Section 15.1: The digestive tract is a muscular tube lined by a mucous membrane
Section 15.2: Smooth muscle contractions mix and propel materials through the digestive tract
Section EOS1: End of Section 1
Section 15.3: The oral cavity contains the tongue, salivary glands, and teeth, and receives saliva from the salivary glands
Section 15.4: Teeth in different regions of the jaws vary in size, shape, and function
Section 15.5: The muscular walls of the pharynx and esophagus play a key role in swallowing
Section 15.6: The stomach is a muscular, expandable, J-shaped organ with three layers in its muscularis externa
Section 15.7: The stomach breaks down the organic nutrients in food
Section 15.8: The intestinal tract is specialized for absorbing nutrients
Section 15.9: The small intestine is divided into the duodenum, jejunum, and ileum
Section 15.10: Five hormones are involved in regulating digestive activities
Section 15.11: The large intestine stores and concentrates fecal material
Section 15.12: Neural reflexes and hormones work together to control digestive activities
Section EOS2: End of Section 2
Section 15.13: Secretions from three pairs of salivary glands produce saliva
Section 15.14: The liver, the largest visceral organ, is divided into left, right, caudate, and quadrate lopes
Section 15.15: The gallbladder stores and concentrates bile, and the pancreas has vital endocrine and exocrine functions
Section 15.16: Clinical Module: Disorders of the digestive system are diverse and relatively common
Section EOS3: End of Section 3
