GROSS ANATOMY

Detailed explanation-1: -The hyoglossus muscles originate on each side from the whole length of the greater cornua and also from the body of the hyoid. They are inserted into the posterior half or more of the sides of the tongue. The hyoid bone anchors them when they contract to depress the tongue and widen the oral cavity.

Detailed explanation-2: -The hyoid bone (hyoid) is a small U-shaped (horseshoe-shaped) solitary bone, situated in the midline of the neck anteriorly at the base of the mandible and posteriorly at the fourth cervical vertebra. Its anatomical position is just superior to the thyroid cartilage.

Detailed explanation-3: -Together with its attached muscles, the hyoid bone has two important functions: it holds up the tongue, which sits above it, and it holds up the larynx, which hangs below it.

Detailed explanation-4: -They’re the omohyoid, sterno-hyoid, and thyrohyoid muscles, known collectively as the infrahyoid muscles.