(n.) A prominence on the lower posterior portion of the concha of the external ear, opposite the tragus. See Ear.
Example Sentences:
(1) This paper describes the external ear anomalies found in this syndrome: short wide pinnae, often cupped and asymmetrical; distinctive triangular concha; discontinuity between the antihelix and antitragus; and 'snipped-off' portions of the helical folds.
(2) It is composed of five critical elements: concha, helix, antihelix, tragus, and lobule, and parts of lesser importance including antitragus, intertragic notch, and Darwin's tubercle.
(3) These lesions usually affect the helix of the ear, although the antihelix and, less commonly, the antitragus may be involved.
(4) From the patient's clinical examination and from review of 13 similar cases reported in the literature, the following phenotype emerged: constant features were psychomotor retardation, muscle hypotonia at birth, undescended testes in all males and abnormal auricles, typically with a prominent antitragus.
(5) Midface hypoplasia with hypertelorism and cleft palate, as well as strabismus, were present in 2 of our patients, whereas all 3 showed nystagmus and prominence of anthelix and antitragus.
(6) The most evocatory symptoms include: absent or poorly indicated nose bridge; pursed lips; shortness of the philtrum; and constant existence of a fold on the antitragus continuing the anthelix reachinghe insertion of the pinna.
(7) The helix, scaphoid fossa, triangular fossa, concha, antihelix, antitragus, intertragic incisure, and lobule can be seen at the level of the ear.
(8) It is seen less commonly in women and younger individuals, where the anatomic locations may vary to include the antihelix, antitragus, and other areas on the external ear.
(9) Essential points of the technique are perichondrial cartilage scratching at the superior crus and antihelical fold according to Stenström, mattress sutures applied to the perichondrium and soft tissues at the medial surface, and to these we add the trimming of the tail of the helix, thinning of the antitragus, and a double-spindle skin excision at the medial auricular surface.
(10) Five of the shown features determine the outer dimensions of the ear and the ear cartilage, and the remaining 39--the dimensions of the basic anatomical parts of the lateral surface of the ear, as follows: 1. lobulus auriculae, 2. concha auriculae, 3. tragus, 4. antitragus, 5. incisura intertragica, 6. anthelix, 7. helix, 8. porus acusticus externus.
(11) An unusual case of bilateral involvement of the antitragus is presented.
Auricle
Definition:
(n.) The external ear, or that part of the ear which is prominent from the head.
(n.) The chamber, or one of the two chambers, of the heart, by which the blood is received and transmitted to the ventricle or ventricles; -- so called from its resemblance to the auricle or external ear of some quadrupeds. See Heart.
(n.) An angular or ear-shaped lobe.
(n.) An instrument applied to the ears to give aid in hearing; a kind of ear trumpet.
Example Sentences:
(1) This article presents the author's preferred technique for reconstructing the auricle, simultaneously using Mustarde's mattress sutures, Cochrane's anterior scoring of the antihelix, and the approximating of the concha to the mastoid.
(2) Analogous results were obtained in semithin sections of GMA-embedded auricles stained by the periodic acid-Schiff (PAS) technique.
(3) The influence of electrolyte composition and glucose concentration of a cryoprotective medium on the survival of auricle fragments from adult rat hearts after storage at -196 degrees C was investigated.
(4) Microangiopathic changes were observed on the material obtained by skin biopsy of the auricle and the reason for selecting this localization was explained.
(5) 74 rat incisor odontogenic organs were autotransplanted intradermally into the auricle.
(6) Therefore, lg1 mutant sectors not only fail to induce ligule and auricle, but are also disrupting some form of intercellular communication that is necessary for the normally coordinated development of the ligular region.
(7) The patient has a typical saddle nose and drooping auricles.
(8) In 135 patients with mitral stenosis of the III and IV stages oxidative phosphorylation in the mitochondria of the left cardiac auricle was studied by the polarographic method.
(9) Besides the negative inotropic action of ethanol on cardiac muscle, this paper describes also an "indirect effect" which appears when the ethanol treated isolated strip auricle preparation is washed with low Ca Tyrode solution.
(10) In our histological examination of 42 ears (auricles) which were taken from 18 fetus and three adults, the intracartilaginous fibrous tissue with blood vessels and lymphatics were found in 12 ears and interruption of the auricular cartilage in 22 ears.
(11) This presentation will review two such cases as well as give an overview of the embryogenesis and teratogenesis of the auricle.
(12) In 1952, Goldenhar described a pair of monozygotic twins who were discordant for epibulbar dermoids, auricular appendages, malformations of the auricle, and hemifacial microsomia.
(13) Normal LE rats had low levels of left ventricular ANP mRNA and barely detectable ANP mRNA in the right ventricle, DI rats showed a 3-fold greater ANP mRNA concentration in the left ventricle than age-matched LE controls, and ANP mRNA levels were also increased in the left auricle of DI rats.
(14) (1) The increase in plasma ANF during volume expansion is not impaired in SHR with newly established hypertension; (2) captopril treatment decreases afterload and the changes in left ventricular end diastolic pressure during volume expansion in SHR, without affecting plasma ANF increases; (3) both the auricles, but not the ventricles, contribute to enhanced ANF secretion caused by acute volume expansion in SHR and WKY rats.
(15) The highest potassium decrease was observed in the left ventricle and right auricle.
(16) Biopsies of right auricle of human heart have been obtained during open heart surgery from 6 patients aged 23 to 49.
(17) Engel (1966) was the first to report a series of pseudocysts of the auricle in Chinese.
(18) A linear skin incision was made, beginning behind the auricle and extending along the anterior margin of the sternocleidomastoid muscle, and the sternocleidomastoid muscle was divided just below the tip of the mastoid process.
(19) 1) auricles on the posterior segment were absent, 2) five pairs of eyes were present in the anterior segments with the eye pairs 3 and 4 separated by an annulus, and 3) teeth were not observed, this specimen was identified as Dinobdella ferox.
(20) The effect of Na and K ions on active Na transport was studied in guinea-pig auricles by means of flame photometry.