What are the triangles in the neck?
The neck is divided into two large triangles (anterior and posterior cervical triangles) by the sternocleidomastoid muscle. It arises from two heads (sternal and clavicular) inferiorly and takes an oblique course superiorly to insert into the mastoid process and lateral aspect of the superior nuchal line.
What does the anterior triangle of the neck contain?
The muscular triangle of the neck is the inferiormost triangle inside the anterior triangle. It is bounded superiorly by the superior belly of the digastric, inferiorly by the anterior border of the SCM and by the midline of the neck. It contains the viscera of the neck including the thyroid and parathyroid glands.
What structures are in the posterior triangle of the neck?
These borders include the trapezius muscle posteriorly, the sternocleidomastoid muscle anteriorly, and the middle one-third of the clavicle inferiorly. The union of the sternocleidomastoid and trapezius muscles at their insertion on the superior nuchal line of the occipital bone form the apex of the triangle.
What is the Suboccipital triangle?
The suboccipital triangles are a paired triangular-shaped space formed by the configuration of three paired muscles in the posterior neck between the occipital bone, C1 and C2.
How many triangles of the neck are there?
The three paired triangles are the submandibular (digastric), carotid, and muscular triangles. The unpaired triangle is the submental triangle.
What is in the submandibular triangle?
The submandibular triangle, also known as the digastric triangle, is bounded anteriorly by the anterior belly of the digastric muscle, posteriorly by the posterior belly of the digastric muscle, superiorly by the mandible, and inferiorly by the mylohyoid and hypoglossus muscles.
What does the submandibular triangle contain?
The anterior part contains the submandibular gland, superficial to which is the anterior facial vein, while imbedded in the gland is the facial artery and its glandular branches. Beneath the gland, on the surface of the Mylohyoideus, are the submental artery and the mylohyoid artery and nerve.
What triangles of the neck is the most important and why?
The supraclavicular triangle is a clinically important anatomical area. Diseases of the vessels and lymph nodes located in it cause various clinical syndromes. This triangle is the anterior division of the posterior cervical triangle.
What are the triangles of the neck?
Triangles of the Neck (Visual mnemonic) Help by adding tags… There are various triangles of the neck, largely divided by the sternocleidomastoid muscle to form anterior and posterior triangles. Some triangles are more ‘important’ that others, and this simplified visual mnemonic hopes to emphasises this.
What is the anatomy of the neck?
The neck is a geometric region that can be studied and operated using anatomical triangles. There are many triangles of the neck, which can be useful landmarks for the surgeon. A better understanding of these triangles make surgery more efficient and avoid intraoperative complications.
What is the difference between the anterior and posterior neck triangle?
The anterior triangle of the neck is further subdivided into four smaller triangles, while the posterior triangle is broken up into two smaller triangles. The anterior triangle is the triangular area of the neck found anteriorly to the sternocleidomastoid muscle.
What are the boundaries of muscular triangle?
Muscular Triangle: It is a paired subdivision of Anterior triangle, its boundaries are Midline of neck, superior belly of omohyoid muscle, anterior border of sternocleidomastoid muscle. Its contents are Sternohyoid, omohyoid, sternohyoid and thyrohyoid muscles, thyroid and parathyroid glands, pharynx.
