Digestive system Flashcards
Two names for the irregular hollow tube of the digestive system that is approximately 29 feet long
G.I. tract
Alimentary canal
The breakdown or digestion of food material can be described as mechanical, muscular, hydrating, radiation, chemical, or biological
Chemical
Mechanical
The three kinds of processing that food undergoes in the body
Digestion
Absorption
Metabolism
List the seven accessory organs of the digestive system
Teeth tongue salivary glands, pancreas, gallbladder, appendix and liver
The hollow space within the G.I. tract
Lumen
The four layers of the G.I. tract from inside out
Mucosa
Submucosa
Muscle layers
Serosa
The wavelike rhythmic contraction of the muscular coat that moves food material
Peristalsis
The process of digestion begins immediately upon food entering the mouth through which substance
Salvia
This bony structure of the mouth is formed by parts of the Palatine and maxillary bones
Hard palette
This muscular structure located in the rear of the mouth assists in preventing food and liquid from entering the nasal cavity
Soft palette
Part of the soft palate this structure hangs down in the back of the mouth to assist in preventing food and liquid from entering the nasal cavity
Uvula
The tastebuds are located on these structures of the tongue
Papillae
List the tastes the sensory receptors of the tastebuds can detect
Sour, sweet, bitter and salty
List the four major types of teeth
incisors
Molar
Premolar
Canine
Medical term for chewing
Mastication
The name sometimes used for canine teeth
Cuspid
The name sometimes used for premolars
Bicuspids
The name sometimes used for molars
Tricuspids
These teeth are used for tearing
Canine teeth
These teeth are used for grinding and crushing
Molars and premolars
This is the small rounded mass of food once chewed
Bolis
The number of teeth most two year olds have
20
The number of teeth most adults have
32
List the parts of the tooth
Crown root neck
The hardest tissue in the body
Enamel
The three hard tissues of teeth
Enamel Dentin and cementum
The two substances of saliva
Mucus and savilary amylase
The digestive enzyme of saliva
Savilary amylase
The digestive enzyme that begins the chemical digestion of carbohydrates
Salvilary amylase
This structure is part of the respiratory and digestive system
Pharynx