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Answer 1

HEY DEAR ,,,,,,,

...........HEART.......

..........The heart is covered by a wall called pericardium which is made up of three layers. These are the epicardium, the myocardium and the endocar­dium. The epicardium is a serious membrane and is the outer most layers. This secrets a serious fluid into the space between the visceral and the parietal pericardium. This fluid called the pericardialfluid allows smooth movement when the heart beats. It has been estimated that there will be normally about 15 ml of the pericardial fluid.

Internally the heart is composed of 4 chambers namely

1. Right auricle (atrium)

2. Left auricle (atrium)

3. Right ventricle and

4. Left ventricle

..............KIDNEY...........

.............In human beings the kidneys are paired. They are bean shaped and are located between the levels of last thoracic and third lumbar vertebrae. The right kidney is placed slightly lower than the left because of the pres­ence of the liver.

The average size of the human kidney measures about 11 to 13 cms in length; 5 to 7.5 cms wide and 2.5 cms thick. In adults each weighs about 150 gms and this correspondence to about 1% of the body weight. The medial border of the kidney is slightly concave and has a marked depres­sion.

A long section of the kidney shows two main regions - an outer reddish cortex and an inner pale coloured medulla.

Cortex: The Cortex is granular in appearance because of the presence of convoluted uriniferous tubules.

Medulla: The medulla looks striated as the tubules run through it in a straight course. It consists of 10 to 15 conical masses called the renal pyramids. Two or three pyramids usually fuse and form the common apex called papilla.

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Answer 2

hey!! mate..

HEART::::>The heart is a muscular organ in most animals, which pumps blood through the blood vessels of the circulatory system. Blood provides the body with oxygen and nutrients, as well as assisting in the removal of metabolic wastes. In humans, the heart is located between the lungs, in the middle compartment of the chest.

KIDNEY::::>The kidneys are two bean-shaped organs in the renal system. They help the body pass waste as urine. They also help filter blood before sending it back to the heart. ... creating hormones that help produce red blood cells, promote bone health, and regulate blood pressure....

IT'S A SIMPLE QUESTION.