Mastication and Digestion Process

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Which muscles work together to depress the mandible?

Palatoglossus and styloglossus

Mentalis and zygomaticus

Buccinator and orbicularis oris

Infrahyoid and lateral pterygoid (correct)

What is the primary function of the saliva in the oral cavity?

To break down nucleic acids

To break down proteins

To moisten and break down carbohydrates (correct)

To break down fats

What is the role of the tongue in the oral processing of food?

To swallow food

To move food towards the molars (correct)

To mix food with saliva

To move food away from the molars

Which muscle contraction prevents food from entering the airway?

Bilateral contraction of the palatoglossus muscles Signup and view all the answers

What is the term for the process of gathering food into a small, rounded mass for swallowing?

Bolus formation Signup and view all the answers

What is the role of the lips in the oral processing of food?

To reduce the likelihood of food falling out of the mouth Signup and view all the answers

What is the primary function of the epiglottis during swallowing?

To deflect any food and drink into the piriform fossa Signup and view all the answers

Which muscles contract to close the nasopharynx from the oropharynx during swallowing?

Superior constrictor Signup and view all the answers

What is the primary role of the hyoid bone during swallowing?

To move the larynx forward Signup and view all the answers

What is the result of the contraction of the middle and inferior constrictors during swallowing?

The bolus is pushed towards the oesophagus Signup and view all the answers

Which muscles relax to open the oropharyngeal isthmus during swallowing?

Palatoglossus muscles Signup and view all the answers

What is the duration of the swallowing process from the oropharynx to the stomach?

2 seconds Signup and view all the answers

Which joint allows for the movement of the lower jaw during mastication?

Temporomandibular joint Signup and view all the answers

Which muscles are responsible for placing or keeping the food between the molars during mastication?

Muscles of the tongue Signup and view all the answers

Which branch of the trigeminal nerve is responsible for innervation of the muscles of mastication?

Mandibular nerve Signup and view all the answers

What is the main function of the infratemporal fossa in relation to the muscles of mastication?

It allows for the passage of the muscles of mastication Signup and view all the answers

Which of the following muscles of mastication is not a major muscle?

Digastric Signup and view all the answers

Which artery supplies the muscles of mastication?

Maxillary artery Signup and view all the answers

What happens to the hyoid bone and larynx after the bolus has passed through?

They return to their usual position Signup and view all the answers

During the pharyngeal phase of swallowing, what prevents food or drink from entering the glottis?

Both intrinsic and extrinsic muscles of the larynx Signup and view all the answers

What happens to the upper oesophageal sphincter during the upper oesophageal phase of swallowing?

It constricts Signup and view all the answers

During the oesophageal phase of swallowing, what drives the bolus down the oesophagus?

Peristalsis Signup and view all the answers

What is the last phase of swallowing?

Oesophageal phase Signup and view all the answers

Which muscle contraction narrows the oropharyngeal isthmus during bolus formation?

Palatoglossus Signup and view all the answers

What happens to the soft palate during the buccal phase of swallowing?

It raises Signup and view all the answers

What is the primary function of the superior constrictor during swallowing?

To close the nasopharynx from the oropharynx Signup and view all the answers

What is the primary action of the geniohyoid and anterior belly of digastric muscles during swallowing?

To raise the larynx forward Signup and view all the answers

What is the primary function of the epiglottis during swallowing?

To deflect food and drink into the piriform fossa Signup and view all the answers

What is the duration of the swallowing process from the oropharynx to the stomach?

2 seconds Signup and view all the answers

What is the primary function of the aryepiglottic and transverse arytenoid muscles during swallowing?

To reduce the size of the laryngeal inlet Signup and view all the answers

What is the primary function of the articular disc in the temporomandibular joint?

To facilitate gliding and hinge movements Signup and view all the answers

Which of the following nerves is responsible for innervation of the muscles of mastication?

Mandibular nerve Signup and view all the answers

What is the main function of the infratemporal fossa in relation to the muscles of mastication?

To provide a passage for the temporalis and pterygoid muscles Signup and view all the answers

What is the name of the plexus of veins that is equivalent to the maxillary artery?

Pterygoid plexus Signup and view all the answers

Which of the following muscles of mastication is responsible for elevating the mandible?

Masseter Signup and view all the answers

What is the primary function of the maxillary artery in relation to the muscles of mastication?

To supply blood to the muscles of mastication Signup and view all the answers

Which of the following is NOT a type of movement possible at the temporomandibular joint?

Rotation of the atlas Signup and view all the answers

What is the name of the nerve responsible for innervation of both the musculature and mucosa of the oral cavity or cheeks?

Mandibular nerve Signup and view all the answers

Which of the following is NOT a major masticatory muscle?

Digastric Signup and view all the answers

What is the name of the space found posterior to the maxilla and deep to both the zygomatic arch and ramus of the mandible?

Infratemporal fossa Signup and view all the answers

Mastication and Digestion Process

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Questions and Answers

Which muscles work together to depress the mandible?

What is the primary function of the saliva in the oral cavity?

What is the role of the tongue in the oral processing of food?

Which muscle contraction prevents food from entering the airway?

What is the term for the process of gathering food into a small, rounded mass for swallowing?

What is the role of the lips in the oral processing of food?

What is the primary function of the epiglottis during swallowing?

Which muscles contract to close the nasopharynx from the oropharynx during swallowing?

What is the primary role of the hyoid bone during swallowing?

What is the result of the contraction of the middle and inferior constrictors during swallowing?

Which muscles relax to open the oropharyngeal isthmus during swallowing?

What is the duration of the swallowing process from the oropharynx to the stomach?

Which joint allows for the movement of the lower jaw during mastication?

Which muscles are responsible for placing or keeping the food between the molars during mastication?

Which branch of the trigeminal nerve is responsible for innervation of the muscles of mastication?

What is the main function of the infratemporal fossa in relation to the muscles of mastication?

Which of the following muscles of mastication is not a major muscle?

Which artery supplies the muscles of mastication?

What happens to the hyoid bone and larynx after the bolus has passed through?

During the pharyngeal phase of swallowing, what prevents food or drink from entering the glottis?

What happens to the upper oesophageal sphincter during the upper oesophageal phase of swallowing?

During the oesophageal phase of swallowing, what drives the bolus down the oesophagus?

What is the last phase of swallowing?

Which muscle contraction narrows the oropharyngeal isthmus during bolus formation?

What happens to the soft palate during the buccal phase of swallowing?

What is the primary function of the superior constrictor during swallowing?

What is the primary action of the geniohyoid and anterior belly of digastric muscles during swallowing?

What is the primary function of the epiglottis during swallowing?

What is the duration of the swallowing process from the oropharynx to the stomach?

What is the primary function of the aryepiglottic and transverse arytenoid muscles during swallowing?

What is the primary function of the articular disc in the temporomandibular joint?

Which of the following nerves is responsible for innervation of the muscles of mastication?

What is the main function of the infratemporal fossa in relation to the muscles of mastication?

What is the name of the plexus of veins that is equivalent to the maxillary artery?

Which of the following muscles of mastication is responsible for elevating the mandible?

What is the primary function of the maxillary artery in relation to the muscles of mastication?

Which of the following is NOT a type of movement possible at the temporomandibular joint?

What is the name of the nerve responsible for innervation of both the musculature and mucosa of the oral cavity or cheeks?

Which of the following is NOT a major masticatory muscle?

What is the name of the space found posterior to the maxilla and deep to both the zygomatic arch and ramus of the mandible?

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