Digestive System Flashcards
Functions of Digestive system:
(IDEA)
Ingestion
Digestion
Absorption
Elimination
Parts of Digestive System
(DDA)
Digestive tube
Digestube glands
Accessory parts
Digestive tube is consists of:
(MOPESSL)
Mouth
Oral cavity
Pharynx
Esophagus
Stomach
Small intestine
Large intestine
Digestive glands is consists of:
(SGGLP)
Salivary glands
Gastric glands
Goblet cells
Liver
Pancreas
Types of Digestion
Physical & Chemical
Digestive tube: ANTERIOR OPENING OF THE TUBE
Mouth
Digestive tube: CAVITY IMMEDIATELY POSTERIOR TO THE MOUTH
Oral Cavity
Oral cavity is bounded by:
- CHEEKS
- TONGUE
- HARD AND SOFT PALATE
- TEETH
- TONSILS
Digestive tube: POSTERIOR PART OF THE ORAL CAVITY FOR PASSAGE OF FOOD AND AIR
Pharynx
Digestive tube: COLLAPSIBLE MUSCULAR TUBE
Esophagus
Digestive tube: HIGHLY MUSCULAR POUCH
Stomach
Types of Sphincters
Cardiac
Pyloric
Duodenum
Digestive tube: LONGEST PART OF THE DIGESTIVE TUBE
Small intestine
Small intestine is divided into 3 portions:
Duodenum - neutralizes acid
Jejunum - extensive blood supply
Ileum - blood supply limited, peristaltic movements are slower
Digestive tube: MOST POSTERIOR PART
Large Intestine
Large intestines is divided into 3:
Caecum - absorbs fluids and salts
Colon - lubricate and absorbs remaining fluid, storage of feces, and lubricate feces
Sigmoid and Rectum -terminal segment
Digestive tube: TERMINAL OPENING OF THE DIGESTIVE TUBE FOR DEFECATION
Anus
DIGESTIVE GLANDS: Salivary glands: below the ear
Parotid glands
DIGESTIVE GLANDS: Salivary glands: floor of the oral cavity
Sub Mandibular Glands
DIGESTIVE GLANDS: Salivary glands: under the tongue
Sublingual gland
MICROSCOPIC GLANDS FOUND IN THE GASTRIC MUCOSA, Hydrochloric acid (HCl)
Gastric glands
MICROSCOPIC UNICELLULAR GLANDS FOUND IN THE INTESTINAL MUCOSA, secretes succusentericus
Goblet cells
Largest gland divided into lobes, secretes bile
Liver
LARGE LOBULATED GLAND WHICH IS BOTH AN ENDOCRINE AND EXOCRINE GLAND
Pancreas
