Registration numbers must be not less than three inches (3) in height and the. documented name must be in 4-inch letters. Spaces or hyphens should be equal to the. width of a letter other than I or a number other than 1. On vessels so configured that a.
Sponge Animation: Spicules. Spicules are microscopic structures of hard crystal material with fantastic shapes unique to the different species of sponge. They are part of the skeleton that helps give the sponge its shape.
Dental Bone Spicules. In comparison to other bone spicules, dental bone spicule is a relatively familiar term due to the fact that one might have heard about it occasionally on their visit to a dental clinic.astly, the term is also used to describe a symptom related to an eye disease. Overall, medical students, practitioners, nurse etc, who are into vision and dental fields are the people who are most familiar with the term bone spicule.