محمد السيد
عدد المساهمات : 2
تاريخ التسجيل : 09/03/2010
 |  موضوع: مراجعة الجهاز الهضمى للصف الرابع الجمعة مارس 19, 2010 10:38 pm | |
| Revision on the digestive system. Complete:-1-Digestion starts in ………...........… and ends in ………..……..2-liver secretes ……..........…..in ……..........….3- Digested food is absorbed through the …….……….4- salivary glands secretes…….............….. in the ………..5- Duodenum is followed by a part of small intestine known as............…..6 – Saliva convert ……………….into…………..7- digestive canal starts with ………........…….and ends with…..........8- Number of teeth in adults is ……............9- number of teeth in each jaw is …….....…10-number of incisors in each jaw is …….,while the number of molars is …….. 11-Gastric juice digests………………….. substances. 12-Liver secretes………….…….juice .13-A muscular sac works on mixing food up by its digestive juices is called……….14- salivary glands are …………..…pairs.15- Water is absorbed in ……………..from food remains.16- A common cavity leads to the esophagus is called ….………..17- The system which distributes the digested food and oxygen all over the body cells is ....….. system 18-saliva contain digestive substances called……………19-changing complex food into simple food is called………………..20- Bile juice help to digest……………..into fatty emulsion. | |
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