[6] PLANES, BODY CAVITIES, AND SEROUS MEMBRANES

Planes

• imaginary flat surfaces.

Sagittal Plane

• runs vertically through the body and separates it into right or left parts

• Means the fight of an arrow.

Medial Plane

• sagittal plane that passes through the midline of the body, dividing it into equal halves

Transverse Plane

• horizontal plane

• Runs parallel tot he surface of the ground, dividing into superior and inferior parts.

Frontal plane

• coronal plane

• Runs vertically from the right to the left and divides the body into aterior and posterior parts.

Longitudinal Plane

• cut along the length of an organ.

Transverse section

• cross section

• Cuts completely though an organ

Oblique Section

• a cut made diagonally across the long axis

Thoracic Cavity

• surrounded by the ribcage and is separated by the muscular diaphragm

• Divided into right and left parts by a center structured called mediastinum that houses heart, thymus, trachea, esophagus and other structures.

Mediastinum

• divide right and left parts that houses the heart, thymus, esophagus, trachea and other structures.

Abdominal Cavity

• bounded primarily by the abdominal muscles.

• Contains the stomach, intestines, liver, spleen, pancreas ad kidney

Pelvic cavity

• small space enclosed by the bones of the pelvis

• Contains the urinary bladder, pat of the large intestine and internal reproductive organs.

Serous membranes

• lines the trunk cavities and cover the organs of these cavities

Visceral Serous membrane

• inner wall

Parietal Serous membrane

• outer wall

Mesenteries

Hold the abdominal organs in place and provide a passage way for blood vessels and nerves to organs.

Pedicarditis

• inflammation of the pericardium

Pleurisy

• inflammation of the pleura

Peritonitis

• inflammation of the peritoneum