GENERAL HISTOLOGY

Detailed explanation-1: -Sea cucumbers are particularly special because they can regenerate their entire digestive system. Mapping out the sea cucumber genome to compare it to the human genome could be the key to understanding human organ and tissue regrowth.

Detailed explanation-2: -Sea cucumbers (a class of echinoderms) exhibit a high capacity for regeneration, such that, following ejection of inner organs in a process called evisceration, the lost organs regenerate. There are two ways by which evisceration occurs in sea cucmber species: from the mouth (anterior) or the anus (posterior).

Detailed explanation-3: -Like most echinoderms, sea cucumbers have very good regenerative powers. This is shown by their ability to regenerate internal organs including their digestive tract that may be expelled when they feel threatened.

Detailed explanation-4: -Here, the holothurian (sea cucumber) Sclerodactyla briareus was explored as an experimental system to study microbial colonization in the gut, as S. briareus individuals have the ability to completely eviscerate and rapidly regenerate their digestive organs.

Detailed explanation-5: -But they also have chemicals called saponins in their bodies, including in their Cuvierian tubules, which are sticky strings that sea cucumbers shoot out of their cloaca when they’re attacked. Saponins usually burst open the cells of the would-be predator or parasite. But pearlfish aren’t affected.