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Anatomy
Weeks 7 -13
| Question | Answer |
|---|---|
| Upper Respiratory Tract | Portion of the respiratory tract outside the thoracic cavity |
| Nasal Cavity | Lumen of nose, separated into left and right portions by nasal septum |
| Lower Respiratory Tract | Portion of the respiratory tract within the thoracic cavity |
| Trachea | Windpipe, extends from larynx to primary bronchi |
| Bronchi | Treelike branching of airways 23 levels of branching, producing a huge number of individual airways |
| What is digestion | The process of breaking food down into smaller molecules the body can use |
| What is absorption | The movement of digested nutrients from the GI tract into the blood or lymph |
| Where does mechanical digestion begin | In the mouth through chewing |
| What enzyme in saliva begins carbohydrate digestion | Salivary amylase |
| What is peristalsis | Wave-like muscle contractions that move food down the digestive tract |
| What is the function of the stomach | To mix food with acid and enzymes to form chyme |
| Which organ produces bile | The liver |