NIC Barber Written (Theory) ExamScientific ConceptsMedium
A barber is performing a facial massage and needs to apply pressure to stimulate circulation in the muscle that closes the mouth and is the strongest muscle of mastication. Which muscle is the barber targeting?
- AMasseter
- BTemporalis
- COrbicularis Oris
- DBuccinator
Show answer & explanationAnswer & explanation
Correct answer: A. Masseter
The masseter muscle is a large, powerful muscle of mastication that closes the jaw and is considered the strongest muscle in the human body relative to its size.
Why the other options are wrong
- B. Temporalis muscle also aids in closing the jaw, but the masseter is considered stronger.
- C. Orbicularis Oris is responsible for closing and puckering the lips.
- D. Buccinator muscle helps move food to the molars and flatten the cheek.
Masseter Muscle
A thick, quadrilateral muscle of mastication, responsible for elevating the mandible (closing the jaw).
- Strongest muscle of mastication.
- Closes the jaw.
- Located in the cheek/jaw area.
Memory trick: Chew with your Mighty Masseter and Tense Temporalis.