THE LAND: Afghanistan is known for it's mountainous terrain. The huge Hindu Kush mountains form a barrier between the Northern provinces and the rest of the country. This mountain range has also divided Afghanistan int three very different geographic regions known as; The Central Highlands, The Northern Plains, and the Southwestern Plateau.
â Antibody producing B cells develop into plasma cells â¢ Plasma cells only found in lymphoid organs, not in general circulation or lymph â¢ eccentric nuclei and perinuclear halo (clear region under nucleus) â Clonal expansion leads to development of effector cells or memory cells for both T and B events. Memory cells can survive 20 years or
Organs in the human body: Functions, location, definition of organs. An organ is a structure that contains at least two different types of tissue functioning together for a common purpose. There are many different organs in the body: the liver, kidneys, heart, even your skin is an organ.Usually there is a main tissue and sporadic tissues.or example, main tissue in the heart is the myocardium, while sporadic are the nerves, blood, connective etc.. Functionally related organs often cooperate to form whole organ systems. There are 10 major organ systems in the human body. List of Organs in human body: 1  Heart. 2  Brain.