In jaw protrusion, which arthrokinematic component of the condyles is responsible for the protrusion?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $9.99Unlock all

Prepare for the Physical Therapy Evaluation Tool (PEAT) 1 Exam. Utilize flashcards and multiple-choice questions, all featuring hints and explanations. Equip yourself for success!

Multiple Choice

In jaw protrusion, which arthrokinematic component of the condyles is responsible for the protrusion?

Explanation:
Protrusion is achieved by the anterior glide of the condyle-disk complex along the articular eminence. In this movement, the condyles translate forward (glide) rather than simply rotating in place. The lower compartment mainly provides rotation during initial opening, but it is the forward translation in the upper compartment that drives the jaw forward. Tilting or spinning of the condyle does not produce the forward displacement needed for protrusion, so the translation component best explains this motion.

Protrusion is achieved by the anterior glide of the condyle-disk complex along the articular eminence. In this movement, the condyles translate forward (glide) rather than simply rotating in place. The lower compartment mainly provides rotation during initial opening, but it is the forward translation in the upper compartment that drives the jaw forward. Tilting or spinning of the condyle does not produce the forward displacement needed for protrusion, so the translation component best explains this motion.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy