QQuestionAnatomy and Physiology
QuestionAnatomy and Physiology
Which of these provides passageways for spinal nerves that connect to the spinal cord?
A. Lacunae
B. Intervertebral foramina
C. Intervertebral disks
D. Vertebral foramina
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Answer
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Step 1:I'll solve this anatomy problem step by step:
Step 2:: Understand the Key Terms
- Lacunae: Small spaces within bone tissue that house bone cells (osteocytes) - Intervertebral foramina: Openings between vertebrae - Intervertebral disks: Cartilaginous cushions between vertebrae - Vertebral foramina: Central openings within each individual vertebra
Step 3:: Analyze the Spinal Nerve Pathway
Spinal nerves must exit the spinal column and connect to the spinal cord. This requires a specific anatomical passage.
Step 4:: Evaluate Each Option
- Lacunae: These are bone-related spaces, not nerve passages - Intervertebral disks: Provide cushioning between vertebrae, not nerve passages - Vertebral foramina: Central canal within vertebrae, but not external nerve exits - Intervertebral foramina: These are the specific openings between vertebrae where spinal nerves exit and enter
Step 5:: Confirm the Anatomical Mechanism
Intervertebral foramina are the precise openings that allow spinal nerves to pass between vertebrae, connecting the spinal cord to different body regions.
Final Answer
Intervertebral foramina
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