Presentation on theme: "Body Organization Part II"— Presentation transcript:
1 Body Organization Part II BIO 201Kelly Trainor, PhD
2 Objectives Describe the anatomical position. Use correct anatomical terminology to describe body directions, body regions, and body planes or sections.Locate and name the major body cavities and their subdivisions and associated membranes, and list the major organs contained within them.Name the four quadrants or nine regions of the abdominopelvic cavity and list the organs they contain.
8 Body Planes and Sections A sagittal section divides the body (or organ) into left and right partsA median, or midsagittal, section divides the body (or organ) into equal left and right partsA frontal section divides the body (or organ) into anterior and posterior partsA transverse, or cross, section divides the body (or organ) into superior and inferior parts
10 Body Cavities Dorsal body cavity Cranial cavity houses the brain Spinal cavity houses the spinal cordVentral body cavityThoracic cavity houses heart, lungs and othersAbdominopelvic cavity houses digestive system and most urinary system organs
11 Body Cavities Thoracic cavity subdivisions: Two pleural cavities Each houses a lungMediastinumContains pericardial cavitySurrounds thoracic organsPericardial cavityEncloses heartnew
12 Serous MembranesThin, double-layered membrane separated by serous fluidParietal serosa lines internal body wallsVisceral serosa covers the internal organs