Flowchart Science: The Human Body: The Digestive System

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The other component is the accessory digestive tract. This group of organs are responsible for the synthesis and secretion enzymes to facilitate chemical digestion. Digestive Tract Fact #3 – Stomach rumbles are produced by peristaltic contractions as they move contents through the intestinal tract. They occur during digestion and can continue two hours after the stomach has emptied. Small Intestine

The colon (large intestine) is a five- to seven -foot -long muscular tube that connects the small intestine to the rectum. It is made up of the cecum, the ascending (right) colon, the transverse (across) colon, the descending (left) colon and the sigmoid colon, which connects to the rectum. The appendix is a small tube attached to the ascending colon. The large intestine is a highly specialized organ that is responsible for processing waste so that defecation (excretion of waste) is easy and convenient.

Another way to improve digestive health is to take care of the bacteria living in your gut. These microbes do a lot to facilitate healthy digestion. By utilizing probiotics, you can help maintain a healthy balance of intestinal bacteria. I nferior mesenteric artery - supplies distal 1/2 of transverse colon, descending colon, sigmoid colon, rectum, anus There is relaxation of the cricopharyngeal sphincter and the bolus enters the proximal esophagus. The presence of the bolus causes distention of the myenteric plexus within the walls of the esophagus, initiating the primary esophageal peristaltic wave. Central to the pharynx’s floor is a prominent median elevation, which houses the glottis. The glottis is a longitudinal, slit-like aperture that plays a pivotal role in respiration. It provides a passage to the laryngo-tracheal chamber, ensuring the efficient exchange of gases. Besides the glottis, the roof of the pharynx features a broad eustachian aperture on each lateral side. These apertures connect to the middle ear, playing a role in auditory functions.

Furthermore, in male frogs, the pharynx’s floor exhibits additional features. Specifically, there are small openings of vocal sacs located on either side, near the junction of the two jaws. These vocal sacs are instrumental in producing mating calls and other vocalizations. Duodenum: This is the anterior section of the small intestine. It is characterized by its U-shaped structure, running parallel to the stomach. The duodenum receives digestive juices from both the liver and the pancreas via a common hepatopancreatic duct. These juices, namely bile and pancreatic juice, play a crucial role in the breakdown of food. The internal mucous lining of the duodenum forms low transverse folds, enhancing its surface area for efficient digestion. Gallbladder: Frogs have a gallbladder that stores bile produced by the liver until it is needed in the small intestine.The pancreas, a vital gland in the vertebrate body, plays a dual role in endocrine and exocrine functions. This article delves into the structure, histology, and functions of the pancreas, providing a comprehensive understanding of its significance in the body. Mastication is actually a reflex action that is stimulated once food is present in the mouth. At that point, there is inhibition of the muscles of mastication which results in a fall of the mandible. This causes distention of the muscles of mastication, resulting in reflex contraction of the muscle fibres; thus raising the mandible. That action causes apposition of the upper and lower rows of teeth, crushing the food that is between them. The cycle is repeated until the food particles can be rolled into a bolus. Once chyme has entered the first part of the duodenum, it activates the neurohormonal axis which promotes the release of bile (from the liver and gallbladder) and other enzymes from the pancreas. The peristaltic waves continue to move the chyme along the intestinal tract. The intricate folding of the intestines facilitates absorption of nutrients from the chyme. Majority of the nutrients are absorbed within the small intestines. The remnants are passed through the unidirectional ileocecal valve into the cecum. Remember, sharing your thoughts not only helps you gain a deeper understanding but also contributes to the We hope you've enjoyed reading our latest blog article! We're thrilled to see the positive response it's been

The stomach is a dynamic organ, too. It churns, squeezes, and grinds boluses of food and mixes them with gastric secretions. Peristalsis continues in the stomach and is the driving force for blending food with stomach acid. Stomach secretions help make nutrients available for absorption later in the small intestine. Blood Functions: In embryonic stages, the liver is responsible for red blood cell production. In adults, it aids in the destruction of old erythrocytes. Furthermore, it produces vital blood-clotting agents like prothrombin and fibrinogen and secretes heparin, an anticoagulant. The anus is the hole and end point of the alimentary canal. The external aperture is known as the anus. Defecation is controlled by layers of the muscle. It has sphincters that help in the excretion of the waste outside the body. Therefore, the pharynx, with its intricate structure and multiple apertures, plays a multifaceted role in the frog’s physiology. From facilitating respiration to aiding in digestion and vocalization, its functions are diverse and essential for the frog’s survival.The digestive system of the frog is equipped with specialized glands that play a pivotal role in the digestion and metabolism of food. Two primary glands associated with the alimentary canal of the frog are the liver and the pancreas. This article provides a detailed and sequential explanation of these glands, emphasizing their structure, histology, and functions. 1. Liver:

Pharynx: The pharynx is a muscular part of the throat that aids in swallowing. Frogs can depress their eyeballs into the roof of their buccal cavity to help push food down into the pharynx. The liver has multiple functions, but two of its main functions within the digestive system are to make and secrete an important substance called bile and to process the blood coming from the small intestine containing the nutrients just absorbed. The liver purifies this blood of many impurities before traveling to the rest of the body. Esophagus: This is a short tube that transports food from the mouth to the stomach. It is relatively narrow and serves mainly as a conduit. Gravity can also aid in moving a meal through your esophagus. By sitting upright, the food you eat can travel swiftly and comfortably down the esophagus and into your stomach.

Absorption – uptake of the soluble products of digestion

Human Digestive System and Nutrition involve the intake of food by an organism and its utilization for energy. This is a vital process which helps living beings to obtain their energy from various sources. The food which we eat undergoes much processing before the nutrients present in them are utilized to generate energy. This processing is known as digestion. Humans and other animals have specialized organs and systems for this process. Diving deeper into its anatomy, the stomach is bifurcated into two distinct sections. The anterior segment, expansive and broad, is termed the cardiac stomach. Conversely, the posterior segment, which is shorter and narrower, is referred to as the pyloric stomach. A noteworthy feature of the stomach’s inner surface is the presence of several prominent longitudinal folds. These folds are not mere anatomical embellishments; they play a crucial role in allowing the stomach to distend when it receives food, ensuring optimal storage and processing.