Dogfish Shark Digestive System Functions

Chemically and physically breaks down food

• intestine

• esophagus

• mouth

• stomach

Forms a water tight seal in the esophagus

• rugae

• pyloric sphincter

• rectal gland

• papillae

Produces squalene, produces bile, detoxification center

• Gall bladder

• Liver

• Rectal gland

• Spiral intestine

Stores bile

• bile duct

• gall bladder

• liver

• spleen

Increase the surface area in the stomach

• Rugae

• papillae

• rectal gland

• pyloric sphincter

Receives secretions from gall bladder and pancreas

• Pyloric portion of stomach

• Spiral intestine

• Ventral pancreas

• Duodenum

Absorption of nutrients

• Stomach

• Spiral intestine

• Rectum

• Liver

Tags

NGSS.MS-LS2-3

Releases digestive enzymes (exocrine function) and controls blood sugar/releases insulin and glucagon (endocrine function) into the blood stream

• Pancreas

• Spleen

• Gall bladder

• Liver

Tags

NGSS.HS-LS1-3

Production of blood cells

• Spleen

• Pancreas

• Gall bladder

• Stomach

Body cavity that contains digestive, reproductive, and excretory organs

• Parietal peritoneum

• Visceral peritoneum

• Pleuroperitoneal