Multiple choice

Oropharyngeal membrane is a transient ectodermal membrane formed in embryos. The intraembryonic coelom located cranial to the oropharyngeal membrane becomes _________.

  1. oral cavity

  2. pericardial cavity

  3. tongue

  4. stomodeum

  5. nasal cavity

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The cardiogenic region lies cranial to the prochordal plate and its descendant, the oropharyngeal membrane. The heart tubes form on the endoderm side of intraembryonic coelom in the cardiogenic region. Following the head and lateral body folding, heart and its portion of intraembryonic coelom called pericardial cavity lie in the chest.