Hyoid bone osteology - Gross anatomy , Attachments , Movements скачать в хорошем качестве

Hyoid bone osteology - Gross anatomy , Attachments , Movements

📌 𝐅𝐨𝐥𝐥𝐨𝐰 𝐨𝐧 𝐈𝐧𝐬𝐭𝐚𝐠𝐫𝐚𝐦:-   / drgbhanuprakash   📌𝗝𝗼𝗶𝗻 𝗢𝘂𝗿 𝗧𝗲𝗹𝗲𝗴𝗿𝗮𝗺 𝗖𝗵𝗮𝗻𝗻𝗲𝗹 𝗛𝗲𝗿𝗲:- https://t.me/bhanuprakashdr 📌𝗦𝘂𝗯𝘀𝗰𝗿𝗶𝗯𝗲 𝗧𝗼 𝗠𝘆 𝗠𝗮𝗶𝗹𝗶𝗻𝗴 𝗟𝗶𝘀𝘁:- https://linktr.ee/DrGBhanuprakash Hyoid Bone Osteology The hyoid bone is a U-shaped structure located in the anterior neck, situated between the mandible and the larynx. Unlike other bones, it does not articulate directly with any other bone but is suspended by muscles and ligaments, providing support for the tongue and serving as an attachment site for various muscles of the neck and throat. The hyoid bone consists of a body, two greater horns (cornua), and two lesser horns (cornua). Gross Anatomy Body: The central part of the hyoid bone, which serves as the site of attachment for several muscles, including the mylohyoid, geniohyoid, and sternohyoid. Greater Horns (Cornua): These are the long extensions that project posteriorly from the body and provide additional surface area for muscle attachment, particularly for the hyoglossus and thyrohyoid muscles. Lesser Horns (Cornua): Smaller projections located at the junction of the body and greater horns, which serve as attachment points for the stylohyoid ligament. Attachments The hyoid bone is a key anchor for muscles involved in swallowing, speech, and breathing. Suprahyoid Muscles: Attach to the superior aspect of the hyoid and include the mylohyoid, geniohyoid, stylohyoid, and digastric muscles. These muscles elevate the hyoid bone during swallowing and speaking. Infrahyoid Muscles: Attach to the inferior aspect and include the sternohyoid, thyrohyoid, and omohyoid muscles. These muscles depress the hyoid bone and assist in returning it to its resting position after swallowing. Movements The hyoid bone is mobile and moves during various functions, such as swallowing, speech, and respiration. Elevation: During swallowing, the suprahyoid muscles pull the hyoid bone upwards, which also elevates the larynx, closing off the airway to prevent aspiration. Depression: After swallowing, the infrahyoid muscles depress the hyoid bone, returning it to its normal position. These movements help in the coordinated action of swallowing and play a role in modulating voice production. Clinical Significance Fracture of the Hyoid Bone: This is rare but can occur due to trauma, such as strangulation or direct blows to the neck. A fractured hyoid can lead to airway obstruction and difficulty in swallowing or speaking. Hyoid Syndrome: Pain and discomfort related to abnormal hyoid bone movements or ligament strain, often due to overuse or trauma. Surgical Landmark: The hyoid bone is an important landmark in surgeries of the neck, especially in procedures involving the larynx, trachea, and thyroid gland. It also serves as a guide for airway management and tracheostomies. Role in Forensics: In cases of strangulation, hyoid bone fractures can be a key indicator of homicidal strangulation during forensic examinations. The hyoid bone plays a critical role in many essential functions, including speech, swallowing, and airway management, making it a vital anatomical structure in both clinical practice and emergency medicine. #hyoidbone #hyoidboneanatomy #hyoidboneanimation #hyoidboneosteology #drgbhanuprakash #anatomy #anatomyanimations #anatomyusmle #anatomymbbs #anatomyvideos #anatomylectures