digestive system Flashcards
an organ system responsible for transporting and digesting foodstuffs, absorbing nutrients, and expelling waste.
Gastrointestinal tract
includes the lips, the inside lining of the lips and cheeks (buccal mucosa), the teeth, the gums, the front two-thirds of the tongue, the floor of the mouth below the tongue, and the bony roof of the mouth (hard palate).
Oral Cavity
the bony front part of the palate.
Hard palate
the fleshy, flexible part toward the back of the roof of the mouth.
Soft palate
a fleshy extension at the back of the soft palate that hangs above the throat.
Uvula
a small fold of mucous membrane extending from the floor of the mouth to the midline of the underside of the tongue.
Lingual frenulum
the membrane-lined cavity behind the nose and mouth, connecting them to the esophagus.
Pharynx
the part of the alimentary canal that connects the throat to the stomach; the gullet.
Esophagus
a mucous membrane.
Mucosa
the layer of areolar connective tissue lying beneath a mucous membrane.
Submucosa
a region of muscle in many organs in the vertebrate body, adjacent to the submucosa.
Muscularis externa
the tissue of a serous membrane.
Serosa
the part of the peritoneum that lines the abdominal viscera
Visceral peritoneum
is attached to the abdominal wall and the pelvic walls.
Parietal peritoneum
a fold of the peritoneum that attaches the stomach, small intestine, pancreas, spleen, and other organs to the posterior wall of the abdomen.
Mesentary
the internal organ in which the major part of the digestion of food occurs, being a pear-shaped enlargement of the alimentary canal linking the esophagus to the small intestine.
Stomach
the top of your stomach/bottom of your esophagus. It opens to allow the food you just chewed to enter your stomach.
Cardioesophageal sphincter
a band of smooth muscle at the junction between the pylorus of the stomach and the duodenum of the small intestine.
Pyloric sphincter
a series of ridges produced by folding of the wall of an organ.
Rugae
the boundary of the stomach that forms a long usually convex curve on the left from the opening for the esophagus to the opening into the duodenum
Greater curvature
the boundary of the stomach that in humans forms a relatively short concave curve on the right from the opening for the esophagus to the opening into the duodenum
Lesser curvature
a large apron-like fold of visceral peritoneum that hangs down from the stomach.
Greater omentum
