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.
Extrinsic muscles. Definition. noun. A group of muscles lying superficially on a structure, in contrast to intrinsic muscles, which are located deeply. Supplement.For instance, the extrinsic muscles of the tongue include genioglossus muscle, hyoglossus muscle, styloglossus muscle, and palatoglossus muscle.Since they are extrinsic muscles, they are located on the surface of the tongue, and attach the tongue to other structures.xtrinsic muscles. Definition. noun. A group of muscles lying superficially on a structure, in contrast to intrinsic muscles, which are located deeply. Supplement.