The function of the ambulacral groove on a starfish is to open the shells of bivalves. It also hold the tubed feet of the starfish.
Echinoderms can have ambulacral parts that include ossicles, plates, spines, and suckers. For example, sea stars or "star fish" have an ambulacral groove on their oral side (underside). This ambulacral groove extends from the mouth to the end of each ray or arm. Each groove of each arm in turn has four rows of hollow tube feet that can be extended or withdrawn. Opposite the ambulacral groove is an ambulacral ridge on the aboral side of each ray.
The Ambulacral Groove
If your asking where it is, its on the Ventral(bottom) side. It is the indent in the starfishes' skin that goes through all of the starfishes' rays (arms). It is called the ambulacral groove.
locomotion
An ambulacral is another word for an ambulacrum, a row of pores of an echinoderm for the protrusion of appendages such as tube feet.
In a starfish, the ambulacral ossicles are little calcified bony plates covering the radial canal.
Holds The root and matrix of the nail
Carries food from the oral groove to the food vacuole.
it doesn't really do anything it is just a part of the body
The Olfactory Groove on the squid is used to smell its environment. Anytime you see the word olfactory it has something to do with the sense of smell.
It directs food to the mouth.It is the shallow or line between the primary part of the crown or root
an oral groove specially the one found in Paramecium serves as their "mouth" its where their to-be-ingested food enters. an oral groove specially the one found in Paramecium serves as their "mouth" its where their to-be-ingested food enters.