<prompt> Local anesthetics are typically injected or applied very close to their intended site of action. From which of the following routes absorption of local anaesthetic is maximum?IntercostalEpiduralBrachialCaudal  <response>: The rate of systemic absorption is propoionate to the vascularity of the site of injection: intravenous tracheal intercostal caudal paracervical epidural brachial plexus sciatic subcutaneous. Ref: Morgan, Jr. G.E., Mikhail M.S., Murray M.J. 2006. Chapter 14. Local Anesthetics. In G.E. Morgan, Jr., M.S. Mikhail, M.J. Murray Eds, Clinical Anesthesiology, 4e. 