The Path Drugs Take Through the Body. Substances can enter the body through various means. Drugs can be smoked, snorted, injected, swallowed (pills, capsules, liquids), or applied through transdermal means (applied to the skin).1,2 Some substances can be eaten, such as marijuana.
a duty of care is owed by an accountant in correctly preparing a customers tax returns, to minimize the chance of an irs audit. the next example would be a student completing homework assignments.