What type of skeleton do humans possess?

Humans possess an endoskeleton, which is characterized by an internal framework made up of bones and cartilage. This type of skeleton provides structural support to the body, protects vital organs, and allows for movement through the attachment of muscles. The endoskeleton is evolutionary advantageous as it can grow with the organism, accommodating increases in size without the need for shedding or molting, unlike exoskeletons.

The presence of an endoskeleton also facilitates a broad range of motion and flexibility, which is vital for complex movements and activities. The human skeleton consists of 206 bones in adults, organized into axial and appendicular components, contributing to various bodily functions such as posture, blood cell production in bone marrow, and mineral storage.

In contrast, other types of skeletons, such as exoskeletons, are external and are found in animals such as insects and crustaceans. Hydrostatic skeletons, found in organisms like jellyfish and worms, rely on fluid pressure for support and movement, while cartilaginous skeletons are composed primarily of cartilage, as observed in species like sharks and rays. None of these alternative skeleton structures apply to the human body.