Question

Which of the following structures is present only in mammalian brain?

• A. Corpus luteum
• B. Corpus striatum
• C. Corpus fibrosum
• D. Corpus callosum

Answer 1

The correct option is D Corpus callosum

Corpus callosum is present only in the mammalian brain while it is absent in other vertebrates such as birds, reptiles, amphibians and fish.

It allows for communication between the two cerebral hemispheres. It is a wide, flat bundle of neural fibers beneath the cortex in the mammalian brain at the longitudinal fissure and It is the largest white matter structure in the brain. Hence, the correct answer is option D.