Which of the following structures is present characteristically only in the mammalian brain?
Correct answer: D. Corpus callosum
- A. Corpus fibrosum
- B. Corpus striatum
- C. Corpus luteum
- D. Corpus callosum
Explanation
The correct answer is the corpus callosum, which is a large band of white matter connecting the two hemispheres of the brain and is unique to mammals. This structure facilitates inter-hemispheric communication. Corpus fibrosum and corpus luteum are related to ovarian structures and have no connection to the brain, while corpus striatum is present in various animals, including birds, and is not exclusive to mammals.
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