Digestive System
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secretion of the liver that is temporarily stored and concentrated in the gallbladder
Bile
thick, semi-liquid food material that passes from the stomach to the small intestine
Chyme
one of the five tastes, comes from savoriness or eating brothy or cooked meats
Umami
serves as the beginning of the digestive tract
Mouth (oral cavity)
wavelike contractions that propel substances along a tubular structure such as the esophagus
Peristalsis
______ begins the process of starch digestion
Salivary Amylase
What is Mechanical Digestion?
involves physically breaking down food into smaller particles for chemical digestion
What is Chemical Digestion?
using enzymes to break down food particles, nutrients, into smaller molecules
4 kinds of teeth
Incisors, Canines, Premolars, Molars
used for cutting up food
Incisors
used for cutting through meat
Canines
used for crushing food
Premolars, Molars
The tongue mixes the food with saliva, this creates a so called ____ in order to prepare for swallowing
Bolus
common passage for food and air
Pharynx
tubular structure, around 25 cm, that takes food to the stomach
Esophagus
thick wall, J-shaped organ
Stomach
what are the walls of the stomach called?
Rugae
4 subdivisions of the Colon
Ascending, Transverse, Descending, Sigmoid
3 subdivisions of the large intestine
Duodenum, Jejenum, Ileum
The body’s major digestive system
Small Intestine
role is to masticate (chew) food
Teeth
Humans have _ sets of teeth.
2
What are our vestigial organs?
Wisdom teeth, appendix
hardest part of the teeth
Dentin