Triangles of the Neck II

A major artery in the neck that supplies blood to the face and neck.

This nerve is a branch of the vagus nerve and controls muscles in the larynx, specifically the cricothyroid muscle.

A vein in the neck that drains blood from the brain and skull.

A network of nerve fibers in the neck that control muscles in the neck and shoulder.

A major artery in the neck that branches into internal and external carotid arteries and supplies blood to the brain, face, and neck.

A branch of the hypoglossal nerve (CN XII) that descends along the neck, contributing to the innervation of infrahyoid muscles.

The 12th cranial nerve, responsible for innervating the muscles of the tongue, allowing for movement and speech.

A cluster of lymph nodes located deep in the neck, closely associated with the internal jugular vein.

A subset of the deep cervical lymph nodes located above the posterior belly of the digastric muscle, filtering lymph from the head and neck regions.

Another group of deep cervical lymph nodes found beneath the posterior belly of the digastric muscle, also contributing to lymphatic drainage in the neck area.

The common carotid artery divides (bifurcates) into the internal carotid artery, which supplies the brain, and the external carotid artery, which supplies the face and neck.

The external carotid artery supplies blood to structures outside the skull, such as the face, neck, and scalp. Its major branches include the ascending pharyngeal artery, superior thyroid artery, lingual artery, occipital artery, superficial temporal artery, and maxillary artery.

The carotid sheath is a fibrous covering that encloses the common carotid artery, internal jugular vein, and vagus nerve. It helps protect and organize these structures.

The spinal accessory nerve (CN XI) is a cranial nerve involved in controlling neck and shoulder movements.

The hypoglossal nerve (CN XII) controls tongue movements and sensation.

The carotid tubercle is a bony bump on the transverse process of the sixth cervical vertebra (C6). It serves as a landmark for locating the common carotid artery during physical examination, compression techniques, or surgery.

A triangular region of the neck located beneath the mandible, bounded by the posterior belly of the digastric muscle, stylohoid muscle, and anterior belly of the digastric muscle. It contains structures like the submandibular gland, facial artery, and facial vein.

The floor of the digastric triangle is formed by these muscles: Mylohyoid, Hyoglossus, and Middle Constrictor.

The anterior portion of the digastric triangle contains structures like the submandibular gland, facial artery, facial vein, and mylohyoid vessels and nerve.

The posterior portion of the digastric triangle contains several important structures, including the parotid gland, external carotid artery, carotid sheath with its contents (internal carotid artery, vagus nerve, and internal jugular vein), glossopharyngeal nerve, and three muscles attached to the styloid process.

A triangular region of the neck located below the hyoid bone, bounded by the anterior midline of the neck, the superior belly of the omohyoid muscle, and the anterior border of the sternocleidomastoid muscle. It contains muscles involved in controlling the position of the hyoid bone.

The submental triangle is a small triangular region located in the anterior neck, below the chin.

The submental triangle's borders include the hyoid bone as its base, the anterior belly of the digastric muscle as its sides, and the symphysis menti as its apex.

The submental triangle contains submental lymph nodes, which drain lymph from the central lower lip, floor of the mouth, and tip of the tongue. It also contains the anterior jugular vein.

The sternocleidomastoid muscle is a large muscle that runs from the sternum and clavicle to the mastoid process. It helps rotate and flex the head.

The carotid triangle is a triangular region on the neck, located between the posterior belly of the digastric muscle, superior belly of omohyoid, and the sternocleidomastoid muscle.

The carotid triangle includes important structures such as the common carotid artery and its branches, internal jugular vein, vagus nerve, ansa cervicalis, hypoglossal nerve, and deep cervical lymph nodes.

The common carotid artery, one of the major arteries in the neck, supplies blood to the head and neck. It arises from the arch of the aorta on the left and the brachiocephalic trunk on the right.

The external carotid artery, one of the terminal branches of the common carotid artery, supplies blood to the face and neck. It divides into the superficial temporal and maxillary arteries.

A sheath of connective tissue surrounding the common and internal carotid arteries, internal jugular vein, and vagus nerve in the neck.

A triangular space in the neck bounded by the lower border of the mandible, the posterior belly of the digastric muscle, and the anterior belly of the digastric muscle.

It's a nerve loop formed by the ventral rami of the C1, C2, and C3 nerves, located anterior to the carotid sheath.

It's a major vein in the neck, a continuation of the sigmoid sinus, that descends along with the carotid arteries and vagus nerve within the carotid sheath.

A branch of the vagus nerve that supplies the cricothyroid muscle, a muscle that helps with voice production.