cranium

Examples of cranium in the following topics:

• The Evolution of Craniata and Vertebrata

  • Members of Craniata posses a cranium, which is a bony, cartilaginous, or fibrous structure surrounding the brain, jaw, and facial bones .
  • The clade Craniata includes all vertebrates and the hagfishes (Myxini), which have a cranium but lack a backbone.
  • Craniata, including this fish (Dunkleosteus), are characterized by the presence of a cranium, mandible, and other facial bones.
  • All vertebrates are in the Craniata clade and have a cranium.

• Sensory-Somatic Nervous System

  • Humans have 12 cranial nerves, nerves that emerge from or enter the skull (cranium), as opposed to the spinal nerves, which emerge from the vertebral column.

• Phylum Porifera

  • The invertebrates, or Invertebrata, are animals that do not contain bony structures such as the cranium and vertebrae.

• Gnathostomes: Jawed Fishes

  • One of the most significant developments in early vertebrate evolution was the development of the jaw, which is a hinged structure attached to the cranium that allows an animal to grasp and tear its food.