by the nasal cavity. Oropharynx: posterior of the oral cavity, and it receives air that is inhaled by oral cavity. Laryngopharynx: the end of pharynx, when the air reaches laryngopharynx the air will be diverted to the larynx. Epiglottis: it is an elastic cartilage covered with a mucus membrane located at the entrance of larynx.
Also, the saliva contains enzymes,such as amylase, that start the digestion process. The chicken uses its tongue to push the feed to the back of the mouth to be swallowed. Esophagus: The esophagus is a flexible tube that connects the mouth with the rest of the digestive tract. It carries food from the mouth to the crop and from the crop to the proventriculus. Crop ( Ingluvius ): The crop is an out-growth of the esophagus and is located just outside the body cavity in the neck region.
A flap of cartilage at the back of the tongue, called the epiglottis, prevents ingested materials from entering the trachea. Muscles in the wall of the pharynx push ingested materials into the oesophagus. The oesophagus is a narrow muscular tube that uses peristalsis (contraction of the muscles in waves) to transport the bolus and any liquids from the pharynx to the stomach. No digestive processes take place in the
In this case, one sphincter opens and makes the oesophagus able to propel food to the stomach by coordinated contractions and relaxations of its muscular lining (peristalsis). After swallowing, the sphincters relax involuntarily to allow drink or food to through from the oral cavity into the stomach. When there is no swallowing action, the muscles would close rapidly to prevent the swallowed food or liquid from leaking out of the stomach back into the oesophagus or into the mouth.
It is an alkaline, a base and neutralizes the acid secreted by the parietal cells. The base and acid reacts with each other producing water in the process. This the main way the stomach can be protected from being auto-digesting or digesting itself. ("How does your stomach keep from digesting itself? | HowStuffWorks," n.d.) The mucous doesn’t get digested as it secrets the hydrochloric acid because the pH within the parietal cells remain neutral.
Introduction: Physiology is that branch of biology which deals with the functions of living systems. It also seeks to understand the individual development of functions and their alternation and adaptation with the continuously changing environments. The microscopic organisms often rely on molecular diffusion to provide them with nutrients and to remove waste products from them, whereas large organisms require more efficient means of transporting materials within their bodies. This transportation is accomplished using flowing liquids and gases. For example, Oxygen is swept into the lungs through a network of airways wherein the Oxygen diffuses into blood across the walls of alveoli and is then pumped by the heart through an extensive network
Similarly, the liver and the pancreas assist in the process of excretion. Additionally, urinary and fecal waste travel through urinary passages and generative canals that connect to the cloaca and are emitted from the cloaca as jelly like, brown droppings. The excretion of feces is usually followed by the emission of urate solids or uric acid crystals that are yellowish in color and appear paste
A human’s body may appear to be a simple form, but nonetheless it is complex with trillions of living organisms working together to keep the individual alive and moving. Many of the composites that keep the individual movements are the cartilages, bones, and joints. Cartilage is divided into three classifications with the same function, but with their own specific functions as well. Bones, which protect the internal organs, are in many different categories based on the appearance of the bones. Joints are divided into different categories depending on the motion it allows the group of bones to do.