Portage Learning A&P 1 Module 3. Q&A.
100% Approved pass rate.
What are the two main groups of digestive system? - Ans-1. alimentary canal
2. accessory digestive organs
What is the alimentary canal? - Ans-Continuous
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Portage Learning A&P 1 Module 3. Q&A.
100% Approved pass rate.
What are the two main groups of digestive system? - Ans-1. alimentary canal
2. accessory digestive organs
What is the alimentary canal? - Ans-Continuous muscular digestive tube that runs from the mouth to the
anus
What are parts of the alimentary canal? - Ans-mouth, pharynx, esophagus, stomach, small intestine,
large intestine, and anus
What are the accessory organs of the digestive system? - Ans-teeth, tongue, gall bladder, salivary glands,
liver, pancreas
The mouth is made of what structures? - Ans-Lips (opening)
tongue (floor)
cheeks (walls)
hard and soft palate (roof)
Uvula (posterior border)
What is the lingual frenulum? - Ans-Fold of mucous membrane that secures the tongue to the floor of
the mouth
What are the tongues attachment points? - Ans-hyoid bone
mandible
lingual frenulum
What is mastication? - Ans-mechanical process of breaking down food with teethwhat is amalyse? - Ans-Enzyme secreted by salivary glands that breaks down starches
How many teeth are in the human mouth? - Ans-32
What is the purpose of each tooth? - Ans-incisor = biting
canine = tearing
premolar = grinding
flat molar = crushing
Three main parts of the teeth - Ans-Root - the largest portion of the teeth
Neck- portion contained in upper portion of gingiva
Crown- visible portion of tooth above gum line
What is Dentin? - Ans-bone like substance of the tooth
What is Enamel? - Ans-hard connective tissue which protects rest of the tooth
What is the purpose of the tongue? - Ans-grips food and constantly repositions between teeth as well as
pushes bolus to pharynx
What types of papillae contain taste buds? - Ans-circumvallate, fungiform
Where are taste buds found? - Ans-tongue, surface of mouth, wall of pharynx
What is purpose of pharynx - Ans-throat connects the mouth to the esophagus
purpose of two skeletal muscles in pharynx? - Ans-circumferential (outer layer) longitudinal (inner layer)
contract alternatively causing peristalsis, squeezing food to esophagus
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