SCIENCE 8
Subdecks (2)
Cards (46)
- Two forms of digestion:
- Mechanical Digestion
- Chemical Digestion
- alimentary canal
- mouth
- pharynx
- esophagus
- stomach
- small intestines
- large intestines
- rectum
- anus
- accessory glands
- liver
- gallbladder
- pancreas
- pharynx- passageway leading from the mouth to esophagus
- esophagus- 25cm long muscular tube that connects the pharynx to stomach
- peristalsis- series of waves like muscle contractions that move food through the digestive tract
- stomach- it is a j-shape muscular bag, it mixes the food woth gastric juices that contains enzymes t break down the food
- small intestines- 6 meters or 20 feet long
- parts of small intestines
- duodenum
- jejunum
- ileum
- villi small finger-like structure in the small intestines that absorbs nutrients from food
- large intestines- 1.5 meters or 5 feet long absorbs the nutrients left by small intestines
- rectum holds the feces before it is expelled
- anus- it is an opening which solid waste matter leaves the body
- liver- produces bile
- bile aids in digestion of fat
- gallbladder- stores bile from the liver and releases it into small intestines
- pancreas- produces digestive enzymes to digest fat, carbohydrate, and proteins