Between the ribs is intercostal space which contains blood vessels, muscles and intercostal nerves. These emerge between the vertebrae. When false movements, efforts, shock or coughing important muscles can be stretched, crumpled or torn.
For substances that are existing, the Inventory can be used to determine if there are restrictions on manufacture or use under the TSCA. There are approximately 80,000 chemical substances (as defined in Section 3 of the TSCA) on the Inventory at this time.
The chemicals on the consolidated list are ordered both by the Chemical Abstracts Service (CAS) registry number and alphabetically. Categories of chemicals which generally do not have CAS registry numbers, but which are cited under CERCLA, have Not Applicable (N.A.) listed in place of the CAS number.