Digestive System Flashcards
Esophagus
No digestion and is only food tube. Peristalsis moves food down
Mouth
Mechanical digestion (chewing) chemical digestion of carbs. The enzyme is salivary amylase
Stomach
Protein digestion and contains hydrochloride acid
Pancreas
Makes enzymes that are released into small intestine to break down carbs, lipids and proteins
Small intestines
Digestion of carbs lipids and proteins. Absorption of digested material by villi.
Large intestines
Reabsorption of water by villi, stores feces to be excreted in rectum
Liver
Makes bile to emulsify fat, physical digestion
Epiglottis
Prevents food from entering the wrong pipe
Peristalsis
Rhythmic muscular contractions used to move food through our digestive tract
What organs have peristalsis ?
Esophagus, stomach, small intestines, large intestines….no accessory organs
Villi
Finger like projections that are only in the small and large intestines to increase surface area for absorption of building blocks,surrounded by blood vessels to transport the nutrients
What are the accessory organs?
FOOD DOESNT PASS THROUGH THEM ,THEY ONLY AIDS THE FOOD Liver, gall bladder ,and pancreas
Gall bladder
Stores bile
Why do enzymes break macronutrients to micronutrients?
The micronutrients are small enough to be transport to cells, not macronutrients
Name the building blocks of the macronutrients protein ,carbohydrate and lipids.
Amino acid, monosaccharides , and 3 fatty acids and glycerol
Bile
Made in the liver and stored in the gallbladder; used to mechanically break down fats
Vitamins and minerals
Small and don’t have to be digested first, vitamins act as coenzymes
Ucler
Caused by bacteria-symptom is pain and vomiting-effects are erosions- treatment is diets and antibiotics
Colon cancer
Causes are obesity,lack of calcium-symptoms often are none but diarrhea and constipation -effects are abdominal pain and fatigue- treatments are chemo and radiation
Constipation
Causes are removal of too much water and bad peristalsis -symptoms are infrequent fecal removal- effects are weight lose and blood in stool- treatments is eating more roughage
Diarrhea
Causes by intestinal infection -symptoms are watery feces- effects are dehydration-treatments are water and antibiotics
Appendicitis
Causes are infected and inflamed appendix -symptoms are pain and discomfort - effects are cramps- treatment is removal
Anorexia nervosa
Causes are emotional/psych-symptoms are severe weight loss and nutritional deficiency-effects are appearing unhealthy- treatment is counseling
Bulimia
Causes are emotional/psych-symptoms are binge and purge-effects may be appearing healthy- treatment is counseling