Muscles Infrahyoïdiens

This lecture focuses on the study of four muscles located in the cervical region, known as the infrahyoïdiens muscles. The instructor explains the origin, insertion, and functions of each muscle, emphasizing their role as depressors of the hyoid bone. Additionally, the lecture covers the innervation of these muscles by branches of the cervical plexus. Detailed anatomical relationships with surrounding structures, such as the thyroid gland and the larynx, are also discussed, providing a comprehensive understanding of the infrahyoïdiens muscles and their significance in swallowing and speech functions.