Structure [edit]. Nervous tissue is composed of neurons, also called nerve cells, and neuroglial cells. Typically, nervous tissue is categorized into four types of tissue. In the central nervous system (CNS), the tissue types found are grey matter and white matter.ells of nervous tissue. Nervous tissue is the main component of the two parts of the nervous system; the brain and spinal cord of the central nervous system (CNS), and the branching peripheral nerves of the peripheral nervous system (PNS), which regulates and controls bodily functions and activity.
(April 2012). A (geographical) meridian (or line of longitude) is the half of an imaginary great circle on the Earth's surface, terminated by the North Pole and the South Pole, connecting points of equal longitude. The position of a point along the meridian is given by its latitude. Each meridian is perpendicular to all circles of latitude. Each is also the same length, being half of a great circle on the Earth's surface and therefore measuring 20,003.93 km (12,429.9 miles).
Senior Fellow in Electrical Engineering. The longitude of a point on earth is the angle, east or west, between that point. and a certain reference line on the earth. If you take a globe or a map and draw a line through all the points that have. exactly the same longitude, the line you get is the meridian of that longitude.The reference line is the meridian of zero longitude, called the Prime Meridian.atitude is the angle north or south between a place and the equator. Longitude is the angle east or west between the same place and the Prime Meridian. With only those two numbers, you can nail down any point on the Earth. 1 person found this useful.