Log In. The peritoneum is a continuous membrane which lines the abdominal cavity and covers the abdominal organs (abdominal viscera). It acts to support the viscera, and provides pathways for blood vessels and lymph to travel to and from the viscera.
Parietal Peritoneum. The parietal peritoneum lines the internal surface of the abdominopelvic wall. It is derived from somatic mesoderm in the embryo. It receives the same somatic nerve supply as the region of the abdominal wall that it lines; therefore, pain from the parietal peritoneum is well localised.
The peritoneum consists of two layers that are continuous with each other: the parietal peritoneum and the visceral peritoneum. Both types are made up of simple squamous epithelial cells called mesothelium.
The lesser omentum is a double layer of visceral peritoneum, and is considerably smaller than the greater and attaches from the lesser curvature of the stomach and the proximal part of the duodenum to the liver.
A mesentery is double layer of visceral peritoneum. It connects an intraperitoneal organ to (usually) the posterior abdominal wall. It provides a pathway for nerves, blood vessels and lymphatics to travel from the body wall to the viscera.
The greater omentum consists of four layers of visceral peritoneum. It descends from the greater curvature of the stomach and proximal part of the duodenum, then folds back up and attaches to the anterior surface of the transverse colon.
As the appendix becomes increasingly inflamed, it irritates the parietal peritoneum, causing the pain to localise to the right lower quadrant.
Peritoneum. As you know, the peritoneum consists of the parietal and visceral peritoneum. The parietal peritoneum is supplied by the vessels of the abdominal wall. The visceral peritoneum is supplied by its associated viscera.
Abdominal aorta. The abdominal aorta is a continuation of the thoracic aorta, once it has traversed the aortic hiatus of the diaphragm. As it supplies just about everything in the abdomen and pelvis, it is a large caliber artery, and is as wide as a garden hose (~25mm) and gives numerous branches.
The inferior vena cava (IVC) is the headmaster of the veins department. It collects all the blood from the abdomen, pelvis and lower limbs and carries it to the right atrium of the heart . The IVC is formed by merging of the left and right common iliac veins at the L5 vertebral level, just in front of the aortic bifurcation.
Put simply, they are supplied and drained by the branches of three primary vessels: the celiac, superior and inferior mesenteric vessels. Let’s take a closer look into that.
The inferior vena cava then ascends to the right of the abdominal aorta along the vertebral column, receiving blood from numerous tributaries, and eventually passing through the caval foramen of the diaphragm. Notice that the veins draining the organs of gastrointestinal tract do not empty into the inferior vena cava.
The stomach is supplied by the branches of the celiac trunk, which include the right and left gastric, right and left gastro-omental, short gastric and posterior gastric arteries. Venous blood is conveyed by the right, left and short gastric, prepyloric, right and left gastro-omental veins.
It arises at the confluence of the superior mesenteric and splenic veins, just posterior to the neck of the pancreas.
Student Registered Nurse Anesthetist (SRNA) a registered nurse who is training in an accredited nurse anesthesia program.
One Lung Ventilation (OLV) term used in anesthesia related to thoracic surgery. OLV occurs when one long is ventilated and the other lung is collapsed temporarily to improve surgical access to the lung or thoracic cavity. Pump Oxygenator.