DIGESTIVE SYSTEM Flashcards
break down the food materials that were ingested in order to harness energy
Digestive System
entry point of food and water towards the GI cana
mouth
masticate food materials in the mouth for between facilitation of mastication
Teeth
Serves as the main organ for tasting the food ingested
tongue
secretes saliva which contains an enzyme known as “salivary amylase” or “ptyalin” that catalyzes primary carbohydrate digestion.
Salivary Glands
serves as the passageway of both food and air
Pharynx
Connects the mouth to the cardiac end of the stomach
Esophagus
Passageway of bolus to get to the stomach via peristalsis
Esophagus
Further mechanical and chemical digestion of food materials ingested
Stomach
Passageway of bolus to get to the stomach via peristalsis
Esophagus
Further mechanical and chemical digestion of food materials ingested
Stomach
Site of primary fat digestion
Stomach
absorbs nutrients from the stomach through small-finger like projection called “microvilli”
Small intestine
site of primary lipid digestion
Small intestine
Three parts of small intestine
Duodenum
Jejunum
Ileum
DJ ILEUM
Longest portion of the small intestine
Ileum
i(LONG)eum
Absorptions of water not absorbed in the small intestine
Large intestine
Serves as the temporary storage of undigested material
Large Intestines
Serves as the exit point of the fecal materials from the body
Rectum
Masticated food material that passes through the esophagus
Bolus
Mechanically and chemically digested food materials from the stomach acted upon by the acidic substances.
Chyme
Specialized organ that has a modified epithelium that contains specific cells with specific secretions that aid in the digestion and protection of the stomach walls against its very acidic environment.
Stomach
protects the wall of the stomach against acidic environment in it; activated into mucus when reacted with water
Mucin - Mucin Neck Cell
activates pepsinogen into pepsin; maintains the aciidty of stomach
Hydrochloric Acid - Parietal Cells
reacts with HCl to be activated into pepsin and carry out chemical digestion in the stomach
Pepsinogen - Chief Cells
digests milk in young mammal
Rennin
digests fat in the stomach
Lipase
Mucin can protect the stomacj even if t’s not activated into mucus
False - kelangan maging mucus muna siya
Mucin + water = mucus
