| projection fibres | Nerve fibre's connecting the cerebral cortex with other centres in the brain or spinal cord; fibres arising from cells in the central nervous system that pass to distant loci. (05 Mar 2000) |
|---|---|
| projection lens | <microscopy> The final lens in the electron microscope. The lens focuses the electrons onto a fluorescent screen to produce the visible image. (05 Aug 1998) |
| projection perimeter | A perimeter that uses as target a spot of light that can be adjusted rapidly as to size, brightness, and colour, and moves silently at any desired speed. (05 Mar 2000) |
| projection system | The system of axons carrying stimuli from one portion of the nervous system to other portions. (05 Mar 2000) |
| Stenvers projection | Oblique radiographic projection of the skull devised to provide an unobstructed view of the petrous bone, bony labyrinth, internal auditory canal, and meatus. Synonym: Stenvers view. (05 Mar 2000) |
| submental vertex projection | Radiographic projection devised to obtain direct visualization of the base of the skull. Synonym: axial view, base projection, submental vertex projection, submentovertical projection, verticosubmental view. (05 Mar 2000) |
| submentovertical projection | Radiographic projection devised to obtain direct visualization of the base of the skull. Synonym: axial view, base projection, submental vertex projection, submentovertical projection, verticosubmental view. (05 Mar 2000) |
| oblique projection | Any radiographic projection between frontal and lateral. (05 Mar 2000) |
| occipitomental projection | A PA radiographic view of the skull made with the orbitomeatal line at an angle of 37 |
| Towne projection | Reverse tilted AP radiographic projection devised to permit demonstration of the entire occipital bone, foramen magnum, and dorsum sellae, as well as the petrous ridges. Synonym: half axial view, half-axial projection, Towne view. (05 Mar 2000) |
| Towne projection radiograph | See: Towne projection. (05 Mar 2000) |
| enamel projection | Extension of enamel into furcation. (05 Mar 2000) |
| erroneous projection | <ophthalmology> The faulty visual sensation arising secondarily to underaction of an ocular muscle. Synonym: erroneous projection. (05 Mar 2000) |
| false projection | <ophthalmology> The faulty visual sensation arising secondarily to underaction of an ocular muscle. Synonym: erroneous projection. (05 Mar 2000) |
| lateral projection | Radiographic projection with the X-ray beam in a coronal plane. (05 Mar 2000) |