What is the approximate mass of a typical adult male human brain?
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Answer: C. 1350 gr
Explanation
The average adult human male brain weighs approximately 1350 grams overall. Brain mass correlates with body size, overall height, and biological sex differences. This weight accounts for about two percent of the total adult body mass. Human brain tissue consists of neurons, glial cells, and dense vascular networks. Cerebrospinal fluid provides buoyancy and protection surrounding the central nervous system structures. Evolutionary expansion of the brain enabled advanced cognitive functions in hominids.
Neurological examinations consider brain volume and mass during diagnostic imaging procedures. Significant variations in brain weight can sometimes indicate pathological neurodegenerative conditions. Comparative anatomy studies brain-to-body mass ratios across different mammalian species. Option A suggests an impossibly small mass that cannot support complex neural networks. Option B underestimates the typical adult male brain mass documented in scientific literature. Option D overestimates the average weight typically recorded for adult male brains.
- Subject
- Everyday Science
- Category
- Everyday Science
- Topic
- —
- Difficulty
- medium
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