Instructions: Identify the Following Terms

question 39

Short Answer

Instructions: Identify the following terms:
William Henry Harrison

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Definitions:

Septum Primum

First septum in the embryonic heart that arises on the wall of the originally single atrium of the heart and separates it into right and left chambers.

Interatrial Septum

The wall of tissue that separates the right and left atria of the heart.

Septum Secundum

Second of two major septal structures involved in the partitioning of the atrium, arising later than the septum primum and located to the right of it; it remains an incomplete partition until after birth, with its unclosed area constituting the foramen ovale.

Foramen Rotundum

An opening in the sphenoid bone of the skull through which the maxillary branch of the trigeminal nerve passes.