The helix can be divided into three approximate parts: the ascending helix, which extends vertically from the root; the superior helix, which begins at the top of the ascending portion, extends horizontally and curves posteriorly to the site of Darwin tubercle (vide infra); the descending helix (sometimes called posterior), which begins ...

May 17, 2024 · Helix: This is the outermost curve of cartilage extending from the head to the ear lobe. Antihelix : This is a Y-shaped ridge inside the helix that follows the outer curve of the ear. Crux helix : This C-shaped ridge extends from the top of the helix to the bottom of the antihelix.

The helix is the prominent rim of the auricle. Where the helix turns downwards posteriorly, a small tubercle is sometimes seen, namely the auricular tubercle of Darwin.

Aug 8, 2018 · Superior helix: It starts at the top of the ascending part, expands horizontally and curves posteriorly towards the location of Darwin tubercle. Descending helix (a.k.a. posterior helix): Begins inferior towards Darwin tubercle and spreads out …

The first three hillocks are derived from the 1st branchial arch and form the tragus, crus of the helix, and helix, respectively. Cutaneous sensation to these areas is via the trigeminal nerve, the attendant nerve of the 1st branchial arch.

May 20, 2020 · The Helix (highlighted in yellow above) is comprised of the curved, outer ridge of the ear. The helix is divided further into 4 smaller areas: the helix root, the superior helix, the auricular tubercle and the helix tail.

Nov 24, 2022 · The helix is the outermost concaved section of the ear and it has a small protuberance at the 2 o’clock position called the auricular tubercle. The helix continues inferiorly and ends in the 4 o’clock position at the tail of the helix. Another raised cartilaginous structure called the antihelix mirrors the path of the

Mar 28, 2017 · The helix is the outer rim-like periphery of the ear that extends from the superior insertion of the ear on the scalp (root) to the termination of the cartilage at the earlobe (Figure 2).

Jun 4, 2023 · superior: begins at the end of the ascending portion when the helix curves and ends at the Darwin tubercle, a thickening of the skin at the junction of the upper and middle third. descending or posterior: inferior to the Darwin tubercle, ending at the superior edge of the ear lobe, the most inferior end of which may be non-cartilaginous

Jan 16, 2009 · The helix can be divided into three approximate parts: the ascending helix, which extends vertically from the root; the superior helix, which begins at the top of the ascending portion, extends horizontally and curves posteriorly to the site of Darwin tubercle (vide infra); the descending helix (sometimes called posterior), which begins ...