$25 per $1,000. On or before 30 days from issuance of tax bill. Boston sightseeing tour. Ticket purchase or any water-or land-based sightseeing tourist venue or entertainment cruise or trolley tour originating or located in Massachusetts and conducted partly or entirely in Boston. 5%. Quarterly, on or before the 20th day following the close of the tax period. Parking facilities surcharge in Boston, Springfield and/or Worcester. Parking facilities built in conjunction with or as part of a project authorized by the Convention Center Financing Act in Boston, Springfield or Worcester.
This increases thoracic volume in a vertical direction. Inspiration is aided by contraction of the parasternal and external intercostals, which raise the ribs when they contract and increase thoracic volume laterally. Other thoracic muscles become involved in forced (deep) inspiration.
The two lungs are the primary organs of the respiratory system. Other components of the respiratory system conduct air to the lungs, such as the trachea (windpipe) which branches into smaller structures called bronchi. The process of breathing (respiration) is divided into two distinct phases, inspiration (inhalation) and expiration (exhalation). During inspiration, the diaphragm contracts and pulls downward while the muscles between the ribs contract and pull upward.