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Questions and Answers
Which type of muscle does the upper esophageal sphincter consist of?
Which type of muscle does the upper esophageal sphincter consist of?
- Cardiac muscle
- Visceral muscle
- Smooth muscle
- Striated muscle (correct)
What is the primary function of the lower esophageal sphincter?
What is the primary function of the lower esophageal sphincter?
- Regulates breathing
- Regulates movement of food from the esophagus to the stomach (correct)
- Regulates movement of food from the pharynx to the esophagus
- Regulates blood flow
Which muscle is responsible for producing the upper esophageal sphincter?
Which muscle is responsible for producing the upper esophageal sphincter?
- Biceps brachii muscle
- Sternocleidomastoid muscle
- Gluteus maximus muscle
- Cricopharyngeus muscle (correct)
Where is the lower esophageal sphincter located?
Where is the lower esophageal sphincter located?
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What does the very distal portion of the oesophagus have as an outer covering?
What does the very distal portion of the oesophagus have as an outer covering?
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Which layer of connective tissue is identified as the adventitia in the oesophagus?
Which layer of connective tissue is identified as the adventitia in the oesophagus?
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In which part of the esophagus do we find gastric mucosa?
In which part of the esophagus do we find gastric mucosa?
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