Floor Of Carotid Triangle

Middle constrictor and inferior constrictor muscles.

Floor of carotid triangle.

This triangle is situated between the ophthalmic and maxillary divisions of the trigeminal nerve and the bone of the middle fossa between the foramen rotundum and superior orbital fissure figs. Hyoid bone thyro hyoid m. Posterior belly of digastric m. Structure superficial to mylohyoid in anterior digastric triangle is mylohyoid artery nerve.

Similar to the muscular triangle the carotid triangle has the omohyoid and sternocleidomastoid muscles as parts of its borders. Posteriorly by the anterior. What is the clinical significance of enlargement of the jugulo digastric and jugulo omohyoid. Medially the floor of the triangle is formed by parts of the thyrohyoid muscle the hyoglossus muscle and the middle and inferior pharyngeal constrictor muscles.

Superior belly of omohyoid m. Floor of carotid triangle dr. The carotid triangle also contains the carotid sinus a dilated portion of the common carotid and internal carotid arteries. It is so called because it contains all the 3 carotid arteries viz.

Constrictores pharyngis medius and inferior. Contents of carotid triangle dr. However it is the posterior margin of the superior omohyoid muscle that limits the triangle anteriorly and the anterior margin of the sternocleidomastoid posteriorly. Carotid triangle is one of the subdivisions of anterior triangle of neck.

List the muscles that make the floor of the carotid triangle. Name the structures forming the boundaries of carotid triangle. This space is used to expose the superior orbital vein and the sixth cranial nerve and to access carotid cavernous fistulae. Posterior belly of digastric and stylohyoid.

It contains the submental lymph nodes which filter lymph draining from the floor of the mouth and parts of the tongue. Inferiorly hyoid bone. Floor of digastric triangle is formed by mylohyoid anteriorly hyoglossus posteriorly infrahyoid ribbon muscles are the chief contents of muscular triangle. Hyoglossus and thyrohyoid muscles posterior part.

Carotid triangle is a space at the anterior portion of the neck. Hypoglossal nerve is a content of both digastric carotid triangles. The hyoid bone can be seen in the most anterior angle of the carotid triangle with two of the three sides either originating or inserting upon it. Superior belly of omohyoid.

It is bound by the sternocleidomastoid muscle by the superior belly of the omohyoid muscle and by the posterior belly of the digastric muscle with the stylohyoideus. Content edit edit source. Describe the locations of the superficial and deep cervical lymph nodes.