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Body Planes and Cavities Principles of Health Science.

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Presentation on theme: "Body Planes and Cavities Principles of Health Science."— Presentation transcript:

1 Body Planes and Cavities Principles of Health Science

2 Standard Anatomical Position

3 Body Planes Imaginary lines drawn through body to separate the body into section. Directional terms create planes Three main body planes: Transverse, Midsagittal (median), frontal (coronal) plane

4 Transverse Plane Horizontal plane Divides the body into a top half and bottom half o Directional terms associated with transverse: Superior – body parts above Inferior – body parts below

5 Midsagittal (median) Plane Divides the body into a right and left side o Directional terms associated with midsagittal: Medial – body parts close to midline Lateral – body parts away from the midline

6 Frontal or Coronal Plane Divides the body into front section and back section o Directional terms associated with frontal: Ventral or Anterior – body parts in front of plane or in front of the body Dorsal or Posterior – body parts in back of plane or in back of body

7 Directional Terms

8 Extremities in relation to trunk (point of reference) o Proximal – body part closest to point of reference o Distal – body part farther or most distant from the point of reference Example: Relationship between wrist, elbow and shoulder, with shoulder being the point of reference. o Wrist is distal to elbow o Elbow is proximal to shoulder

9 Body Cavities Spaces within body that contain vital organs Two main body cavities: Dorsal Cavity and Ventral Cavity

10 Dorsal Cavity One long, continuous cavity located on back of body Divided into two sections: o Cranial Cavity – contains the brain o Spinal Cavity – contains the spinal cord

11 Ventral Cavity Larger than dorsal cavity, separated into two cavities by the diaphragm. o Thoracic Cavity: located in the chest and contains heart, lungs and large blood vessels o Abdominal Cavity: divided into upper and lower part Upper Abdominal Cavity – contains stomach, small intestine, most of large intestine, liver, gallbladder, pancreas and spleen

12 Ventral Cavity, cont. -Lower Abdominal Cavity or pelvic cavity – contains urinary bladder, reproductive organs, and last part of the intestines

13 Additional Cavities Three small cavities o Orbital cavity: contains eyes o Nasal cavity: contains nose structures o Buccal cavity: contains mouth


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