Body Cavities and Membranes

Planes and Positions, Body Cavities and MembranesPLANES3 major planes:

Median Sagittal Plane- a sagittal cut that runs directly through the median.

VS.POSITIONSThe Basic Regionsdorsal: toward the back of the bodyventral: toward the underside of the bodyanterior (cranial): toward the head end of the bodyposterior (caudal): toward the tail end of the body

DorsalVentralAnterior/SuperiorPosterior/Inferiorlateral: to the side of the bodymedian: toward the center of the bodyright and left: the pig's right and left, not yours!proximal or basal: closer to the trunkdistal: farther from the trunk

LateralProximal/BasalDistal

MedianRightProximal/BasalLeftDistalLateralBody Regionscranial region: headcervical region: neckthoracic region: trunkcaudal region: abdomoninal region/tail regionpelvic region: near pelvisPectoral region: shoulder area

1. cranial region: head2. cervical region: neckthoracic region: trunk

4. caudal region5. pelvic region: near pelvis6. Pectoral region: shoulder area1 2 3 4 5 6 Thoracic Cavity- above the diaphragmPleural Cavity- contains lungsPericardial Cavity- contains heart

Pericardial CavityAbdominal Cavity (Peritoneum)Cavity below the diaphragm

MEMBRANESMembranes- what is the function of the following?Parietal PleuraVisceral PleuraParietal PeritoneumVisceral PeritoneumPericardiumGreater OmentumMesenteryBreak it downParietals Line the CAVITY they are inViscerals Line the ORGANS

Pleura refers to the chest area (pleural cavity)Peritoneum refers to the abdominal area

Pericardial peri = around; cardial= the heartGreater Omentum- holds the spleen in place by attaching it to the stomachMesentery- between the parts of the small intestineSo lets try this againParietal PleuraVisceral PleuraParietal PeritoneumVisceral PeritoneumPericardiumGreater OmentumMesentery

Time to Clicker!

Which membrane covers the organs of the chest area?

Parietal pleuraParietal peritoneumVisceral pleuraVisceral peritoneumPericardiumGreater omentumWhich membrane attaches the spleen to the stomach?

Parietal pleuraParietal peritoneumVisceral pleuraVisceral peritoneumPericardiumGreater omentumWhich membrane lines the chest area cavity?

Parietal pleuraParietal peritoneumVisceral pleuraVisceral peritoneumPericardiumGreater omentumOther membrane typesSynovial Membranes - These membranes secrete a fluid to lubricate the ends of bones in joints.Serous Membranes These membranes secrete a watery fluid to keep the organs in the cavities lubricated and separated so they are able to move.MeningesThese membranes provide a protective covering for the brain and spinal cord.Mucous MembranesThese membranes line the tubes of the digestive system, respiratory system, urinary system, and reproductive system for protection.