sinuses
The hollow spaces above the nasal cavity are known as the paranasal sinuses. These air-filled cavities are located within the bones of the skull and are connected to the nasal passages. They play a role in reducing the weight of the skull, enhancing voice resonance, and providing insulation for the structures of the head. The main sinuses include the frontal, maxillary, ethmoid, and sphenoid sinuses.
The hollow spaces containing a soft substance are typically referred to as cavities or chambers. In biological contexts, these can include structures like the ventricles of the heart or the sinuses in the skull, which often contain soft tissues or fluids. In geological terms, hollow spaces in rocks or minerals may hold softer materials like clay or other sediments. These cavities play important roles in the function and structure of the systems they are part of.
The brain fills the hollow inside of the skull and some parts of the eye
sinuses
that is called the baby's soft spot. which is when the baby's skull is not fully developed.
the brain ... and, partially, the eyes.
If the animal communicates by making sounds or noises the you know the animalsskull is hollow!!!!!! :]-icebrg42-
The old mayor's skull was turned into a candle holder.
A small, hollow section between the lower cerebellum and skull
The brain is protected by the thick, hollow skull.
Spaces between skull bones that have not ossified usually occur from birth to age two and are called fontanels. By age two, the fontanels close and become sutures.
Fontanelles are spaces between the bones in an infant's skull that allow for brain growth and development. These soft spots allow the skull to expand as the brain grows rapidly in the early years of life. Fontanelles eventually close as the bones in the skull fuse together.