1 00:00:14,960 --> 00:00:20,960 Our digestive system breaks food down into small particles called nutrients. 2 00:00:20,960 --> 00:00:26,960 Our muscles and organs need these nutrients to give us energy and help us grow. 3 00:00:26,960 --> 00:00:32,960 Once the digestive system has extracted the nutrients, it gets rid of the waste. 4 00:00:32,960 --> 00:00:37,960 Let's take a look at some of the individual parts of the digestive system. 5 00:00:37,960 --> 00:00:41,960 The first part of the digestive system is the mouth. 6 00:00:41,960 --> 00:00:46,479 Here, food is broken up by the teeth and mixed with saliva by the tongue. 7 00:00:48,359 --> 00:00:53,960 Once food is processed by the mouth, it goes down the esophagus into the stomach. 8 00:00:55,020 --> 00:01:00,700 The esophagus is the tube that leads from the mouth to the stomach that food travels down. 9 00:01:02,420 --> 00:01:05,719 Food travels from the esophagus into the stomach. 10 00:01:06,599 --> 00:01:12,359 Here the food is processed by gastric juices that make the food easier to digest. 11 00:01:14,040 --> 00:01:19,400 This is the small intestine. The small intestine has lots of blood vessels. 12 00:01:20,040 --> 00:01:25,159 Nutrients pass into the blood here and are distributed throughout the rest of the body. 13 00:01:27,000 --> 00:01:34,599 This is the large intestine. Waste passes through here. Water goes out into the body and the waste 14 00:01:34,599 --> 00:01:43,659 becomes harder. Food waste, after passing through the large intestine, goes to the anus, where it 15 00:01:43,659 --> 00:01:52,030 leaves the body. Digestion takes place mainly in the small intestine, but some nutrients are 16 00:01:52,030 --> 00:01:59,629 digested in the mouth and stomach. Some things are not digested. Water, minerals, and vitamins 17 00:01:59,629 --> 00:02:03,870 are small enough to pass into the blood without being digested. 18 00:02:03,870 --> 00:02:15,280 excretory system let's talk about what happens to the waste the body produces when the blood 19 00:02:15,280 --> 00:02:20,979 goes through the kidneys excess water and waste products are dropped off and made into urine 20 00:02:20,979 --> 00:02:29,840 jurors are the tubes that connect the kidneys to the bladder urine that is made by the kidneys 21 00:02:29,840 --> 00:02:38,740 goes down the ureters into the bladder the bladder is where urine is stored when the 22 00:02:38,740 --> 00:02:47,949 bladder is full, it sends messages to our brain. When the bladder is full, it sends the urine to 23 00:02:47,949 --> 00:02:53,909 the urethra. The urethra is the tube that all of the urine exits the body out of.