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digestive system ch.
MA
Question | Answer |
---|---|
the alimentary canal is also known as | digestive tract |
the alimentary canal consists of what four layers | mucosa, submucosa, and the muscular layer |
what layer is the innermost layer of the wall and is mostly made of epithelial tissue that secretes enzymes and mucus into the lumen | mucosa |
what layer is the layer just inferior to the mucosa that contains loose connective tissue, blood vessels, glands and nerves | submucosa |
what layer is just outside the submucosa and is made of layers of smooth muscle tissue | muscular layer |
smooth muscle produces what two types of movements | churning and peristalsis |
the mouth is also known as | the buccal cavity |
the mouth takes in food and reduces its size through chewing, what is this process known as | mechanical digestion |
what secretes saliva, which contains enzymes that initiates breakdown of carbohydrates | salivary glands |
what part of the digestion system connects the mouth with the esophagus | pharynx |
what pushes food to the stomach | peristalsis |
what produces bile, which emulsifies fat | liver |
what stores bile and introduces it into small intestine | gallbladder |
what produces and secrets pancreatic juice, conaining digestive enzymes and bicarbonate ions, into small intestine | pancreas |
what secretes acid and enzymes, mixes food with secretions to begin enzymatic digestion of proteins | stomach |
what absobs water and electrolytes | large intestine |
the mass created by food mixed with the saliva and mucus mixture is called | bolus |
more commonly called the throat | pharynx |
covers the opening of the larynx so that food does not enter it | epiglottis |
what can the stomach absorb | alcohol, water and some fat soluble drugs |
carries out most of the digestion in the body, and is responsible for absorbing most of the nutrients into the bloodstream | small intestine |
eventually the sigmoid colon straightens out to become the | rectum |
as chyme leaves the small intestine it enters what | large intestine |
the salts in bile break large fat globules into smaller ones so that they can be more quickly digeted tby the | digestive enzymes |
what would you do for treatment of constipation | dietary fiber, softeners, laxatives and enemas |
what disorder can you acquire if you do not wash your hands while cooking food | diarrhea |
occurs when stomach acids are pushed into the esophagus | heartburn |
what are all the sections of the large intestine | ascending colon, transverse colon, descending colon, and sigmoid colon |
what do nutrients include | carbohydrates, proteins, lipids, vitamins, minerals, and water |
what is inflammation of the stomach | gastritis |