The base of the skull ossifies in cartilage while the skull cap ossifies in the membrane.
At birth, the skull comprises one table only. By 4 years or so, two tables are formed. Between the two tables, there are diploes, i.e. spaces containing red bone marrow forming RBCs, granular series of WBCs and platelets. Four diploic veins drain the formed blood cell into neighboring veins
Skull bones are united by sutures.
Petrous temporal is the densest bone of the body.
Skull lodges the brain, meninges, CSF, glands like hypophysis cerebri and pineal, venous sinuses, teeth, special sense like retina of eyeball, taste buds of the tongue, olfactory epithelium, cochlear and vestibular nerve endings.
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