The main function of the spinal column is to support the weight of the head. It is also to help keep the body upright.
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The spiral column, also known as the cochlear duct in the inner ear, plays a crucial role in hearing. It contains the organ of Corti, which contains hair cells that help convert sound vibrations into electrical signals that are transmitted to the brain for interpretation. The spiral shape of the cochlea is important for amplifying and processing different frequencies of sound.
The function of a fetal pig's vertebral column is to reinforce the vertebrate animal. It also keeps the fragile spinal cord protected.
The primary purpose of a vertebral column is to protect the group of nerves thus enclosed. Consider the fish, or most animals which have a horizontal column. This column also acts as an anchorage for muscles and tendons, thus facilitating movement of the organism. Only in a few animals, is the vertebral column approximately vertical, and in this attitude, it enhances the apparent height of the animal, thus offering the animal a superior height for vision.
The spiral valve in sharks functions as a part of their digestive system to increase the surface area available for nutrient absorption. It slows down the passage of food through the intestine, allowing for more efficient absorption of nutrients before waste is excreted.
Essentially the same as that in any other vertebrate - including us. It is the central column of the skeleton, and the conduit for the nerve-bundle that is the spinal cord.
The spiral shelled mollusk that many people know these days are the snail it is a spiral shell to protect this animal from its prey.