What are the contents of the posterior triangle of the neck?
Contents. The posterior triangle contains level 5 lymph node chains. These include spinal accessory and transverse cervical nodes. Depending on the location of the nodes above or below the accessory nerve, they are sub grouped as level 5a (above) or level 5b (below).
What is the posterior border of the posterior triangle of the neck?
trapezius muscle
The posterior border is the anterior margin of the trapezius muscle, while the inferior border is the middle one-third of the clavicle.
How can I remember my neck muscles?
Mnemonic
- C: constrictor muscle (middle pharyngeal)
- H: hyoglossus muscle.
- D: digastric muscle (intermediate tendon)
- S: stylohyoid muscle.
- G: geniohyoid muscle.
- M: mylohyoid muscle.
- T: thyrohyoid muscle.
- O: omohyoid muscle.
What are the contents of submental triangle?
Contents. It contains one or two lymph glands, the submental lymph nodes (three or four in number) and Submental veins and commencement of anterior jugular veins.
What forms the posterior triangle roof?
Boundaries
- anterior: posterior border of sternocleidomastoid.
- posterior: anterior border of trapezius.
- inferior: middle third of the clavicle.
- roof: skin, superficial fascia and the investing layer of deep cervical fascia.
What is the neck triangle called?
The carotid triangle is bordered by the posterior belly of the digastric muscle, the superior belly of the omohyoid muscle, and the anterior border of the SCM. The floor and medial wall of this triangle is formed by the hyoglossus, thyrohyoid, and inferior and middle pharyngeal constrictor muscles.
What separates the anterior and posterior triangles of the neck?
The sternocleidomastoid muscle divides the neck region into posterior and anterior triangles.
What are the anterior and posterior triangles of the neck?
The anterior triangle is further divided into muscular, carotid, submandibular and submental and the posterior into occipital and subclavian triangles.
How do I remember my head and neck anatomy?
A mnemonic to remember the nerve supply to the scalp is: GLASS Mnemonic G: greater occipital nerve / greater auricular nerve L: lesser occipital nerve A: auriculotemporal nerve S: supratrochlear nerve S: supraorbital nerve Please note that other nerves also contribute, see anatomy articl…
What are the triangles of neck?
The anterior triangle is further divided into muscular, carotid, submandibular and submental and the posterior into occipital and subclavian triangles….
| Triangles of the neck | |
|---|---|
| Latin | Trigonum cervicale Trigonum colli Regio cervicalis |
| Anatomical terminology |
What is the area between chin and neck called?
Submental space
The submental space is a fascial space of the head and neck (sometimes also termed fascial spaces or tissue spaces). It is a potential space located between the mylohyoid muscle superiorly, the platysma muscle inferiorly, under the chin in the midline….
| Submental space | |
|---|---|
| Latin | Spatium submentale |
| Anatomical terminology |
What are the two major triangles of the neck?
The triangles of the neck are the topographic areas of the neck bounded by the neck muscles. The s ternocleidomastoid muscle divides the neck into the two major neck triangles; the anterior triangle and the posterior triangle of the neck, each of them containing a few subdivisions.
What are the subdivisions of the posterior triangle?
The subdivisions of the posterior triangle are occupied by the regional lymph nodes, the third part of the subclavian artery, suprascapular and transverse cervical branches of the thyrocervical trunk, external jugular vein, trunks of the brachial plexus and the fibers of the cervical plexus .
Where does the muscular triangle begin and end?
The muscular (omotracheal) triangle also shares one margin with the anterior triangle – the median line of the neck. However, the muscular triangle begins at the inferior border of the body of the hyoid bone.
Is the digastric triangle superior to the anterior triangle?
Like the anterior triangle, the digastric ( submandibular) triangle is limited superiorly by the same structures. Its inferior boundaries are formed by the posterior belly of the digastric and stylohyoid muscles posteriorly, and the anterior belly of the digastric muscle anteriorly.