The internal area (angle), formed by the septum and upper lateral-cartilage, constitutes the internal valve of the nose; the sesamoid cartilages are adjacent to the upper lateral-cartilages in the fibroareolar connective tissue.
The internal area (angle) constitutes the internal valve of the nose. The internal area (angle) is formed by the septum. The internal area (angle) is formed by upper lateral-cartilage. The sesamoid cartilages are adjacent to the upper lateral-cartilages in the fibroareolar connective tissue.