Question

In urodales conus is replaced by

Answer 1

Explanation:

The spinal cord tapers and ends at the level between the first and second lumbar vertebrae in an average adult. The most distal bulbous part of the spinal cord is called the conus medullaris, and its tapering end continues as the filum terminale.

Answer 2

In urodeles, conus is replaced by Bulbous arteriosus.

• Reptiles, birds, and mammals do not have the conus arteriosus, which is an accessory sac that is attached to the heart of fishes and amphibians.
• The urodeles have a highly reduced conus that has paired valves.  
• The part of the aorta that is closest to the conus is a pear-shaped bulbous arteriosus, which has a thin wall.

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