A picture of the backbone.
"A, acromion; C, coracoid; CA, carpus; CL, clavicle; H, humerus; M, metacarpals; O, ventral surface…
Human skeleton of a finger.
A human skeleton.
Picture of the skull, showing the hole which the backbone connects to the base of the skull.
This letter W is enclosed in a box with a background design of a human skeleton.