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The hyoid bone (lingual bone or tongue-bone) (/ ˈ h aɪ ɔɪ d / [2] [3]) is a horseshoe-shaped bone situated in the anterior midline of the neck between the chin and the thyroid cartilage. At rest, it lies between the base of the mandible and the third cervical vertebra .
Medial to it are the hyoid bone, the wall of the pharynx, the superior laryngeal nerve, and a portion of the parotid gland. Posterior to it, near its origin, is the superior laryngeal nerve ; and higher up, it is separated from the internal carotid by the styloglossus and stylopharyngeus muscles , the glossopharyngeal nerve , the pharyngeal ...
The infrahyoid branch (or hyoid artery): a small artery that runs along the lower border of the hyoid bone beneath the thyrohyoid muscle. This artery connects with the infrahyoid branch of the opposite side. The infrahyoid branch is a derivative of the second aortic arch.
Below the neck, holding the tooth into the bone, is the root of the tooth. The inner portions of the tooth consist of the dentin, a bonelike tissue, and the pulp. The pulp is a soft tissue area containing the nerve and blood vessels to nourish and protect the tooth, located within the pulp cavity.
The suprahyoid branch of the lingual artery runs along the upper border of the hyoid bone, supplying oxygenated blood to the muscles attached to it and joining (anastomosing) with its fellow of the opposite side. The dorsal lingual branches of lingual artery consist usually of two or three small branches which arise beneath the hyoglossus.
When present, this lobe often stretches up to the hyoid bone from the thyroid isthmus and may be one to several divided lobes. [4] The presence of this lobe ranges in reported studies from 18.3% [11] to 44.6%. [12] It was shown to more often arise from the left side and occasionally separated. [11]
Hyoid bone. Anterior surface. Enlarged. Muscles of the neck. Lateral view. The internal carotid and vertebral arteries. Right side. Distribution of the maxillary and ...
A scanner used to measure bone density using dual energy X-ray absorptiometry. Bone density, or bone mineral density, is the amount of bone mineral in bone tissue.The concept is of mass of mineral per volume of bone (relating to density in the physics sense), although clinically it is measured by proxy according to optical density per square centimetre of bone surface upon imaging. [1]