horizontal plane


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Related to horizontal plane: median plane

plane

 [plān]
1. a flat surface determined by the position of three points in space.
2. an imaginary flat surface that divides the body into sections (see accompanying figure). adj., adj pla´nar.
3. a specified level, as the plane of anesthesia.
4. to rub away or abrade; see also planing and plastic surgery.
5. a superficial incision in the wall of a cavity or between tissue layers, especially in plastic surgery, made so that the precise point of entry into the cavity or between the layers can be determined.
Planes of section. Transverse, sagittal, and frontal planes of the body. From Applegate, 2000.
coronal p's frontal p's.
datum plane a given horizontal plane from which craniometric measurements are made.
frontal p's those planes passing longitudinally through the body, an organ, or a part, at right angles to the median plane and dividing into front and back portions. Called also coronal planes.
horizontal plane transverse plane.
median plane one passing longitudinally through the body, an organ, or a part from front to back, dividing it into right and left halves.
sagittal p's vertical planes through the body parallel to the median plane or the sagittal suture, dividing the body into unequal left and right portions.
transverse plane one passing horizontally through the body, an organ, or a part at right angles to the median and frontal planes, dividing it into upper and lower portions. Called also horizontal plane.
vertical plane one perpendicular to a horizontal plane, such as a sagittal plane, median plane, or frontal plane.

horizontal plane

Etymology: Gk, horizein, to encircle; L, planum, level ground
1 any plane of the erect body parallel to the horizon, dividing the body into upper and lower parts.
2 a plane passing through a tooth at right angles to its long axis.

horizontal plane

Transverse plane Imaging A directional plane that divides the body, organ, or appendage into superior and inferior or proximal and distal

cardinal planes of the body

frontal (coronal), sagittal (median) and horizontal (transverse) planes of the body, each of which is oriented on the three planes of space
  • coronal/frontal plane plane equally dividing anterior and posterior aspects; it lies at right angles to sagittal and horizontal planes

  • horizontal/transverse plane plane parallel to the ground or horizontal surface; equally dividing superior and inferior areas; it lies at right angles to both sagittal and frontal planes

  • sagittal/median plane plane equally dividing left and right sides; it lies at right angles to both transverse and frontal planes

hor·i·zon·tal plane

(hōr'i-zon'tăl plān)
Surface parallel and relative to the horizon; in the anatomic position, horizontal planes are transverse planes; in the supine or prone positions, horizontal planes are frontal.

plane

1. a flat surface determined by the position of three points in space.
2. a specified level, as the plane of anesthesia.
3. to rub away or abrade. See also planing and plastic surgery.
4. a superficial incision in the wall of a cavity or between tissue layers, especially in plastic surgery, made so that the precise point of entry into the cavity or between the layers can be determined.

coronal plane
frontal plane, an ambiguous term when applied to quadrupeds and bipeds.
dorsal plane
any plane passing longitudinally through the body from side to side, at right angles to the median plane and dividing the body into dorsal and ventral parts. Called also coronal plane, frontal plane.
horizontal plane
one passing through the body at right angles to the median plane, and dividing the body into upper and lower parts.
inclined plane
an intraoral acrylic or metal appliance used in orthodontics to guide a tooth into a new position by using pressure applied when the mouth is closed normally. Commonest use is to move canines laterally.
median plane
one passing longitudinally through the body from front to back and dividing it into right and left halves.
nasal plane
the space between the nostrils.
nasolabial plane
the extension of the nasal plane between the nostrils into the upper lip in cattle.
nuchal plane
the flat surface at the back of the occipital bone below the nuchal crest.
rostral plane
the bare area on the dorsum of the snout of the pig.
sagittal plane
a vertical plane through the body parallel to the median plane (or to the sagittal suture) and dividing the body into left and right portions.
transverse plane
one passing through the body, at right angles to the sagittal and dorsal planes, and dividing the body into cranial and caudal portions.
vertical plane
one perpendicular to a horizontal plane, dividing the body into left and right, or front and back portions.
References in periodicals archive ?
Bucket-wheel excavator inclined with bucket wheel below horizontal plane intersecting IRC centre ([absolute value of [gamma]] < [absolute value of [beta]]).
The operating angle in the horizontal plane is nearly 60 degrees for each photodetector.
For PAA1000 fluid, the flow pattern at the horizontal plane at Re = 10 is shown in Fig.
He'd been thinking about Liverpool because of its long horizontal plane of water and disused docklands as a potential point for his sculpture.
Sample is shaken within a glass vessel, in the horizontal plane, by means of an oscillating arm that operates at a defined rate.
Perfection of the ESR technology caused development of a new equipment--a current-carrying mould, which ensures additional rotation of the slag pool in horizontal plane [10].
Table design separates the X- and Y-axes on a monobloc allowing for movement of the workpiece in the X direction exclusively while a second axis slide, moveable in the horizontal plane, accommodating the upper part of the C-frame, moving the wire in the Y direction for improved taper cutting of complex parts.
The Noble Wind Turbine spins in a horizontal plane and utilizes a combination of lift and drag forces working in concert to maximize its capture of wind power.
The garden beds, pavers, and fence grid are set on a horizontal plane to make the front entry appear more spacious than it is.
Swing on a horizontal plane and your club face hits the ball square.