Podcast
Questions and Answers
What type of muscle is found in the cervical portion of the esophagus?
What type of muscle is found in the cervical portion of the esophagus?
- Skeletal muscle (correct)
- Smooth muscle
- Cardiac muscle
- Striated muscle
During which phase of swallowing is food moved from the pharynx to the upper esophageal sphincter?
During which phase of swallowing is food moved from the pharynx to the upper esophageal sphincter?
- Pharyngeal Phase (correct)
- Gastric Phase
- Esophageal Phase
- Oral Phase
What action does the epiglottis perform during swallowing?
What action does the epiglottis perform during swallowing?
- Closes the vocal cords
- Relaxes the upper esophageal sphincter
- Covers the trachea (correct)
- Opens the trachea
Which part of the esophagus has smooth muscle and is innervated by the autonomic nervous system?
Which part of the esophagus has smooth muscle and is innervated by the autonomic nervous system?
How does the swallowing reflex affect breathing during the pharyngeal phase?
How does the swallowing reflex affect breathing during the pharyngeal phase?
What primarily occurs during the oral phase of deglutition?
What primarily occurs during the oral phase of deglutition?
Which part of the esophagus is primarily responsible for peristaltic movements to push food toward the stomach?
Which part of the esophagus is primarily responsible for peristaltic movements to push food toward the stomach?
What role does the vagus nerve play in the cervical portion of the esophagus?
What role does the vagus nerve play in the cervical portion of the esophagus?
During which phase of swallowing does momentary cessation of breathing occur?
During which phase of swallowing does momentary cessation of breathing occur?
Which statement about the esophagus is correct?
Which statement about the esophagus is correct?
Flashcards
Esophagus
Esophagus
A muscular tube connecting the pharynx to the stomach, 20-25 cm long.
Esophageal Parts
Esophageal Parts
Divided into cervical, thoracic, and abdominal parts; each with specific muscle types and nerve innervation.
Deglutition
Deglutition
The process of swallowing food from the pharynx to the stomach, consisting of three phases.
Oral Phase
Oral Phase
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Pharyngeal Phase
Pharyngeal Phase
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Cervical Esophagus
Cervical Esophagus
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Thoracic Esophagus
Thoracic Esophagus
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Abdominal Esophagus
Abdominal Esophagus
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Esophageal Phase
Esophageal Phase
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Upper Esophageal Sphincter
Upper Esophageal Sphincter
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