INBDE (Integrated National Board Dental Examination) Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Ace your INBDE with our comprehensive practice exam. Featuring detailed explanations, interactive flashcards, and a wide array of multiple-choice questions designed to mirror the real test. Get ready to surpass your expectations!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

Which muscles arise from Arch 1?

Muscles of Mastication, Anterior Digastric, Tensors
Muscles of Facial Expression, Posterior Digastric, Stylohyoid
Pharyngeal Musculature
Intrinsic Tongue Muscles

The correct answer is: Muscles of Mastication, Anterior Digastric, Tensors

Arch 1 is also known as the mandibular arch, and it is the first of the six branchial arches that develop during embryonic development. The muscles that originate from Arch 1 are primarily responsible for movements involved in chewing and biting, known as muscles of mastication. This includes muscles like the masseter, temporalis, and medial pterygoid. Option B is incorrect because the muscles of facial expression, such as the orbicularis oris and buccinator muscles, originate from Arch 2. Option C is incorrect because the pharyngeal musculature originates from Arch 3 and 4. Option D is incorrect because the intrinsic tongue muscles, which are responsible for fine movements of the tongue, originate from Arch 3 and 4.