Examlex
Which choice correctly identifies the structures in the brainstem?
Oxygen-poor Blood
Blood that has a reduced oxygen content, typically found returning to the heart via the veins.
Interventricular Septa
The thick wall separating the lower chambers (ventricles) of the heart.
Auricles
Auricles, in anatomy, primarily refer to the external part of the ear; however, they can also denote ear-like extensions or appendages in other organs, such as the atria of the heart.
Serous Membrane
A smooth tissue membrane consisting of two layers of mesothelium, which secrete serous fluid to lubricate and reduce friction between tissue layers.
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