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Questions and Answers
What is the primary function of the dorsal body cavity?
What is the primary function of the dorsal body cavity?
- House the respiratory system organs
- Enclose the digestive system organs
- Support the circulatory system organs
- Protect the nervous system organs (correct)
Which two subdivisions make up the dorsal body cavity?
Which two subdivisions make up the dorsal body cavity?
- Abdominal cavity and pelvic cavity
- Thoracic cavity and abdominal cavity
- Cranial cavity and vertebral cavity (correct)
- Cranial cavity and thoracic cavity
What structure encases the brain within the cranial cavity?
What structure encases the brain within the cranial cavity?
- Pelvic girdle
- Vertebral column
- Skull (correct)
- Rib cage
What surrounds the brain and spinal cord for protection?
What surrounds the brain and spinal cord for protection?
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What is true about the relationship between the cranial cavity and the vertebral canal?
What is true about the relationship between the cranial cavity and the vertebral canal?
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Study Notes
Body Cavities
- Enclosed spaces that contain and protect internal organs.
- Lined with specialized membranes that provide support and protection.
Dorsal Body Cavity
- Essential for protecting organs of the nervous system.
- Comprises two primary subdivisions:
- Cranial Cavity:
- Encased by the skull, housing and protecting the brain.
- Vertebral (Spinal) Cavity:
- Formed by the bony vertebral column, which encases the spinal cord.
- Cranial Cavity:
- Cranial cavity and vertebral canal are interconnected, forming a continuous protective space.
- Surrounding both the brain and spinal cord are protective membranes known as meninges.
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