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.
Many of these iliocostalis muscles-for example, the iliocostalis thoracis-originate on the ilium of the pelvic girdle and insert on the ribs, or the costal bones (thus, iliocostalis). As with the spinalis and longissimus muscles, the iliocostalis muscles help to extend the neck and the vertebral column.Additionally, these muscles can move the ribs, as they're attached to the ribs.et's take a look at these muscles. If we peel away the trapezius and the latissimus dorsi muscle that are on the superficial part of the back, we can see the muscles responsible for our posture. The erector spinae is a group of muscles that work together to extend the vertebral column and thus maintain good posture.