Organs Without Dual Innervation. Although most organs are innervated by both sympathetic and parasympathetic nerves, some-including the adrenal medulla, arrector pili muscles, sweat glands, and most blood vessels-receive only sympathetic innervation.
The Jamaica Tourist Board (JTB) was established in 1955 by Tourist Board Law 61 of 1954 â¦ over 450 years after the famous declaration by Christopher Columbus that Jamaica was the âfairest island that eyes have beheld â¦â The JTB came under the aegis of the Ministry of Trade and Industry.
From all the above it would seem as if the best time to visit Jamaica is during the months of December to early April (also known as the dry season). As a matter of fact, the winter tourist season (high season) in Jamaica lasts from December 15 to April 14. Christmas and Easter are the busiest weeks.