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The Digestion System - Mouth

Across
Highly acidic
Once food is in liquid form, the pyloric sphincter relaxes, allows chime to enter the small intestines
Swallowing
Saliva is produced
Secretes pepsinogen and gastric lipase
Pons & medulla oblongata
Involuntary once food reaches oropharynx
Necessary for the absorption of vitamin B12
Bolus of food is manoeuvred into oropharynx
Hydrochloric acid
35 million tiny exocrine glands
Inactive molecule that is converted to pepsin by hydrochloric acid in the stomach
Mashing and blending the bolus w digestive juices
Down
Controlled by swallowing centers in pons & medulla oblongata
Relaxes as the bolus approaches, allows the bolus to enter stomach
Mouth, food is masticated by teeth and moistened by saliva
Muscular waves of contractions in about 5 - 8 secs
Series of ridges allows expansion after ingestion of food
Once food has been chewed and moistened, tongue rolls into a ball of chewed food
HCL