I think it’s called the passer.
        
             
        
        
        
 <span>synthesis in rough endoplasmic reticulum 
packed, processed in golgi apparatus and exported in vesicles via exocytosis</span>
        
             
        
        
        
<span>Metamorphic rocks form by existing rocks join together under high heat and pressure. Examples of metamorphic rocks are marble, schist, slate, and quartzite. Metamorphic rocks formed when the minerals are chemically changed due to heat and pressure. They are often seen near magma but they do not melt like igneous rock.</span>
        
                    
             
        
        
        
Answer:
Explanation:
Based on the information provided within the question it can be said that there are various reasons for the placement of this, most of the reasons include, 
- To prevent or reduce sensitivity and discomfort of the prepared tooth & surrounding structures  
- To protect the margins of the preparation
- To maintain the function & esthetics of the tooth
- To prevent shifting of adjacent or opposing teeth