vertical plane


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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.

vertical plane

Any body plane perpendicular to a horizontal plane.
See also: plane
References in periodicals archive ?
This selection is made by estimation of value [[phi].sup.*] pitch angle needed for obstacle avoidance in vertical plane.
The proposed method decomposes the three-dimensional motion to the horizontal and vertical planes and uses the optimal control method to obtain the optimal trajectory in real time by combining the current motion state and terminal constraint information.
Figure 8 shows the variation of ER distribution on the central vertical plane passing through the spark plug for various engine speeds at the time of spark (700 CAD).
At the same low tumble condition (100% intake opening), the difference between lean and stoichiometry are very obvious, similar to the vertical plane. High TKE regions induced by the flame propagation in stoichiometry condition are found all around the flame front.
The current study showed that, in a majority of the skulls, the infraorbital foramina were located lateral to the vertical plane passing through the SOF/N.
The force balances of the vehicle at the axis Ox in the vertical plane and horizontal plane are
The first step is to extract the boundaries of the vertical plane. For doing this, two approaches are considered.
Perelandra, where Ransom travels in the trilogy's second novel of the same name, also exhibits a geographic perpendicularity like Malacandra's that points upward along the vertical plane toward the divine.
In rats, the opposing eye movements between left and right eye mean that the line of vision varies by as much as 40 degrees in the horizontal plane and up to 60 degrees in the vertical plane. The consequence of these unusual eye movements is that irrespective of vigorous head movements in all planes, the eyes movements always move in such a way to ensure that the area above the animal is always in view simultaneously by both eyes -something that does not occur in any other region of the rat's visual field.
As shown in Figure 4(a), the proposed GPS antenna in the vertical plane has a maximum value of 9.69 dBic when the length of the upper diameter of the structure is 2.4 [[lambda].sub.0].
Equivalents to every position in the horizontal plane of the directivity diagram are traced in the vertical plane of the same diagram.
The minimum input displacement of 0.5 [micro]m was applied at the vertical plane of the centring flexure, as shown in Fig.