| ECG | Electro-Cardio-Graphy(-Gram); ½ÉÀüµµ = EKG 1. Conducting System Structu... |
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| WT | Ward's triangle |
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| Reil's triangle | A triangular area on the lateral surface of the caudal half of the mesencephalon, bordered caudally by the slight prominence of the lateral lemniscus, dorsally by the base of the inferior colliculus and the brachium of the superior colliculus, and ventrally by the crus cerebri. Synonym: Reil's triangle, triangle of fillet, trigone of fillet, trigonum lemnisci. (05 Mar 2000) |
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| Reil, Johann | <person> German physician, neurologist, and histologist, 1759-1813. See: Reil's ansa, Reil's band, Reil's ribbon, Reil's triangle, limiting sulcus of Reil, circular sulcus of Reil, island of Reil. (05 Mar 2000) |
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| Reil's ansa | A complex fibre bundle curving around the medial edge of the internal capsule and connecting the anterior part of the temporal lobe (temporal cortex), amygdala, and olfactory cortex with the mediodorsal nucleus of the thalamus; it enters the thalamus as a component of the inferior thalamic peduncle which also contains a major part of the fibres connecting the mediodorsal nucleus to the orbitofrontal cortex. Synonym: peduncular ansa, peduncular loop, Reil's ansa. (05 Mar 2000) |
| Reil's band | One of the trabeculae carneae in the right ventricle of the heart; it carries part of the right branch of the A-V bundle from the septum to the anterior papillary muscle on the opposite wall of the ventricle. Synonym: trabecula septomarginalis, moderator band, Reil's band. (05 Mar 2000) |
| Reil's ribbon | A band of white fibres originating from the gracile and cuneate nuclei and decussating in the lower medulla; thence it passes upward through the centre of the medulla oblongata, close to the median raphe; on entering the pons it spreads out laterally to form a flat band ascending over the dorsal border of the pontine nuclei; in the mesencephalon it passes over the dorsal border of the substantia nigra and is displaced laterally by the red nucleus; passing medial to the medial geniculate body, the bundle enters and terminates in the ventral posterior nucleus of the thalamus. Throughout their course, the fibres retain a somatotopic order such that those originating from the gracile nucleus and representing the lower extremity lie lateral to those originating in the cuneate nucleus and representing the arm. The medial lemniscus conveys somatic-sensory information involved in tactile discrimination (two-point discrimination), position sense, and vibration sense. Synonym: lemniscus medialis, medial fillet, Reil's band, Reil's ribbon. (05 Mar 2000) |
| circular sulcus of Reil | A saemicircular fissure demarcating the insula from the opercula above, below, and behind. Synonym: sulcus circularis insulae, circular sulcus of Reil, limiting sulcus of Reil. (05 Mar 2000) |
| island of Reil | 1. An oval region of the cerebral cortex overlying the extreme capsule, lateral to the lenticular nucleus, buried in the depth of the fissura lateralis cerebri (sylvian fissure). Synonym: insular area, insular cortex, island of Reil. Synonym: island. 3. Any circumscribed body or patch on the skin. Origin: L. Island (05 Mar 2000) |
| threshold of island of Reil | The band of transition between the anterior portion of the gray matter of the insula and the anterior perforated substance; it is formed by a narrow strip of olfactory cortex along the lateral side of the lateral olfactory stria. Synonym: threshold of island of Reil. (05 Mar 2000) |
| limiting sulcus of Reil | A saemicircular fissure demarcating the insula from the opercula above, below, and behind. Synonym: sulcus circularis insulae, circular sulcus of Reil, limiting sulcus of Reil. (05 Mar 2000) |
| anal triangle | The posterior portion of the perineal region through which the anal canal opens; bounded by a line through both isehial tuberosities, the sacrotuberous ligaments and the coccyx. Synonym: regio analis, anal region. (05 Mar 2000) |
| anterior triangle of neck | The area of the neck bounded by the mandible, the anterior border of the sternocleidomastoid muscle, and the anterior midline of the neck; it is subdivided into carotid, muscular, submandibular, and submental triangles. Synonym: anterior region of neck, regio cervicalis anterior, trigonum cervicale anterius. (05 Mar 2000) |
| Assezat's triangle | A triangle formed by lines connecting the nasion with the alveolar and nasal point; used to indicate prognathism in comparative craniology. (05 Mar 2000) |
| auricular triangle | A triangle formed by the base of the auricle and by lines drawn from the true tip of the auricle to the extremities of the base. (05 Mar 2000) |
| axillary triangle | A triangular area embracing the medial aspect of the arm, the axilla, and the pectoral region which is one of the seats of predilection for the petechial initial rash of smallpox. (05 Mar 2000) |
| Beclard's triangle | Area bounded by the posterior border of the hyoglossus muscle, the posterior belly of the digastric and the greater horn of the hyoid bone. (05 Mar 2000) |
| Bonwill triangle | An equilateral triangle formed by lines from the contact points of the lower central incisors, or the medial line of the residual ridge of the mandible, to the condyle on either side and from one condyle to the other. (05 Mar 2000) |
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