Intestines A long tube snaking through your middle Food moves through this pipe with muscular jerks and spasms j Nutrients from the food pass through the wall into the blood I'm a gutsy performer, the business end of your body's fabulous food-processing facility. Like a squirming serpent I lie coiled in your belly. As churned-up nosh makes its way around my long and winding loops, I use a variety of cunning tricks to suck all the best stuff from it. What's left once I've finished is pongy waste. It's the dirtiest job in the body, but someone's got to do it. Although I'm on the inside, I'm actually an outer layer of the body - like the hole running through a very long doughnut. I'm in two sections. The small intestine is a narrow pipe where food is processed. The waste moves into the large intestine. The water is sucked out, leaving a whiffy mixture of solid and gas, which leaves the body through the anus. Length of small intestine: 6 m Length of large intestine: 1.5 m Time food spends in intestines: 12 hours Read the passages above. Answer the following questions some answers are in the – passages some are not! – TOOTH What is the description/word for incisors? Do you think it is a good choice? Explain your answer. What is the name of the toughest layer of a tooth called? What can damage this layer? STOMACH Find a description of physical digestion. For the acid in the stomach find out its scientific name, the pH of the – stomach and the name of the cells that produce it. What is What is the last sentence describing? INTESTINES Pick out the sentence that describes absorption i.e. the movement of digested food out of the intestines into the bloodstream. Write out at least 3 of the tricks” used by the intestines to carry out “cunning absorption efficiently. Find a description of peristalsis. The small intestine is 6m long. Compare this to the width of this classroom :- would it reach from wall to wall? Once? Twice?
Intestines A long tube snaking through your middle Food moves through this pipe with muscular jerks and spasms j Nutrients from the food pass through the wall into the blood I'm a gutsy performer, the business end of your body's fabulous food-processing facility. Like a squirming serpent I lie coiled in your belly. As churned-up nosh makes its way around my long and winding loops, I use a variety of cunning tricks to suck all the best stuff from it. What's left once I've finished is pongy waste. It's the dirtiest job in the body, but someone's got to do it. Although I'm on the inside, I'm actually an outer layer of the body - like the hole running through a very long doughnut. I'm in two sections. The small intestine is a narrow pipe where food is processed. The waste moves into the large intestine. The water is sucked out, leaving a whiffy mixture of solid and gas, which leaves the body through the anus. Length of small intestine: 6 m Length of large intestine: 1.5 m Time food spends in intestines: 12 hours Read the passages above. Answer the following questions – some answers are in the passages – some are not! TOOTH What is the description/word for incisors? Do you think it is a good choice? Explain your answer. What is the name of the toughest layer of a tooth called? What can damage this layer? STOMACH Find a description of physical digestion. For the acid in the stomach find out – its scientific name, the pH of the stomach and the name of the cells that produce it. What is What is the last sentence describing? INTESTINES Pick out the sentence that describes absorption i.e. the movement of digested food out of the intestines into the bloodstream. Write out at least 3 of the “cunning tricks” used by the intestines to carry out absorption efficiently. Find a description of peristalsis. The small intestine is 6m long. Compare this to the width of this classroom :- would it reach from wall to wall? Once? Twice?
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