Why is the triangle of the neck important?
The triangles of the neck are important because of their contents, as they house all the neck structures, including glands, nerves, vessels and lymph nodes.
What is triangle of the neck?
The triangular space in front of this muscle is called the anterior triangle of the neck; and that behind it, the posterior triangle of the neck. The anterior triangle is further divided into muscular, carotid, submandibular and submental and the posterior into occipital and subclavian triangles.
What are the divisions triangles of the neck?
The submandibular and submental triangles are the superior divisions, while the muscular and carotid triangles compose the inferior divisions of this anterior neck compartment. The submandibular triangle is delineated by the inferior border of the mandible and the anterior and posterior bellies of the digastric muscle.
What is posterior triangle of neck?
The posterior triangle has the following boundaries: 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.
What is the origin of sternocleidomastoid?
Sternocleidomastoid muscle
| Sternocleidomastoid | |
|---|---|
| Origin | Manubrium and medial portion of the clavicle |
| Insertion | Mastoid process of the temporal bone, superior nuchal line |
| Artery | Occipital artery and the superior thyroid artery |
| Nerve | Motor: spinal accessory nerve sensory: cervical plexus Proprioceptive: ventral rami of C2-3 |
Where is 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.
How many triangles are in the human body?
43 Triangles in anatomy ideas | anatomy, medical anatomy, human body anatomy.
What is submandibular triangle?
What are the boundaries of posterior triangle?
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.
How many triangles are 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.
Where is sternocleidomastoid found?
neck muscle
The sternocleidomastoid is a superficially located neck muscle that plays an important role in tilting your head and turning your neck, as well as other things. It courses from the back of your head and attaches to your breastbone and collar bone.
What is the origin of the sternocleidomastoid quizlet?
The sternocleidomastoid muscle is a two-headed neck muscle, which true to its name bears attachments to the manubrium of sternum (sterno-), the clavicle (-cleido-), and the mastoid process of the temporal bone (-mastoid).