The octopus completely lacks any bones in its body.
Oh yes. If you did not have bones in your arms, they would be tentacles.
If bones did not have joints between them, you would not be able to move; would not be able to bend you arms, legs, etc.
No, your arm bones do not cross when you fold your arms.
Three bones in your arms
the elbow bone the toher bones and the hand bones
the bones in your legs and arms
The octopus completely lacks any bones in its body.
Eels have no arms. Instead of arms Eels have Pectoral fins.
stuff bones muscles
quite a few
There are 32 bones in one human's arm...
The fore arm has two bones - the Radius and the Ulna