The cells of this cluster inside next to the fluid-filled cavity is a region of the blastocyst called the inner cell mass.
⇑ Translate the sentence above by Google ⇑
Related: cluster, fluid
Prev: If the center of NGC 4258 were a star cluster, the stars would be so closely spaced that collisions between individual stars would have long ago torn the cluster apart.
Next: Each atomic cluster is made up of neutrons and protons.
