I think what you're looking for is an armature, especially if it's life-size. It's doubtful that you're going to find such a thing online; the best results might be found in looking up sculptors who could construct such a thing.
The Sphinx.
Joints are important because they provide mobility to the human body. Without joints our body would have been like a statue.
Renaissance art really glorified the human body and thought of it as an object of beauty and wonder: hence, the Statue of David by Michaelangelo
I think they took other parts of her 'body' (head, arms, legs, torso, etc.) and looked at the proportions and what it would be in a life-size human to come up with this type of information.
The statue is an Assyrian protective deity, often depicted with a bull or lion's body, eagle's wings, and human's head. For the time, is wasn't so unusual but comparing it with modern statues or catholic statues, it is very different because of the animal body. Modern saints have a common human body.
The Sphinx is an ancient Egyptian statue with the body of a cat and the head of a human. It was built for the sun god Ra.
A Sphynx or Sphinx not sure which spelling, probably the second!
If you are asking about the pyramids at Giza in Egypt, the most famous stone statue is the Sphinx, a statue with the head of a human and the body of a lion. However, in ancient Egyptian mythology, the gods were often depicted having the body of a human and the head of an animal; each god was associated with a particular animal and would often be shown having the head of that animal. For instance, Bastet was a goddess associated with cats, so she is often shown with the head of a cat and the body of a human female.
If you are asking about the pyramids at Giza in Egypt, the most famous stone statue is the Sphinx, a statue with the head of a human and the body of a lion. However, in ancient Egyptian mythology, the gods were often depicted having the body of a human and the head of an animal; each god was associated with a particular animal and would often be shown having the head of that animal. For instance, Bastet was a goddess associated with cats, so she is often shown with the head of a cat and the body of a human female.
The mythical creature with a head like human and a body like a lion is called Sphinx. The Great Sphinx statue of Egypt is in Giza.
The human body, as distinguished from the head and limbs; in sculpture, the trunk of a statue, mutilated of head and limbs; as, the torso of Hercules.
The earliest monumental nude of the Renaissance was sculpted by Donatello. He conceived of his work, specifically the bronze statue of David, as liberating the human body from its marble prison. The statue represents a departure from the classical tradition and marks a significant shift in the understanding and representation of the human form during the Renaissance.