Question

Identify the wrong statement about frog.

• A. Parathyroid and pineal body are present
• B. There are ten cranial nerves only
• C. Optic lobes are situated in the mid brain
• D. The ventricle opens into the conus arteriosus

Answer 1

Answer: (A)

Parathyroid and pineal body are present

There are ten pairs of cranial nerves arising from the brain. The brain is enclosed in a bony structure called brain box. The brain is divided into fore-brain mid-brain and hind-brain. Forebrain includes olfactory lobes, paired cerebral hemispheres, and unpaired diencephalon. The midbrain is characterized by a pair of optic lobes. Hind-brain consists of cerebellum and medulla oblongata. The ventricle opens into a sac-like conus arteriosus on the ventral side of heart.

So the correct option is "Parathyroid and pineal body are present".