What is the occipital triangle?
The occipital triangle is one of the paired triangles in the posterior triangle of the neck. The triangles of the neck are surgically focused, first described from early dissection-based anatomical studies which predated cross-sectional anatomical description based on imaging (see deep spaces of the neck).
What passes through occipital triangle?
The accessory nerve is directed obliquely across the space from the Sternocleidomastoideus, which it pierces, to the under surface of the Trapezius; below, the supraclavicular nerves and the transverse cervical vessels and the upper part of the brachial plexus cross the space.
What are the contents of occipital triangle?
Contents
- spinal accessory nerve.
- cutaneous and muscular branches of the cervical plexus.
- upper most part of brachial plexus.
- supraclavicular nerve.
- transverse cervical vessels.
What runs through carotid triangle?
The main contents of the carotid triangle are the common carotid artery (which bifurcates within the carotid triangle into the external and internal carotid arteries), the internal jugular vein, and the hypoglossal and vagus nerves.
What is the significance of the suboccipital triangle?
The suboccipital triangle is an anatomic landmark involving the suboccipital muscles and allows for the localization of the vertebral artery and the suboccipital nerve. The posterior atlanto-occipital membrane forms the floor of the triangle.
What nerve Innervates the occipital triangle?
| Suboccipital nerve | |
|---|---|
| Median sagittal section through the occipital bone and first three cervical vertebrae. (Suboccipital nerve labeled at center right.) | |
| Details | |
| Innervates | Rectus capitis posterior major, rectus capitis posterior minor, obliquus capitis superior, obliquus capitis inferior |
| Identifiers |
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 is the floor of the occipital triangle?
The occipital triangle, the larger division of the posterior triangle, is bounded, in front, by the Sternocleidomastoideus; behind, by the Trapezius; below, by the Omohyoideus. Its floor is formed from above downward by the Splenius capitis, Levator scapulæ, and the Scalenus medius and posterior.
What are the borders of the suboccipital triangle?
This article will discuss the borders and contents of the suboccipital triangle and the condition occipital neuralgia. The suboccipital triangle is contained within a space bordered by muscles and ligaments deep to the nuchal region (posterior neck). The suboccipital triangle has three boundaries contained between a floor and roof.
Where is the accessory nerve located in the occipital triangle?
Occipital triangle. It is covered by the skin, the superficial and deep fasciæ, and by the Platysma below. The accessory nerve is directed obliquely across the space from the Sternocleidomastoideus, which it pierces, to the under surface of the Trapezius; below, the supraclavicular nerves and the transverse cervical vessels and the upper part…
Where are the lymph glands located in the occipital triangle?
Occipital triangle. A chain of lymph glands is also found running along the posterior border of the Sternocleidomastoideus, from the mastoid process to the root of the neck .