Why is the pericardium membrane is shiny and slippery?

How long does a first period last? What does the blood in the lung do? Can you still drive with eye floaters? What is the difference between fistula shunt? What is the role of GABA in huntington's disease? What region of the spine has least potential movement? Does an area of injury always bruise before swelling? What are the most common symptoms associated with asthma? Can you catch a cold from being in the cold? If you catch the Narcissist in a lie or tell them they're living in denial is this likely to unleash a rage and get you devalued and discarded? Did a animal start the bubonic plague? Can your baby stop growing at 6 weeks 5 days and two weeks later you still have sore breasts and a high basal body temperature? Is the pharynx known as the vocal cord? How many tapeworms are there? Will holding in your stomach take inches off? What is a numbness in ankles and legs followed by some cramping and subsequent paralysis? Why does mild cognitive impairment get mistaken for dementia? What if white count is 12.4? Symptoms of ulcer? Cures and medicines for diseases such as diabetes can be credited to the study of?