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Collateral:In anatomy, a collateral refers to a secondary or subordinate component. It can also describe a side branch, such as a blood vessel or nerve. When a coronary artery becomes blocked, collateral vessels often form to reroute blood around the obstruction.The term "collateral" is derived from the Latin "col-" meaning "with" and "latus," meaning "side," signifying something situated at the side. The prefix "col-" is a variant of "com-" used before an "l," implying "with." Therefore, "collateral" means accessory, secondary, or serving to support or reinforce.In the context of being located on the side and providing support or reinforcement, there are collateral ligaments outside the knee joint. These ligaments contribute to the knee joint's stability and strength.
CPR Certification Labs provides hands-on, American Heart Association–aligned CPR, BLS, ACLS, and PALS certification training to help providers master these life-saving skills.
Our technology delivers immediate, actionable feedback that refines your skills in real time.
Understand how to safely and effectively operate an Automated External Defibrillator (AED) for adults, children, and infants.
Learn how to perform the Heimlich maneuver and clear airway obstructions caused by choking in both adults and infants.
Gain experience working as part of a team when more than one rescuer is available during an emergency.
Receive your AHA CPR Certification E-Card on the same day you complete the class and pass the exam.
CPR Certification Labs provides professional CPR and emergency training courses based on recognized industry standards.
