Presentation on theme: "Body Planes, Directions, & Cavities"— Presentation transcript:
1 Body Planes, Directions, & Cavities Med Terms & Principles of Health ScienceBECKY JACKSON, R.N.
2 Purpose of Body Planes & Directions To document info about pts., terms have to be used that specify regions or directions of the bodyEx: to identify locations of pain or injury, write: 1 cm. laceration on the right anterior forearm, distal to the elbow.
3 These locations are based on “anatomical position” of the body-the position with the body upright with arms at the sides and the palms forward.
4 Body PlanesImaginary lines drawn through the body to separate the body into sectionsTransverseMedian or sagittalFrontal or coronal
5 Transverse planeHorizontal plane that divides the body into a top & bottom halfSuperior:body parts above other partsInferior:body parts below other partsEx:Knee is superior to ankle but inferior to hip
6 Midsagittal or median plane Divides the body into left and right sidesMedial-body parts close to midline or middleLateral:body parts away from the midline or middle
7 Frontal (or coronal) plane Divides the body into a front and back section
8 Cranial (cephalic) vs caudal Cranial: towards the headCaudal: towards the tail
9 Medial vs lateral Medial: close or towards the midline Lateral: away from the midline
10 Superior vs inferior Superior: towards the top Inferior: towards the bottom
11 Anterior vs posteriorAnterior or Ventral: towards the front of the bodyPosterior or Dorsal: towards the back of the body
13 Proximal vs distalUsed to describe the location of the extremeties in relation to the main trunk of the body or the point of reference.Body parts close to point of reference-proximalBody parts away from point of reference-distal
14 Proximal & DistalExample: With the shoulder as the point of reference, the wrist is distal (further away) & elbow is proximal (closer) to shoulder.
15 Directions Superior vs inferior Cranial vs caudal Medial vs lateral Anterior vs posteriorDorsal vs ventralProximal vs distal
17 Dorsal cavityOne long continuous cavity-smaller than anterior cavitiesCranial cavity(cephalic) contains the brainSpinal cavity: contains the spinal cord
18 Ventral or Anterior cavity-larger than dorsal cavities Thoracic cavity: contains esophagus, trachea, bronchi, lungs, & heart, lg. blood vesselsAbdomino-pelvic cavityUpper Abdominal cavity: stomach, large intestine (colon), small intestine, liver, gallbladder, pancreas, spleenLower abdominal-pelvic cavity: urinary bladder, reproductive organs, last part of large intestineDiaphragm: muscle that separates the thoracic cavity from the abdomino-pelvic
34 Image CitationsSlide 11: photo of a dog illustrating dorsal, ventral, anterior and posterior, 8/27/06,Slide 14: Body cavities, 8/31/06,Slide 16, 17: Delmar Learning’s Medical Terminology Image Library, Second Edition, Version 1.0, 2003.