| pterygium unguis | Origin: NL, fr. Gr, properly a dim, akin to a feather. <medicine> A superficial growth of vascular tissue radiating in a fanlike manner from the cornea over the surface of the eye. Source: Websters Dictionary (01 Mar 1998) |
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| pterygo- | Wing-shaped, usually the pterygoid process. Origin: G. Pteryx, pterygos, wing (05 Mar 2000) |
| pterygoid | <anatomy> Like a bird's wing in form; as, a pterygoid bone. Of, pertaining to, or in the region of, the pterygoid bones, pterygoid processes, or the whole sphenoid bone. A pterygoid bone. <anatomy> Pterygoid bone, a process projecting downward from either side of the sphenoid bone, in man divided into two plates, an inner and an outer. The posterior nares pass through the space, called the pterygoid fossa, between the processes. Origin: Gr, a wing. Source: Websters Dictionary (01 Mar 1998) |
| pterygoid branch of maxillary artery | <anatomy, artery> Pterygoid branches of middle meningeal artery. Synonym: rami pterygoidei arteriae maxillaris. (05 Mar 2000) |
| pterygoid canal | An opening through the base of the medial pterygoid process of the sphenoid bone through which pass the artery, vein, and nerve of the pterygoid canal. Synonym: canalis pterygoideus, vidian canal. (05 Mar 2000) |
| pterygoid chest | A chest in which the anteroposterior diameter is shorter than the average. Synonym: alar chest, pterygoid chest. (05 Mar 2000) |
| pterygoid depression | A depression on the antero-medial side of the neck of the condylar process of the mandible, giving attachment to the lateral pterygoid muscle. Synonym: fovea pterygoidea, pterygoid depression, pterygoid pit. (05 Mar 2000) |
| pterygoid fissure | The cleft between the medial and lateral laminae of the pterygoid process of the sphenoid bone into which the pyramidal process of the palatine bone is fitted. Synonym: incisura pterygoidea, fissura pterygoidea, pterygoid notch. (05 Mar 2000) |
| pterygoid fossa | The fossa formed by the divergence posteriorly of the plates of the pterygoid process of the sphenoid bone; it lodges the origin of medial pterygoid and the tensor palati muscles. Synonym: fossa pterygoidea. (05 Mar 2000) |
| pterygoid fovea | A depression on the antero-medial side of the neck of the condylar process of the mandible, giving attachment to the lateral pterygoid muscle. Synonym: fovea pterygoidea, pterygoid depression, pterygoid pit. (05 Mar 2000) |
| pterygoid hamulus | The inferior, hook-shaped extremity of the medial plate of the pterygoid process. Synonym: hamulus pterygoideus, hamular process of sphenoid bone. (05 Mar 2000) |
| pterygoid laminae | See: lateral pterygoid plate, medial pterygoid plate. (05 Mar 2000) |
| pterygoid muscles | Two of the masticatory muscles: the internal, or medial, pterygoid muscle and external, or lateral, pterygoid muscle. Action of the former is closing the jaws and that of the latter is opening the jaws, protruding the mandible, and moving the mandible from side to side. (12 Dec 1998) |
| pterygoid nerve | <anatomy, nerve> One of two motor branches, lateral and medial, of the mandibular nerve, supplying the lateral and medial pterygoid muscles with fibres of the motor root of the trigeninal nerve. Synonym: nervus pterygoideus. (05 Mar 2000) |
| pterygoid notch | The cleft between the medial and lateral laminae of the pterygoid process of the sphenoid bone into which the pyramidal process of the palatine bone is fitted. Synonym: incisura pterygoidea, fissura pterygoidea, pterygoid notch. (05 Mar 2000) |
| pterion |
[TA] a point at the junction of the frontal, parietal, temporal, and greater wing of the sphenoid bone; about 3 cm posterior to the external angular process of the orbit.
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| pteriotic c. |
a center of ossification in the fetus and infant, from which are developed the tegmen tympani and the covering of the lateral semicircular canal.
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| pteroic acid |
a constituent of folic acid consisting of p-aminobenzoic acid linked to a substituted pteridine by a methylene bridge.
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| pteroylglutamate |
an anionic form of pteroylglutamic (folic) acid. See folic acid.
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| pteroylpolyglutamate |
any of the folate compounds having more than one glutamate residue; it is the usual form in which folates are stored in foods and in body tissues.
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| PTE | a reptile genus of Pterodactylidae |
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| PTE | lionfishes |
| PTE | southern Australian plant having feathery hairs surrounding the fruit |
| PTE | southern Australian plant having feathery hairs surrounding the fruit |
| PTE | used in former classifications to include all ferns and flowering plants and divided into the three classes Filicinae and Gymnospermae and Angiospermae |
| PTE | a genus of Megachiroptera |
| PTE | a variety of fruit bat |
| PTE | a variety of fruit bat |
| PTE | extinct flying reptile of the Jurassic and Cretaceous having a birdlike beak and membranous wings supported by the very long fourth digit of each forelimb |
| PTE | extinct flying reptiles: pterosaurs |
| PTE | genus of tropical Asian trees and shrubs |
| PTE | Indian tree having fragrant nocturnal white flowers and yielding a reddish wood used for planking |