Chapter 6 Flashcards
Division of the ventral cavity and peritoneal cavity that extends inferiorly from the diaphragm and is continuous with the pelvic cavity through the pelvic inlet.
Abdominal Cavity
Large muscle that assists inspiration and divides the ventral cavity into upper thoracic and lower peritoneal cavities.
Diaphragm
One of two main body cavities. Situated on the posterior (dorsal) side of the body. Contains the cranial cavity and spinal cavity.
Dorsal Cavity
Descriptive term given to the area superior to the pelvic inlet (linea terminalis) and inferior to the iliac crests.
False Pelvis or greater pelvis
Peritoneal compartment of the abdominal cavity that extends from the diaphragm to the pelvis and covers the width of the abdomen.
Greater Sac
Refers to certain body structures enclosed within the parietal peritoneal sac and covered by peritoneum. They are connected to the cavity wall by mesentery, double folds of peritoneum.
Intraperitoneal
Peritoneal compartment posterior to the stomach that is a diverticulum of the greater sac.
Lesser Sac or omental bursa
Imaginary line drawn from the symphysis pubis around to the sacral promontory, marking the dividing plane between the true and false pelves. The circumference of this plane is termed the pelvic inlet.
Linea Terminalis
Double folds of peritoneum that connect intraperitoneal body structures to the cavity wall.
Mesentery
A double layer of peritoneum that extends from the stomach to adjacent abdominal organs. Classified as two parts
Omentum
Portion of peritoneal lining that forms a closed sac (except in females, in whom a portion of the fallopian tubes opens into it).
Parietal Peritoneum
Division of the ventral cavity and peritoneal cavity that extends superiorly from the iliac crests to the pelvic diaphragm inferiorly. Continuous with the abdominal cavity.
Pelvic cavity
Describes the circumference of the linea terminalis.
Pelvic Inlet
Division of the ventral cavity. Largest body cavity, encompassing the abdomen and pelvis. Also known as abdominopelvic cavity.
Peritoneal Cavity
Thin, membranous sheet of tissue that secretes serous fluid. Serves as a lubricant and facilitates free movement between organs.
Peritoneum or Peritoneal Membrane