| incisura terminalis auris | A deep notch separating the lamina tragi and cartilage of the external auditory meatus from the main auricular cartilage, the two being connected below by the isthmus. Synonym: incisura terminalis auris, auricular notch. (05 Mar 2000) |
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| incisura thyroidea inferior | A shallow notch in the middle of the lower border of the thyroid cartilage. Synonym: incisura thyroidea inferior. (05 Mar 2000) |
| incisura thyroidea superior | A deep notch in the middle of the upper border of the thyroid cartilage. Synonym: incisura thyroidea superior. (05 Mar 2000) |
| incisura tragica | The deep notch in the lower part of the auricle between the tragus and antitragus. Synonym: incisura intertragica, incisura tragica. (05 Mar 2000) |
| incisura trochlearis | The large saemicircular notch at the proximal extremity of the ulna between the olecranon and coronoid processes that articulates with the trochlea of the humerus. Synonym: incisura trochlearis, incisura semilunaris ulnae, semilunar notch. (05 Mar 2000) |
| incisura tympanica | The notch in the superior part of the tympanic ring bridged by the flaccid part of the tympanic membrane. Synonym: incisura tympanica, incisura rivini, Rivinus' incisure, Rivinus' notch, tympanic incisure. (05 Mar 2000) |
| incisura ulnaris | The concave surface on the medial side of the distal end of the radius which articulates with the head of the ulna. Synonym: incisura ulnaris. (05 Mar 2000) |
| incisura umbilicalis | The notch in the inferior border of the liver that accommodates the round ligament. Synonym: incisura ligamenti teretis hepatis, incisura umbilicalis, umbilical notch. (05 Mar 2000) |
| incisura vertebralis | One of the two concavities above (superior) and below (inferior) the pedicle of a vertebra; the notches of two adjacent vertebrae (plus the intervertebral disc) form an intervertebral foramen. Synonym: incisura vertebralis, intervertebral notch. (05 Mar 2000) |