ana - oral cavity
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Questions and Answers

Which of the following is NOT a function of the oral cavity and teeth?

  • Immune protection (correct)
  • Ingestion of food and liquid
  • Digestion initiation
  • Taste perception

Which of the following is responsible for the mechanical digestion of food in the oral cavity?

  • Hard palate
  • Teeth (correct)
  • Salivary glands
  • Tongue

Which of the following is NOT a component of saliva secreted by the oral cavity and salivary glands?

  • Water
  • Enzymes (correct)
  • Mucus
  • Ions

Which of the following separates the oral cavity from the nasal cavity?

<p>Palate (B)</p> Signup and view all the answers

How many permanent teeth are there in total?

<p>32 (D)</p> Signup and view all the answers

Which division of the trigeminal nerve innervates the mandibular teeth?

<p>CN V3 (D)</p> Signup and view all the answers

Which muscles are involved in the chewing (mastication) process?

<p>Temporalis and Masseter (B)</p> Signup and view all the answers

Which muscle is responsible for protruding and abducting the mandible to the opposite side of elevation?

<p>Lateral pterygoid (B)</p> Signup and view all the answers

Which muscle is responsible for elevating, protruding, and abducting the mandible to the opposite side?

<p>Medial pterygoid (A)</p> Signup and view all the answers

Which muscle is responsible for protruding and depressing the tongue?

<p>Genioglossus (D)</p> Signup and view all the answers

Which muscle is responsible for retracting and elevating the tongue?

<p>Styloglossus (D)</p> Signup and view all the answers

Which muscles elevate and tense the soft palate during swallowing to prevent food from moving into the nasopharynx?

<p>Levator veli palatini (LVP) (B)</p> Signup and view all the answers

Which muscles depress the palate and narrow the opening to the oropharynx?

<p>Palatopharyngeus (PP) (C)</p> Signup and view all the answers

Which muscles are responsible for chewing and breathing at the same time?

<p>Palatoglossus (PG) (C)</p> Signup and view all the answers

Which nerve innervates all the muscles of the pharynx except the tensor veli palatini?

<p>CN X (B)</p> Signup and view all the answers

What are the main components of saliva secreted by the oral cavity and salivary glands?

<p>Mucus, water, ions, small molecules, enzymes, etc.</p> Signup and view all the answers

What is the function of the oral cavity and teeth?

<p>Ingestion of food and liquid, taste, mixing of food and saliva, digestion initiation, immune protection, speech, non-verbal communication, breathing, etc.</p> Signup and view all the answers

What is the sensory innervation of the teeth?

<p>Taste buds on the tongue</p> Signup and view all the answers

What are the muscles responsible for elevating and tensing the soft palate during swallowing?

<p>levator veli palatini (LVP) and tensor veli palatini (TVP)</p> Signup and view all the answers

What is the function of the palatoglossus and palatopharyngeus muscles?

<p>depressing the palate and narrowing the opening to the oropharynx</p> Signup and view all the answers

Which nerve innervates all the muscles of the pharynx except the tensor veli palatini?

<p>vagus nerve (CN X)</p> Signup and view all the answers

How many parts does the pharynx have?

<p>3</p> Signup and view all the answers

What are the actions of the lateral pterygoid muscle at the temporomandibular joint?

<p>Protrusion and abduction to the opposite side of elevation.</p> Signup and view all the answers

What are the actions of the medial pterygoid muscle at the temporomandibular joint?

<p>Elevation, protrusion, and abduction to the opposite side.</p> Signup and view all the answers

What are the actions of the genioglossus muscle?

<p>Protrusion and depression of the tongue.</p> Signup and view all the answers

What is the motor innervation of the tongue?

<p>CN XII (hypoglossal nerve), except for the palatoglossus muscle which is innervated by CN X (vagus nerve).</p> Signup and view all the answers

What is the function of the oral cavity?

<p>The oral cavity functions in the mechanical digestion of food and the initial breakdown of carbohydrates through the action of salivary amylase.</p> Signup and view all the answers

What separates the oral cavity from the nasal cavity?

<p>The hard and soft palate separate the oral cavity from the nasal cavity.</p> Signup and view all the answers

How many permanent teeth are there in total?

<p>There are a total of 32 permanent teeth, with 8 teeth in each quadrant of the maxilla and mandible.</p> Signup and view all the answers

Which muscles are involved in the movement of the temporomandibular joint (TMJ)?

<p>The muscles of mastication, including the temporalis, masseter, medial pterygoid, and lateral pterygoid, are involved in the movement of the temporomandibular joint (TMJ).</p> Signup and view all the answers

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