Which two bones on each side of the head form the entire crown and top sides?

The parietal bones are located on each side of the skull and are pivotal in forming the crown and top sides of the head. Each parietal bone is situated posterior to the frontal bone and lateral to the occipital bone, together creating a structure that houses and protects the brain.

In the context of cranial anatomy, these bones articulate with various other cranial bones, contributing to the overall shape and contour of the skull. Their primary role is structural, providing support and protection while also allowing for areas of muscle attachment, which is important for scalp and head movement.

Understanding the parietal bones’ arrangement and relationship with other cranial bones is essential for various practices in cosmetology and hair styling, as it directly influences how hair falls and styles on the head. Recognizing these bones helps in determining the best hair cutting techniques and styles that complement the head's shape.