Anatomy of the Oesophagus
20 Questions
3 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the approximate length of the oesophagus?

  • 45cm
  • 15cm
  • 25cm (correct)
  • 35cm
  • At what level does the oesophagus originate?

  • C6 (correct)
  • C7
  • C5
  • C4
  • Which opening does the oesophagus enter the abdomen through?

  • Gastric inlet
  • Diaphragmatic opening
  • Pharyngeal orifice
  • Esophageal hiatus (correct)
  • What causes difficulty in swallowing (dysphagia) related to the oesophagus?

    <p>Hardening of muscular layers</p> Signup and view all the answers

    Where does the oesophagus terminate in relation to the stomach?

    <p>Cardiac orifice at T11</p> Signup and view all the answers

    What is the function of the upper oesophageal sphincter?

    <p>Preventing the entrance of air into the oesophagus</p> Signup and view all the answers

    Where is the lower oesophageal sphincter located?

    <p>At the gastro-oesophageal junction</p> Signup and view all the answers

    Which arteries supply blood to the thoracic part of the oesophagus?

    <p>Branches of the thoracic aorta and inferior thyroid artery</p> Signup and view all the answers

    What characterizes the innervation of the upper oesophageal sphincter and upper striated muscle?

    <p>Supplied by fibres originating from the nucleus ambiguus</p> Signup and view all the answers

    What maintains the lower oesophageal sphincter as a physiological (or functional) sphincter?

    <p>Presence of four factors</p> Signup and view all the answers

    Which anatomical level marks the origin of the oesophagus?

    <p>C6</p> Signup and view all the answers

    What causes difficulty in swallowing (dysphagia) related to the oesophagus?

    <p>Hardening of the muscular layers interfering with peristalsis</p> Signup and view all the answers

    Where is the abdominal portion of the oesophagus located?

    <p>T10</p> Signup and view all the answers

    What characterizes the innervation of the upper oesophageal sphincter and upper striated muscle?

    <p>Somatic motor fibers</p> Signup and view all the answers

    What maintains the lower oesophageal sphincter as a physiological (or functional) sphincter?

    <p>Nervous control</p> Signup and view all the answers

    What maintains the lower oesophageal sphincter as a physiological (or functional) sphincter?

    <p>Relaxation during oesophageal peristalsis</p> Signup and view all the answers

    What characterizes the innervation of the upper oesophageal sphincter and upper striated muscle?

    <p>Fibres originating from the nucleus ambiguus</p> Signup and view all the answers

    What is the approximate length of the oesophagus?

    <p>20-30 cm</p> Signup and view all the answers

    What causes difficulty in swallowing (dysphagia) related to the oesophagus?

    <p>Anatomical relations leading to physiological constrictions</p> Signup and view all the answers

    Which arteries supply blood to the abdominal part of the oesophagus and form a porto-systemic anastomosis?

    <p>Left gastric artery and left inferior phrenic artery</p> Signup and view all the answers

    More Like This

    Anatomy of the Esophagus
    29 questions
    Esophagus Structure and Function
    5 questions
    Gastrointestinal Tract Overview
    42 questions
    Use Quizgecko on...
    Browser
    Browser