| C1 | first cervical nerve; first cervical vertebra; first component of complement |
|---|---|
| CI | first cranial nerve |
| C2 | second cervical nerve; second cervical vertebra; second component of complement |
| CII | second cranial nerve |
| C3 | third cervical nerve; third cervical vertebra; third component of complement |
| auricular notch | A notch between the supratragic tubercle and the crus of the helix. Synonym: incisura anterior auris, anterior auricular groove, auricular notch, sulcus auriculae anterior. (05 Mar 2000) |
|---|---|
| auricular point | A craniometric point at the centre of the opening of the external acoustic meatus; or, in certain cases, the middle of the upper edge of this opening. Synonym: auricular point. Origin: L. Auricularis, pertaining to the ear (05 Mar 2000) |
| auricular reflex | A movement of the ears in animals in response to a sound; part of the investigatory reflex. (05 Mar 2000) |
| auricular standstill | atrial standstill |
| auricular surface of ilium | The irregular, L-shaped articular surface on the medial aspect of the ilium that articulates with the sacrum. Synonym: facies auricularis ossis ilii. (05 Mar 2000) |
| auricular surface of sacrum | The rough articular surface on the lateral aspect of the sacrum that articulates with the ilium on each side. Synonym: facies auricularis ossis sacri. (05 Mar 2000) |
| auricular systole | Contraction of the atria. Synonym: auricular systole. (05 Mar 2000) |
| auricular tachycardia | Paroxysmal tachycardia originating in an ectopic focus in the atrium. Synonym: auricular tachycardia. (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) |
| auricular tubercle | A small projection from the upper end of the posterior portion of the incurved free margin of the helix. Synonym: tuberculum auriculae, darwinian tubercle, tuberculum superius. (05 Mar 2000) |
| auricular veins | See: anterior auricular vein, posterior auricular vein. (05 Mar 2000) |
| mastoid branches of posterior auricular artery | <anatomy, artery> Branches from stylomastoid branch of posterior auricular artery arising within the facial canal, distributed to the mastoid air cells. Synonym: rami mastoidei arteriae auricularis posterioris. (05 Mar 2000) |
| right auricular appendage | The small conical projection from the right atrium of the heart. Synonym: auricula dextra, right auricular appendage. (05 Mar 2000) |
| posterior auricular artery | <anatomy, artery> Origin: posterior aspect of external carotid just above the digastric muscle; course: ascends first between parotid gland and styloid process then between cartilage of auricle and the mastoid process; branches: muscular (digastric, stylohyoid and sternocleidomastoid), glandular (parotid), stylomastoid artery, occipital and auricular; anastomoses: anterior tympanic artery (via the stylomastoid artery) and occipital artery. Synonym: arteria auricularis posterior. (05 Mar 2000) |
| posterior auricular groove | The sulcus between the antitragus and cauda helicis overlying the antitragicohelicine fissure. Synonym: sulcus auriculae posterior. (05 Mar 2000) |