Skeletons are a rigid framework that function to provide support and protection for body organs

• Skeletons can be internal (endoskeletons) or external (exoskeletons) depending on the organism

• Endoskeletons typically consist of numerous bones, while exoskeletons are comprised of connected segments made of chitin

Skeletons provide a surface for muscle attachment (anchorage) and thus facilitate the movement of an organism

• Bones and exoskeletons act as levers, moving in response to muscular contraction

• Bones are connected to other bones by ligaments, and bones are connected to muscles by tendons