Mastication Muscles Anatomy

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Which muscle is responsible for elevating the mandible during chewing?

Masseter muscle (correct)

Lateral pterygoid muscle

Temporal muscle

Medial pterygoid muscle

Which muscle is located deep to the zygomatic arch and has three layers?

Temporal muscle

Masseter muscle (correct)

Lateral pterygoid muscle

Medial pterygoid muscle

Which muscle has its origin on the zygomatic arch and inserts into the coronoid process and the anterior border of the ramus of the mandible?

Medial pterygoid muscle

Masseter muscle (correct)

Lateral pterygoid muscle

Temporal muscle

Which muscle is responsible for lateral excursion of the mandible?

Lateral pterygoid muscle Signup and view all the answers

Which muscle is responsible for medial excursion of the mandible?

Medial pterygoid muscle Signup and view all the answers

Which muscle plays a role in retracting the mandible?

Temporal muscle Signup and view all the answers

The temporal muscle has its origin from which of the following structures?

inferior temporal line Signup and view all the answers

Which nerve innervates the lateral pterygoid muscle?

Mandibular nerve Signup and view all the answers

What is the function of the medial pterygoid muscle?

Protrude the mandible Signup and view all the answers

Which artery is located between the superficial and deep layers of the temporalis fascia?

Superficial temporal artery Signup and view all the answers

The lateral pterygoid muscle is responsible for which action?

Protruding the mandible Signup and view all the answers

Which structure does the medial pterygoid muscle have its origin from?

Lateral pterygoid plate Signup and view all the answers

Innervation of the temporal muscle is provided by which nerve?

Mandibular nerve Signup and view all the answers

Which nerve provides innervation to the lateral pterygoid muscle?

Mandibular nerve Signup and view all the answers

Where does the temporal muscle insert?

Anterior border of mandibular ramus Signup and view all the answers

What forms the roof of the oral cavity?

Hard and soft palates Signup and view all the answers

Where is the vestibule of the oral cavity located?

Externally by gums and teeth Signup and view all the answers

What is the function of the orbicularis oris muscle?

Surrounding the oral orifice Signup and view all the answers

What gives the reddish color to the vermilion border of the lips?

Blood vessels Signup and view all the answers

What separates the vestibule from the oral cavity proper when the teeth are apposed?

Hard and soft palates Signup and view all the answers

What forms the floor of the oral cavity?

Tongue Signup and view all the answers

Which structure connects each lip to the gum?

Median labial frenulum Signup and view all the answers

Where are the largest buccal mucous glands located?

External to buccinator, around parotid duct Signup and view all the answers

What is the composition of gums (gingivae)?

Orthokeratinized stratified squamous epithelium Signup and view all the answers

What is the function of the hard palate?

Formed by palatine processes of maxillae and horizontal plates of palatine bones Signup and view all the answers

Mastication Muscles Anatomy

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Questions and Answers

Which muscle is responsible for elevating the mandible during chewing?

Which muscle is located deep to the zygomatic arch and has three layers?

Which muscle has its origin on the zygomatic arch and inserts into the coronoid process and the anterior border of the ramus of the mandible?

Which muscle is responsible for lateral excursion of the mandible?

Which muscle is responsible for medial excursion of the mandible?

Which muscle plays a role in retracting the mandible?

The temporal muscle has its origin from which of the following structures?

Which nerve innervates the lateral pterygoid muscle?

What is the function of the medial pterygoid muscle?

Which artery is located between the superficial and deep layers of the temporalis fascia?

The lateral pterygoid muscle is responsible for which action?

Which structure does the medial pterygoid muscle have its origin from?

Innervation of the temporal muscle is provided by which nerve?

Which nerve provides innervation to the lateral pterygoid muscle?

Where does the temporal muscle insert?

What forms the roof of the oral cavity?

Where is the vestibule of the oral cavity located?

What is the function of the orbicularis oris muscle?

What gives the reddish color to the vermilion border of the lips?

What separates the vestibule from the oral cavity proper when the teeth are apposed?

What forms the floor of the oral cavity?

Which structure connects each lip to the gum?

Where are the largest buccal mucous glands located?

What is the composition of gums (gingivae)?

What is the function of the hard palate?

What forms a narrow, low ridge in the hard palate?

Which artery supplies the lips with blood?

Where do the submandibular lymph nodes drain from the lips?

What provides sensory innervation to the lower lip?

Which nerve provides sensory innervation to the upper lip?

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