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Body planes and Directions and cavities (Section 1 (Body planes (Spaces…
Body planes and Directions and cavities
Section 1
Why do we have directional terms
Directional terms developed for use on describing the human body
Describes relationship of one body part to another when the body is anatomic position
Body planes
Imaginary lines drawn through body at various levels to separate body into sections
Directional terms created by body planes
three main body plane: Transverse, midsaggital, frontal
Transverse plane is a horizontal plane that divides the body into a top and a bottom half (superior = body parts above the other body parts)(Cranial = body parts located near the head)(Caudal = body parts located near the tail of the spinal cord)
Midsagitttal divides the body into left and right sections(frontal divide the body into front and back sections)(Ventral and anterior is body parts on the front)( dorsal/ posterior is body parts on the back)
Proximal and distal are other directional terms that describe location of the extremities in relation to the mian trunk of the body.(proximal- close to point of referance)(distal- far from the point of referance)
Spaces within the body
Dorsal cavity- along continuous cavity located on the back of body
Cranial cavity- contains the brain
Spinal cavity- contains the spine
Ventral cavities- separated into two cavities by the diaphragm
Thoracic cavity- contains esophagus, trachea, lungs, ect.
Abdominal/pelvic- also divided into upper and lower part
Three small cavities
Orbital- contains the eyes
Nasal- for nose stuctures
Buccal- mouth that has teeth and tongue
Abdominal regions
Right upper quadrant (RUQ)
Left upper quadrant (LUQ)
Right lower quadrant (RLQ)
Left lower quadrant (LLQ)
Epigastric, umbilical, hypochondriac, lumbar, iliac