internal and external structure

A longitudinal section of the kidney shows three distinct regions: Renal Cortex Renal Medulla Renal Pelvis A longitudinal section of the kidney showing three distinct regi..

The human heart is a muscular, cone-shaped, hollow organ about the size of a fist (about 12cm in length and 9cm in breadth). The heart is situated behind the sternum, between the lungs in the thoracic cavity. The heart is tilted slightly such that its apex is towards the left side. Externa..

The kidneys are reddish brown, bean-shaped organs situated in the abdominal cavity, one on either side of the vertebral column in the lumbar region of the body. They lie asymmetrically, the right kidney being lower than the left as the right side of the abdominal cavity is occupied by the liver. E..

This is the simplest type of modem to install because you don't have to open the computer. External modems have their own power supply and connect with a cable to a computer's serial port. The telephone line plugs into a socket on the rear panel of the modem. Because external m..

Cellular respiration is common to all organisms - plants or animals. However, the external respiration, that is, the mechanism of gaseous exchange is different for different organisms. In plants, it is through pores over the body surface. In animals, the various ways of gaseous exchange a..

Cellular respiration is common to all organisms - plants or animals. However, the external respiration, that is, the mechanism of gaseous exchange is different for different organisms. In plants, it is through pores over the body surface. In animals, the various ways of gaseous exchange ..

Internal Structure of a Human Ear Each ear has three parts - outer, middle and inner e..

When current is drawn from a cell, ions move within the cell from one electrode to another. The resistance offered by the electrodes and electrolytes to these, measure the internal resistance of the cell.The internal resistance of a cell depends on the distance between the plate..

There appear to be many structures that are similar because of the function they carry out and in their external appearance. However, these structures differ internally. Such structures are called analogous structures. For example, wings ..

Light - The effect of light on growth can be studied under 3 headings light intensity, light quality and duration of light. Growth is generally favoured by darkness, but light is indispensable because of its role in the manufacture of food. Young plants growing in the absence of light develop elong..