BIOL 1410 Lecture Notes - Muscular Layer, Muscularis Mucosae, Tunica Externa
18 Dec 2013
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Teeth, tongue, salivary glands, pancreas, liver, gall bladder. Digestion: mechanical/ motility, chewing, chemical, enzymes, acid / secretions, absorption, end products of digestion enter blood or lymph, defecation, undigested material and waste. Nerve network within the wall of the tube. Regulates function of mucosal glands and muscle. Visceral (on organ wall) and parietal (lines abdominal cavity wall) Sheet of 2 fused layers of visceral peritoneum. Provides stability to hold organs in place. Binds organs to cavity wall, each other: greater omentum, lesser omentum, suspends stomach from liver, mesentery (parietal, binds intestines to abdominal wall, fatty apron, over transverse colon, small intestine (protection, insulation, energy reserve) Similar layers in hollow organs of urinary respiratory reproductive systems. Smooth muscle allows movement of mucosa: lamina propria. Has blood and lymph vessels and lymph nodules/tissues (immune: mucous epithelium. Stratified squamous in esophagus, mouth and pharynx, anal canal. Wall is skeletal muscle, lined by mucous membrane. 3 types, some have taste buds: lingual glands.
