Endemic to Madagascar, the common name for this plant is traveler's palm. It's most striking characteristic is its huge, fan-like structure. The leaves of the traveler's palm can grow to 10 feet in length and, when mature, the tree will stand 30 to 60 feet in height.omments. Submit. The island nation of Madagascar, off the southeastern coast of Africa, contains 12,000 plant species, most of them endemic to the island. Ecosystems on the island include tropical moist forests, dry forests, wetlands and coral reefs.
Organs of the Immune System: The Spleen. Among organs that contribute to our immune response, there are two categories: primary lymphoid organs and secondary lymphoid organs. The spleen is a secondary lymphoid organ. Your spleen is found about halfway up your torso in the left abdominal cavity.
The lymphatic system consists of lymphatic fluid (called  lymph ) flowing through a system of lymphatic vessels, including lymphatic capillaries, other lymphatic vessels of various sizes (which can be compared with blood vessels), and lymph nodes (which are encapsulated masses of B Cells and T Cells).ach node is covered by a capsule of dense connective tissue. The Spleen-This is the largest single mass of lymphatic tissue in the human body. The outer covering of the spleen is formed by dense connective tissue. The spleen itself consists of two types of tissue, called white pulp and red pulp.