You can elect to use a 52-53-week tax year if you keep your books and records and report your income and expenses on that basis. If you make this election, your 52-53-week tax year must always end on the same day of the week.
Forced Inhalation. Involved in the mechanics of breathing; The muscles involved in this type of breathing are the diaphragm, the external intercostal muscles, and the accessory respiratory muscles (activated when respiration increases significantly).
Sternocleidomastoid muscles are a set of muscles in the neck which assist in breathing. The intercostal muscles, which surround the ribs, are breathing muscles. Diaphragmatic breathing and other controlled breath exercises are often used in yoga and movement exercises. Polio patients whose breathing muscles had become paralyzed often needed to be placed in an iron lung to survive.