Digestion

Before food enters the mouth...
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Terms in this set (21)
Before food enters the mouth...
digestion begins with the hypothalamus
Digestion begins with the hypothalamus....
The hypothalamus sits above the pituitary gland. It controls emotions such as hunger, rage, pain, pleasure, and thirst. It secretes hormones such as the antidiuretic hormone which causes your body to retain water.
The hypothalamus sits above the pituitary gland. It controls emotions such as hunger, rage, pain, pleasure, and thirst. It secretes hormones such as the antidiuretic hormone which causes your body to retain water.
Hunger is physiological meaning food is needed. An indicator of hunger in low blood sugar. Appetite is psychological meaning food is wanted. There are 5 sense that trigger hunger and appetite; see, hear, smell, taste, and feel the food
Hunger is physiological meaning food is needed. An indicator of hunger in low blood sugar. Appetite is psychological meaning food is wanted. There are 5 sense that trigger hunger and appetite; see, hear, smell, taste, and feel the food
Pavlov's dog was an experiment done where every day a bell would ring and the dog would receive a treat. One day the bell rang and there was no treat, and the dog was salivated. This is known as classical condition. An example of classical condition for humans is trying to eat at a different time then you do every day.
Pavlov's dog was an experiment done where every day a bell would ring and the dog would receive a treat. One day the bell rang and there was no treat, and the dog was salivated. This is known as classical condition. An example of classical condition for humans is trying to eat at a different time then you do every day.
William Beaumont was the first person to collect gastric juice from a living person
William Beaumont was the first person to collect gastric juice from a living person
Before food enters...
Saliva is secreted by the salivary glands: Parotid gland, located by the ear, sublingual, located under the tongue, and the submandibular, located along the jawline.
Before food enters...
Saliva is secreted by the salivary glands: Parotid gland, located by the ear, sublingual, located under the tongue, and the submandibular, located along the jawline.
The functions of saliva are the salivary amylase that breaks down amylose, lysozyme has antibiotic properties, the lubrication of foods, and offering minimal pH regulation.
The functions of saliva are the salivary amylase that breaks down amylose, lysozyme has antibiotic properties, the lubrication of foods, and offering minimal pH regulation.
Stomach churns and produces HCl because of the hormone Gastria
Stomach churns and produces HCl because of the hormone Gastria
Food enters and mastication, which is the process of chewing, occurs. Surface area is increased, mixes with saliva, and tears and grinds.
Food enters and mastication, which is the process of chewing, occurs. Surface area is increased, mixes with saliva, and tears and grinds.
From the back to the front of the mouth is the molars, premolars, canine, and then incisors. Molars and premolars crush and grind, canine tear, and incisors cut
From the back to the front of the mouth is the molars, premolars, canine, and then incisors. Molars and premolars crush and grind, canine tear, and incisors cutThe Diet of the 1800s was the idea to chew as much as possible which would result in better digestion, burn calories, and eating lessThe Diet of the 1800s was the idea to chew as much as possible which would result in better digestion, burn calories, and eating lessThe liver, gallbladder, and pancreas are accessory organsThe liver, gallbladder, and pancreas are accessory organsThe tongue pushes food to the roof of the mouth called the hard palate and then back to the soft palate. The food is formed into a ball, called a bolus, and is pushed to the back of the throat called the pharynx.The tongue pushes food to the roof of the mouth called the hard palate and then back to the soft palate. The food is formed into a ball, called a bolus, and is pushed to the back of the throat called the pharynx.The epiglottis covers the glottis, the entrance to the trachea. If food goes down the trachea, the heimlich maneuver. The bolus then goes down the esophagusThe epiglottis covers the glottis, the entrance to the trachea. If food goes down the trachea, the heimlich maneuver. The bolus then goes down the esophagusThe esophagus is roughly 1 foot long and 1 inch in diameter. It's lined with mucus for protection and peristalsis begins which is the involuntary movement of food.The esophagus is roughly 1 foot long and 1 inch in diameter. It's lined with mucus for protection and peristalsis begins which is the involuntary movement of food.Then it enters the stomach through esophageal sphincter. Chemical digestion consists of HCl which has a pH of 1 before food enters and pepsin which breaks down proteins and some lipids and carbs.Then it enters the stomach through esophageal sphincter. Chemical digestion has HCl which has a pH of 1 before food enters and pepsin which breaks down proteins and some lipids and carbs.The physical digestion consists of 3 muscle fiber cross sections: vertical, transverse, and horizontal, which allows for churning. There is chyme which is food and enzymes together with a pH of 3, and the rugae folds to increase surface areaThe physical digestion consists of 3 muscle fiber cross sections: vertical, transverse, and horizontal, which allows for churning. There is chyme which is food and enzymes together with a pH of 3, and the rugae folds to increase surface areaThe stomach can hold up to 2-4 cups and the food may stay 2-4 hours. Liquids pass through faster, no nutrients are absorbed, alcohol is absorbed, and it takes up to 30 days to shrink stomach.The stomach can hold up to 2-4 cups and the food may stay 2-4 hours. Liquids pass through faster, no nutrients are absorbed, alcohol is absorbed, and it takes up to 30 days to shrink stomach.Heartburn occurs when the stomach receives too much too fast or is irritated by the type of food. The vagus nerve surrounds the stomach. the Helicobacter pylori causes uclersHeartburn occurs when the stomach receives too much too fast or is irritated by the type of food. The vagus nerve surrounds the stomach. the Helicobacter pylori causes uclersFrom the pyloric sphincter food enters the small intestine. The small intestine is roughly 20 feet long. There are three parts, the duodenom, which neutralizes HCl, the jejunum, and the ileum. There are finger like projections called villi which have their own microvilli.From the pyloric sphincter food enters the small intestine. The small intestine is roughly 20 feet long. There are three parts, the duodenom, which neutralizes HCl, the jejunum, and the ileum. There are finger like projections called villi which have their own microvilli.The surface area is as large as a tennis court, chyme may stay from 5-12 hours, 80% of nutrients are absorbed here