The signaling cascades that determine left-right asymmetry of internal organs in humans are caused by extracellular fluid flowing over
A) the epiblast.
B) the blastocyst.
C) the inner cell mass.
D) a node of ciliated cells.
E) the hypoblast.

Question

Quizplus · Accepted Answer

The signaling cascades that determine left-right asymmetry of internal organs in humans are caused by extracellular fluid flowing over a structure called the node of ciliated cells, which is located at the posterior end of the embryonic disc.

The Signaling Cascades That Determine Left-Right Asymmetry of Internal Organs