General Biology I

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Dorsal cavity

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General Biology I

Definition

The dorsal cavity is a major body cavity located along the posterior (dorsal) side of the body. It houses and protects the central nervous system, including the brain and spinal cord.

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5 Must Know Facts For Your Next Test

  1. The dorsal cavity is divided into two main sub-cavities: the cranial cavity and the vertebral cavity.
  2. The cranial cavity encases the brain, while the vertebral cavity surrounds and protects the spinal cord.
  3. It is one of the primary cavities of the human body, with its counterpart being the ventral cavity.
  4. The meninges are protective membranes that line both parts of the dorsal cavity to offer additional protection to central nervous system structures.
  5. Unlike some other body cavities, such as those in the ventral region which house vital organs like lungs and heart, the dorsal cavity primarily focuses on protecting neural components.

Review Questions

  • What are the two sub-cavities of the dorsal cavity, and what do they encase?
  • How does the dorsal cavity differ from other body cavities in terms of its primary function?
  • What protective membranes line the dorsal cavity?

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