BIOL 103 Lecture Notes - Lecture 6: Pulmonary Pleurae, Esophageal Hiatus, Sphincter

• School: Chico State University
• Department: Biological Sciences
• Course: BIOL 103
• Professor: Gary Arnet

Document Summary

Serous membranes (lining around the lungs or lung cavities): Visceral pleura (lining on the organ itself) Visceral peritoneum (wrapped around liver or stomach) Parietal peritoneum lines cavity wall (green line) visceral peritoneum lines organs (green line) Double layers of peritoneum which attach organs to cavities. Keeps abdominal organs from rubbing against abdominal muscles, hangs likes apron. Attaches the stomach to the liver, very thin membrane. Circle shape between abdominal wall and liver. Between abdominal wall and small intestine, serves as support for the small intestine. It is attached to posterior wall via the mesocolon shown above mc. Remember that membranes and cavities may be asked on. Example: you could be shown a model of a liver and the question could be what membrane covers this organ? . Through which membrane does this pin first pass? . From mouth to anus (30 ft long) Lingual frenulum (tongue to floor of mouth), anchors it down.