What are parapodia,chaetae or setae
The definition of chaetae:- A chaetae is a chitinous bristle or setae found on an insect, arthropod or annelid worms such as the earthworm, although the term is also frequently used to describe similar structures in other invertebrates.
The term parapodium (Gr. para, beyond or beside + podia, feet) refers to two different organs. In annelids, parapodia are paired, un-jointed lateral outgrowths that bear thechaetae. In several clades of sea snails and sea slugs, 'parapodium' refers to lateral fleshy protrusions.
Seta is a biological term derived from the Latin word for "bristle". It refers to a number of different bristle- orhair-like structures on living organisms.Annelid setae are stiff bristles present on the body. They help, for example, earthworms to attach to the surface and prevent backsliding during peristaltic motion. These hairs are what make it difficult to pull a worm straight from the ground. Setae inoligo chaetes (a group including earthworms) are largely composed of chitin.[1] They are classified according to the limb to which they are attached; for instance, notosetae are attached to notopodia; neurosetae to neuropodia.[2]
The term parapodium (Gr. para, beyond or beside + podia, feet) refers to two different organs. In annelids, parapodia are paired, un-jointed lateral outgrowths that bear thechaetae. In several clades of sea snails and sea slugs, 'parapodium' refers to lateral fleshy protrusions.
Seta is a biological term derived from the Latin word for "bristle". It refers to a number of different bristle- orhair-like structures on living organisms.Annelid setae are stiff bristles present on the body. They help, for example, earthworms to attach to the surface and prevent backsliding during peristaltic motion. These hairs are what make it difficult to pull a worm straight from the ground. Setae inoligo chaetes (a group including earthworms) are largely composed of chitin.[1] They are classified according to the limb to which they are attached; for instance, notosetae are attached to notopodia; neurosetae to neuropodia.[2]