which places fall under the latter mentioned body?
It covered most of the modern Italian regions of Lazio (which includes Rome), Marche, Umbria and Romagna, and portions of Emilia.
Papal States
At their zenith, the Papal States covered most of the modern Italian regions of Lazio (which includes Rome), Marche, Umbria and Romagna, and portions of Emilia. 
explain why iv infusion of medication is the most dangerous method to administer medication One of the reason is that the placement of an intravenous line requires breaking the skin and there is a risk of infection. what is the meaning of this therapy? It is a medical technique that delivers a liquid directly into a person's vein. when was this used first in the past? 1492 what was the reason to use it? When Pope Innocent VIII fell ill and was administered blood from healthy individuals. who is this person mentioned above? He was head of the Catholic Church and ruler of the Papal States.
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Papal States [SEP] Introduction
These holdings were considered to be a manifestation of the temporal power of the pope, as opposed to his ecclesiastical primacy. By 1861, much of the Papal States' territory had been conquered by the Kingdom of Italy. Only Lazio, including Rome, remained under the pope's temporal control. In 1870, the pope lost Lazio and Rome and had no physical territory at all, except the Basilica of St Peter and the papal residence and related buildings around the Vatican quarter of Rome, which the new Italian state did not occupy militarily. In 1929 the Italian Fascist leader Benito Mussolini, the head of the Italian government, ended the "Prisoner in the Vatican" problem involving unified Italy and the Holy See by negotiating the Lateran Treaty, signed by the two parties.