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2nd Year. Preswex.
Digestive system, Circulatory system. Chapter 8.2 8.3
| Term | Definition |
|---|---|
| Ingestion | Taking food into the mouth |
| Digestion | Break down of food into smaller pieces |
| absorbtion | food molecules moving into the blood |
| Assimilation | food used by the body to make new cells |
| egestion | undigested food passed of body as faeces |
| amylase | enzyme that breaks down starch |
| canine | teeth used for ripping and tearing food |
| incisor | teeth used to cut food |
| molar | teeth used to grind food |
| saliva is made here | salivary glands |
| physical digestion | muscles in stomach, the teeth and the tongue breaking food into smaller pieces |
| chemical digedtion | breaking down for food by enzymes and digestive juices. |
| The reason we need food to be digested | make it small enough to be absorbed into the blood. |
| We need food(glucose) and oxygen | for respiration to happen in our cells |
| In the small intestine | food is broken down by enzymes and absorbed into the blood |
| In the stomach | food is broken down churning (physical) and by hydrochloric acid (chemical) |
| the liver | brakes down toxic substances, makes bile, heats the blood to 37 degrees Celsius. |
| pancreas | makes enzymes like amylase and lipase to be used in the small intestine |
| the large intestine | takes water back into the blood |
| Good bacteria in large intestion | improve our immune system and make B and K vitamins for us. |
| Relationship between humans and good bacteria in large intestine is called | A symbiotic relationship |