Bio Quiz 2 Flashcards
Ingestion
The taking in of food into the digestive tract by way of mouth
Mastication
The chewing movements that pulverize food and mix it with saliva
Deglutition
The swallowing of “food” to move it from the mouth, past the pharynx, into the esophagus.
Peristalsis
The rhythmic, wave-like muscular contractions / relaxations of the tract that propels material along.
Churning
The agitation and mixing of the stomach contents
Egestion
The elimination of solid waste (feces), from the digestive tract
Excretion
The elimination of liquid waste (urine) from the body.
Mouth
Location: Head
MD- Mastication
CD- starches are broken down by salivary amylase to make maltose (2 Glucose Units)
Teeth
Location:Mouth
Incisors, Canines, Premolars, and Molars.
Tongue
Location:Floor of mouth
1. Taste
2. Mixes food, helps form bolus, through mastication.
3. Aids in swallowing
4. Linguistics
5. Cleans teeth
6. Pleasure (texture of food)
Salivary Glands
Location: Varies
Produces and secrets saliva
Hard Palate
Location: Front of roof of mouth
Mastication and to help form bolus
Soft Palate
Location: Back of roof of mouth
It separates the oral cavity from the nasal cavity and helps form bolus
Uvula
Location: end of soft palate
Prevents bolus from entering into the nasal cavity.
Stimulates the gag reflex
Bolus
A soft, round mass of masticated food mixed with saliva