Portage Learning A&P 1 Module 3 Questions and Answers 100% Pass

Portage Learning A&P 1 Module 3 Questions and Answers 100% Pass What are the two main groups of digestive system? - Correct Answer ️️ -1. alimentary canal 2. accessory digestive organs What is the alimentary canal? - Correct Answer ️️ -Continuous muscular digestive tube that runs from the mouth to the anus What are parts of the alimentary canal? - Correct Answer ️️ -mouth, pharynx, esophagus, stomach, small intestine, large intestine, and anus What are the accessory organs of the digestive system? - Correct Answer ️️ -teeth, tongue, gall bladder, salivary glands, liver, pancreas The mouth is made of what structures? - Correct Answer ️️ -Lips (opening) tongue (floor) cheeks (walls) hard and soft palate (roof) Uvula (posterior border) What is the lingual frenulum? - Correct Answer ️️ -Fold of mucous membrane that secures the tongue to the floor of the mouth What are the tongues attachment points? - Correct Answer ️️ -hyoid bone mandible lingual frenulum What is mastication? - Correct Answer ️️ -mechanical process of breaking down food with teeth what is amalyse? - Correct Answer ️️ -Enzyme secreted by salivary glands that breaks down starches How many teeth are in the human mouth? - Correct Answer ️️ -32 What is the purpose of each tooth? - Correct Answer ️️ -incisor = biting canine = tearing premolar = grinding flat molar = crushing Three main parts of the teeth - Correct Answer ️️ -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? - Correct Answer ️️ -bone like substance of the tooth What is Enamel? - Correct Answer ️️ -hard connective tissue which protects rest of the tooth What is the purpose of the tongue? - Correct Answer ️️ -grips food and constantly repositions between teeth as well as pushes bolus to pharynx What types of papillae contain taste buds? - Correct Answer ️️ -circumvallate, fungiform Where are taste buds found? - Correct Answer ️️ -tongue, surface of mouth, wall of pharynx What is purpose of pharynx - Correct Answer ️️ -throat connects the mouth to the esophagus purpose of two skeletal muscles in pharynx? - Correct Answer ️️ -circumferential (outer layer) longitudinal (inner layer) contract alternatively causing peristalsis, squeezing food to esophagus What is the purpose of esophagus? - Correct Answer ️️ -transports food from the mouth to the stomach What is name of sphincter that separates esophagus and stomach? - Correct Answer ️️ -cardiac Four layers of the alimentary canal - Correct Answer ️️ -mucosa- secretes mucus to move bolus submucosa- contains blood, lymph nodes, and nerve endings muscularus externa- muscles that contract and move bolus through GI tract serosa- makes serous fluid to keep GI tract lubricated Layers of muscularus externa - Correct Answer ️️ -Inner- circumf