Question

Midbrain of Frog consists of

• A. Corpora quadrigemina
• B. Corpora quadrigemina and crura cerebri
• C. Two optic lobes and crura cerebri
• D. Two optic lobes

Answer 1

The correct option is C Two optic lobes and crura cerebri

Midbrain consists of optic lobes and crura cerebri. Behind the diencephalon two ovals, large slightly pressed to the outside, optic lobes are present. The brain is thickened to form two fibrous strands of nervous tissue, the crura cerebri which carry the stimuli between the cerebral hemispheres and medulla oblongata.

So the correct answer is 'Two optic lobes and crura cerebri'.