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The depression in the external ear leading to its central opening.
- ‘A placebo point in the inferior concha and the active stomach point on the concha ridge (both innervated by vagus nerve) were isolated with the Agiscop DT.’
- ‘The ethmoid may exhibit two to four conchae (not including the inferior or maxilloturbinate).’
- ‘On either side of the crest are air sinuses, the sphenoid sinuses, which are partially roofed over by the sphenoid conchae.’
- ‘The auricle, the visible portion of the outer ear, collects sound waves and, with the concha, the cavity at the entrance to the external auditory canal, helps to funnel sound into the canal.’
- ‘The featured surface includes anatomically correct projections resembling the concha, tragus, antitragus and other features of the external surface of the animal ear.’
2(also nasal concha)Anatomy Zoology
Any of several thin, scroll-like (turbinate) bones in the sides of the nasal cavity.
- ‘What Wittmer does find is a very close and convincing homology between the conchae (turbinals, cristae, etc.) marked in red in the figures adapted from his review.’
- ‘From the roof, the olfactory epithelium extends down both sides of the nasal cavity to cover most of the superior concha laterally and 1 cm of nasal septum medially.’
- ‘An increase in the number of nasal conchae is common.’
- ‘He also had a large air cell (i.e., concha bullosa) within the left middle turbinate, which likely contributed to obstruction of ostia draining adjacent sinuses.’
- ‘Each inferior nasal concha is considered a facial pair of bones since they arise from the maxillae bones and projects horizontally into the nasal cavity.’
3A round or oval hammered metal disk used as decoration on jewelry, belts, harnesses, etc.
- ‘The centerpiece of the display is an exquisite turquoise and silver concha belt.’
- ‘Concha belts are one of the most striking articles of Indian Jewelry.’
- ‘A concha is a hammered silver disk or oval that often resembles a shell, flower, or sunburst.’
- ‘Ten luminous strands of liquid silver suspend this ornately detailed concha pendant.’
- ‘For example, an old concha belt will display wear marks where the tongue touches the buckle.’
Late 16th century from Latin (see conch).
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