in that it is elongate and nearly cylindrical in cross section. The abdomen is well developed and its segmentation is easily noted. The crayfish has bilateral symmetry‚ anterior‚ posterior‚ dorsal‚ ventral‚ right‚ and left. Nervous System The crayfish nervous system
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Respiratory System A frog’s respiratory system is much different than humans. First‚ the lungs in a frog have thin walls and are shaped like balloons. When frogs swim‚ they fill their lungs with air‚ which helps them stay buoyant while swimming. Frogs also do not have diaphragms compared to humans. They only breathe through their nose. They use muscles in their throat sacs to help move the air in‚ and then is pushed to the lungs. During this time‚ their mouth is closed. Body contractions allow
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Respiratory System Webquest Name__________________ Use the website below to access the answer for the following questions. http://teachhealthk-12.uthscsa.edu/studentresources/AnatomyofBreathing3.swf 1. After watching the intro (replay if needed) select continuous breathing. a. What happens to the rib cage during inhalation? b. What happens to the diaphragm during inhalation? c. What happens to the rib cage during exhalation? d. What happens to the diaphragm during exhalation? 2
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The Digestive System The digestive system is made up of the digestive tract—a series of hollow organs joined in a long‚ twisting tube from the mouth to the anus—and other organs that help the body break down and absorb food. Organs that make up the digestive tract are the mouth‚ esophagus‚ stomach‚ small intestine‚ large intestine—also called the colon—rectum‚ and anus. Inside these hollow organs is a lining called the mucosa. In the mouth‚ stomach‚ and small intestine‚ the mucosa contains tiny
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of Group Members: Date: Introduction: In this lab‚ you will be examining many characteristics of a rat’s anatomy. Dissections help researchers get a 3-dimensional picture of how the systems of a body work together. Now you’ll have the opportunity to see how the respiratory‚ digestive and circulatory system are arranged spatially. The Classification of the Rat (Rattus norvegicus): Kingdom: Animalia Phylum: Chordata Subphylum: Vertebrata Class: Mammalia Order: Rodentia
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DIGESTION Cooking vs. Digestive Processes Cooking Processes: Grilling Microwaving Frying Roasting Barbeque Boiling Steaming Poaching Digestive Processes: Ingestion Propulsion Mechanical digestion Chemical digestion Absorption Defecation Salivary Digestion SALIVARY DIGESTION Salivary Glands the salivary glands are a collection of accessory organs surrounding the mouth that secrete a fluid called saliva. Saliva consists of 99.5 % water and 0.5 % solutes. medium for dissolving
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The Function and Mechanics of the Digestive System SCI/241 The Function and Mechanics of the Digestive System My 4 year old daughter asked me‚ “Mommy‚ how does food go to my stomach?” It is really weird the questions children ask but I had to explain. In this paper I will explain the function and mechanics of the digestive system. The body ’s method of taking the food we eat and breaking it down to obtain vital nutrients that will allow us to live and be healthy is digestion. According
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THE CARDIOVASCULAR SYSTEM [1] On a front direct projection of the thorax X-ray the expansion of the left contour of the middle shadow in its lower department is present. What department of the heart is enlarged? A. Auricle of the left atrium B. Right ventricle C. Left atrium D. Right atrium E. Left ventricle The middle shadow on a front direct projection of the thorax X-ray is formed by the heart and vessels diverging from it. The middle shadow of left contour is formed by four arches.
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The Digestive System: Anatomy Review 1. List two main divisions of the digestive system. a. Gastrointestinal tract b. Accessory digestive 2. The four main layers of the digestive tract wall are a. Mucosa b. Submucosa c. Muscularis Externa d. Serosa 3. Label the diagram below with the four main layers you listed in question 6. 4. The mucosa includes a type of columnar __cell______that forms the inner lining of the lumen 5. Blood and lymph vessels of the mucosa are found in its _epithelial
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Science Body System Investigation My Question: Do plants have or need a digestive system? Some plants have digestive systems‚ but those plants live in marsh areas because they can’t get adequate nitrogen. But most plants don’t have digestive systems. Plants that don’t have digestive live in soils and environments that contain all the nutrients and other things they need. Plants that have a special type of digestive system that is much different to humans live in areas with not enough nutrients they need
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