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(Some people consider the femoral triangle to be smaller hence the medial border being at the lateral border of the adductor longus muscle.) [2] laterally by the medial border of the sartorius muscle. [2] The apex of the triangle is continuous with the adductor canal. [2] The roof is formed by the skin, superficial fascia, and deep fascia ...
The posterior triangle has the following boundaries: [1] Apex: Union of the sternocleidomastoid and the trapezius muscles at the superior nuchal line of the occipital bone. Anteriorly: Posterior border of the sternocleidomastoideus. Posteriorly: Anterior border of the trapezius. Inferiorly: Middle one third of the clavicle
The superior lumbar (Grynfeltt-Lesshaft) triangle is formed medially by the quadratus lumborum, laterally by the posterior border of internal abdominal oblique muscle, and superiorly by the 12th rib. The floor of the superior lumbar triangle is the transversalis fascia and its roof is the external abdominal oblique muscle.
Inferior boundary (apex) Jugular notch in the manubrium of the sternum: Anterior boundary: Midline of the neck from chin to the jugular notch Posterior boundary: The anterior margin of sternocleidomastoid: Superior boundary (base) The lower border of the body of the mandible, and a line extending from the angle of the mandible to the mastoid ...
The adductor canal extends from the apex of the femoral triangle to the adductor hiatus. It is an intermuscular cleft situated on the medial aspect of the middle third of the anterior compartment of the thigh, and has the following boundaries: medial wall - sartorius. posterior wall - adductor longus and adductor magnus.
Lexell's proof by breaking the triangle A ∗ B ∗ C into three isosceles triangles. The main idea in Lexell's c. 1777 geometric proof – also adopted by Eugène Catalan (1843), Robert Allardice (1883), Jacques Hadamard (1901), Antoine Gob (1922), and Hiroshi Maehara (1999) – is to split the triangle into three isosceles triangles with common apex at the circumcenter and then chase angles ...
The term apex may used in different contexts: In an isosceles triangle, the apex is the vertex where the two sides of equal length meet, opposite the unequal third side. [1] Here the point A is the apex. In a pyramid or cone, the apex is the vertex at the "top" (opposite the base). In a pyramid, the vertex is the point that is part of all the ...
The deltoid ligament (or medial ligament of talocrural joint) is a strong, flat, triangular band, attached, above, to the apex and anterior and posterior borders of the medial malleolus. The deltoid ligament supports the ankle joint and also resists excessive eversion of the foot. [1] The deltoid ligament is composed of 4 fibers: