Why is the human arm considered an organ?

Answer 1

Simple answer, Evolution, without them early human species would have never survived.

Improved answer: simply because life on this planet was once just a clump of cells, then some became bigger and still disorganized and were called porifera(coral) then some split off and became radiata(circular symmetry) like sea anemnonies then life split again and took on bilateral symmetry(split down the middle and both sides would be identical). this is the same for all modern animals. Humans have arms because most other animals do, because the animals our predecessors evolved from all had the same ancestor which had the 1-2-5 bone limb structure(humerous-radius/unla-phalanges). and being bilateral we must have our arms as we havent evolved enough yet to be capable of leaving them behing like our tail(cocyxx bone) and our gills( we have kept one set as our eustacian canals in our ears, but we have gills as embryos)

Answer 2

The human arm is considered an organ because it is a collection of tissues with a specific structure and function that work together as a unit to perform tasks such as movement and manipulation. Organs are defined as structures made up of two or more different tissues working together to perform specific functions in the body.

Answer 3

because they are a collection of tissues just like in an organ