Final answer:
Long nails can hinder proper procedure performance and create a risk of infection due to bacterial growth. Fingernails act as protective plates and aid in environmental sensing.
Step-by-step explanation:
Long nails could inhibit you from properly performing a procedure and the bacteria that can grow under them could cause infection at the procedure site. Nails act as protective plates over the fingertips and toes. Fingernails also help in sensing the environment. The area under your nail has many nerve endings, which allow you to receive more information about objects you touch.