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A collection of Tyler and Elisha's best and most exciting adventures from Season 2 of Popular Mechanics for Kids. January 10, 1999 42 "Creepy Crawlers" Insects; leech farm; honeybees; exterminator. January 17, 1999 43 "Monster Trucks" Megasaurus eats cars for lunch. January 24, 1999 44 "How Do They Do That?"
The human digestive system consists of the gastrointestinal tract plus the accessory organs of digestion (the tongue, salivary glands, pancreas, liver, and gallbladder). Digestion involves the breakdown of food into smaller and smaller components, until they can be absorbed and assimilated into the body.
The gastrointestinal tract (GI tract, digestive tract, alimentary canal) is the tract or passageway of the digestive system that leads from the mouth to the anus. The GI tract contains all the major organs of the digestive system, in humans and other animals, including the esophagus , stomach , and intestines .
Download as PDF; Printable version; In other projects Wikimedia Commons; Wikiversity; Wikidata item; ... Hormones of the digestive system (4 C, 3 P) Human throat (3 C ...
Control of the digestive system is also maintained by ENS, which can be thought of as a digestive brain that can help to regulate motility, secretion and growth. Sensory information from the digestive system can be received, integrated and acted upon by the enteric system alone. When this occurs, the reflex is called a short reflex. [4]
In the human digestive system, a bolus (a small rounded mass of chewed up food) enters the stomach through the esophagus via the lower esophageal sphincter. The stomach releases proteases (protein-digesting enzymes such as pepsin ), and hydrochloric acid , which kills or inhibits bacteria and provides the acidic pH of 2 for the proteases to work.
Abdominal part of digestive tube and its attachment to the primitive or common mesentery. Human embryo of six weeks. Schematic figure of the bursa omentalis, etc. Human embryo of eight weeks. The primitive gut is suspended from the posterior abdominal wall by the dorsal mesentery.
YouTube has also presented advocacy campaigns through special playlists featured on YouTube Kids, including "#ReadAlong" (a series of videos, primarily featuring kinetic typography) to promote literacy, [12] "#TodayILearned" (which featured a playlist of STEM-oriented programs and videos), [13] and "Make it Healthy, Make it Fun" (a ...