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What is the oral preparatory stage of a typical swallow?
The food is masticated and mixed with saliva to form a bolus
What is the first part of the oral stage?
The tongue moves the bolus from the anterior to the posterior part of the oral cavity.
What is the second part of the oral stage of a typical swallow?
Posterior retraction of the tongue occurs.
What is the first part of the pharyngeal stage of a typical swallow?
The pharyngeal wall moves forward.
What is the second part of the pharyngeal stage?
The soft palate/velum elevates to close off the nasopharynx.
What is the third part of the pharyngeal stage?
Pharyngeal contraction/stripping wave occurs moving the bolus through the pharynx.
What is the fourth part of the pharyngeal stage?
The hyoid bone moves superiorly and anteriorly.
What is the fifth part of the pharyngeal stage?
The larynx elevates
What is the sixth part of the pharyngeal stage?
The vocal folds adduct.
What is the seventh part of the pharyngeal stage?
The epiglottis inverts to close off the laryngeal vestibule.
What happens during the pharyngo-esophageal stage?
The PES relaxes during the passage of the bolus from the pharynx to the esophagus.
What happens during the esophageal stage of a typical swallow?
The bolus moves to the stomach by the peristaltic movement of the esophagus.
What muscles are a part of the suprahyoid muscles?
Digastric, Stylohoid, Mylohoid, Geniohyoid, Genioglossus, Hyoglossus, Styloglossus
What does the digastric muscle do?
Depresses the mandible, elevates and steadies hyoid during swallowing
What does the stylohoid muscle do?
Elevates and retracts hyoid and elongates FOM
What does the mylohyoid do?
Elevate hyoid, FOM, and tongue during swallowing
