| depression of optic disk | The normally occurring depression or pit in the centre of the optic disc. Synonym: excavatio disci, depression of optic disk, excavatio papillae, physiologic cup, physiologic excavation. (05 Mar 2000) |
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| depression, postpartum | Depression in women occurring usually within four weeks after the delivery of a child. The degree of depression ranges from mild transient depression to neurotic or psychotic depressive disorders. (12 Dec 1998) |
| involutional depression | Depression or psychosis first occurring in the involutional years (40 to 55 for women, 50 to 65 for men). (05 Mar 2000) |
| endogenous depression | <psychiatry> A clinical syndrome that includes a persistent sad mood or loss of interest in activities that persists for at least 2 weeks in the absence of external precipitants. This should not be confused with a grief reaction (death of loved one). Features may include change in eating habits, insomnia, early morning wakening, lack of interest, depressed mood, fatigue and suicidal thoughts. (27 Sep 1997) |
| exogenous depression | Similar signs and symptoms as endogenous depression but the precipitating factors are social or environmental and outside the individual. (05 Mar 2000) |
| lingual salivary gland depression | An indentation on the lingual surface of the mandible within which a portion of the submandibular gland lies; it appears radiographically as a sharply circumscribed ovoid radiolucency between the mandibular canal and the inferior border of the posterior mandible. Synonym: Stafne bone cyst, static bone cyst. (05 Mar 2000) |
| artery of pterygoid canal | Usually arises from the third part of the maxillary artery, but frequently from the greater palatine artery, within the pterygopalatine fossa. Passes posteriorly to run through the pterygoid canal with the corresponding nerve, supplying the contents and wall of the canal, the mucous membrane of the upper pharynx, the auditory tube and the tympanic cavity. Synonym: arteria canalis pterygoidei, vidian artery. (05 Mar 2000) |
| vein of pterygoid canal | A vein accompanying the nerve and artery through the pterygoid canal and emptying into the pharyngeal venous plexus. Synonym: vena canalis pterygoidei, vidian vein. (05 Mar 2000) |
| medial plate of pterygoid process | The smaller and more medial of the two bony plates extending downward from the point of union of the body and greater wing of the sphenoid bone on either side. Ending inferiorly in the pterygoid hamulus. Synonym: lamina medialis processus pterygoidei, medial plate of pterygoid process. (05 Mar 2000) |
| medial pterygoid | <anatomy, muscle> Origin, pterygoid fossa of sphenoid and tuberosity of maxilla; insertion, medial surface of mandible between angle and mylohyoid groove; action, elevates mandible closing jaw; nerve supply, nerve to medial pterygoid from mandibular division of trigeminal. Synonym: musculus pterygoideus medialis, internal pterygoid muscle, musculus pterygoideus internus. (05 Mar 2000) |
| medial pterygoid plate | The smaller and more medial of the two bony plates extending downward from the point of union of the body and greater wing of the sphenoid bone on either side. Ending inferiorly in the pterygoid hamulus. Synonym: lamina medialis processus pterygoidei, medial plate of pterygoid process. (05 Mar 2000) |
| groove of pterygoid hamulus | A groove at the base of the hamular process which forms a pulley for the tendon of the tensor veli palatini muscle. Synonym: sulcus hamuli pterygoidei, sulcus of pterygoid hamulus. (05 Mar 2000) |
| pharyngeal branch of the artery of pterygoid canal | Distributed to uppermost nasopharynx (pharyngeal recesses). Synonym: ramus pharyngeus arteriae canalis pterygoidei. (05 Mar 2000) |
| communicating branch of otic ganglion with medial pterygoid nerve | <anatomy, nerve> Branch of otic ganglion joining the nerve to the medial pterygoid muscle. Synonym: ramus communicans ganglii otici cum nervo pterygoideo mediali. (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) |