1 Tire width is the width of the tire measured in mm from sidewall to sidewall. This tire width is 225 mm.  Aspect ratio is the ratio of the height of the tire's cross-section to its width. On our example, 60 means that the height is equal to 60% of the tire's width.
The infrahyoid muscles or strap muscles are a group of four paired muscles in the anterior neck below the hyoid bone. They are responsible for depressing the hyoid during swallowing. Each muscle is supplied by different nerves from the ansa cervicalis.
Back Upper-Neck (Cervical) Trapezius Spasm Treatment. Spasms of the trapezius muscle and other supporting muscles. Trapezius is a large superficial muscle that extends from the occipital bone to the lower thoracic vertebrae and laterally to the spine of the scapula.Its functions are to move the scapulae and support the arm.Trapezius strain can result from. 1  exercise.2  stress.pasms of the trapezius muscle and other supporting muscles. Trapezius is a large superficial muscle that extends from the occipital bone to the lower thoracic vertebrae and laterally to the spine of the scapula. Its functions are to move the scapulae and support the arm. Trapezius strain can result from. 1  exercise. 2  stress.