canal) . Accessory digestive organs 1. Salivary glands 2. Liver and gall bladder 3. Pancreas Layers or Tunics of the Digestive Tract 1. Mucosa • the innermost tunic consists of mucous epithelium‚ a loose connective tissue called the lamina propria‚ and a thin smooth muscle layer‚ the muscularis mucosae. 2. Submucosa • lies outside the mucosa. • It is a thick layer of loose connective tissue containing nerves‚ blood vessels‚ and small glands. An extensive network of nerve cell processes
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Part 1: Part 2: Parotid salivary gland: It is located by the pharynx and on the cheek. I will remember this because the parotid salivary gland has the key word saliva which is in the mouth. Pharynx: Located in the neck; and‚ I will remember where the pharynx is located because it starts with the letter P which is right across from the parotid salivary gland on the picture. Esophagus: Located in the middle of the body and it is a long tube. I will remember where the esophagus is located because
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organ of the alimentary canal The alimentary canal includes the mouth‚ pharynx‚ esophagus‚ stomach‚ small intestine‚ large intestine‚ andanal canal Mouth Food enters the digestive tract through the mouth. The labia (lips) protect its anterior opening‚ the cheeks form its lateral walls‚ the hard palate forms its anterior roof‚ and the soft palate forms its posterior roof. The space between the lips and cheeks externally and the teeth and gums internally is the vestibule. The area contained by
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Pig digestive system Tongue • For taste • Pushing food into the esophagus Papillae • Rough edges of that tongue that contain the taste buds Hard and soft palate • Separate the nasopharynx from the mouth Parotid gland • Secretes saliva (amylase enzyme) which breaks down starches into sugar Stomach • Stores food • Begins digestion of tissues and proteins by secretion of gastric juices. These juices are very acidic (pH 1-2). The semi-digested stomach contents
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Discuss your dissection of the components of the endocrine system of the fetal pig by doing the following: a. Describe the endocrine organs that are located in the throat region (e.g.‚ function and appearance). Thyroid - small dark brown‚ pink gland in the trachea. Its function is to regulate metabolism and secrete hormones.
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The human digestive system consists of the gastrointestinal tract plus the accessory organs of digestion (the tongue‚ salivary glands‚ pancreas‚ liver‚ and gallbladder).[1] In this system‚ the process of digestion has many stages‚ the first of which starts in the mouth. Digestion involves the breakdown of food into smaller and smaller components‚ until they can be absorbed and assimilated into the body. Chewing‚ in which food is mixed with saliva begins the process of digestion. This produces a bolus
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sympathetic nerve systems. The effector organs for the sympathetic system include: the smooth muscle of blood vessels‚ lungs‚ viscera‚ scalp‚ pupils‚ the heart‚ and glands. The effector organs for the parasympathetic system include: lacrimal glands‚ salivary glands‚ neck‚ blood vessels of the head‚ thoracoabdominal viscera‚ smooth muscle of glands and viscera (eg‚ liver‚ spleen‚ colon‚ kidneys‚ bladder‚
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nutrients and absorbs nutrients‚ ions and water from the external environment of the body. It is designed to maximize digestion and absorption. The functional structures of the digestive system are the passage‚ the glands like salivary glands‚ gastric glands‚ pancreatic‚ intestinal glands and liver. Also‚ the four layers of the digestive system are mucosa‚ submucosa‚ muscularis and serosa. The digestive system is regulated both by the Autonomic system and the Enteric nervous system. The major functions
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determine the sex of the offspring‚ and the autosomes consist of all the other chromosomes that determine phenotypic traits. Dominant traits are the genes that are expressed‚ while the recessive traits are masked by the dominant traits. We used Drosophila melanogaster (fruit fly)‚ mutating the female fruit fly with a scalloped gene to change the phenotype of its offspring and using males with genes showing wild-type. Placing WT males and SD females in the same vile‚ we provided the flies an atmosphere to
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Introduction/Background c-Myb has long been known as a factor of many leukemias and lymphomas in mammals and birds. Vertebrates possess 3 forms of the Myb gene‚ A-Myb‚ B-Myb‚ and c-Myb‚ whereas Drosophila melanogaster‚ however‚ only possess one copy of the Myb gene‚ Dm-Myb‚ which results in fatality before reaching adulthood (Manak‚ Mikitu‚ Lipsick‚ 2002). Myb has also been shown to be required for the proper activation of G2/M cell cycle genes (Georlette et al.‚ 2007). The results of several other
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