All about the human body part
All living organisms have a body. The term ‘body’ is usually used to refer to the physical body of an individual living organism. Body parts are the various parts of a body.
While speaking of plants, the term ‘body’ is generally not used. Yet, if one were to refer to the parts of a plant, one would have to mention the three main parts of a plant- the root, the stem, and the leaves.
In animals, every individual organism has a body- which may be composed of only one cell (as in bacteria and certain fungi) or of many cells (as in many vertebrates, including humans).
The parts of a human body basically include the head, the neck, the torso, the four limbs (two arms and two legs) and numerous internal organs which cannot be seen externally.
The human body is comprised mainly of ten biological ‘systems’ that consist of organs. Organs are made of tissues, which in turn are made of cells.
The ten systems are:
1.The skeleton system- includes the 256 bones and cartilages, etc. which give the human body its shape;
2.The muscular system- comprising of the muscles, ligaments and tendons;
3.The respiratory system- consisting of the airways, the lungs and the respiratory muscles;
4.The circulatory system- consisting of blood and arteries, veins and capillaries that carry blood, and the heart, which pumps blood;
5.The digestive system- consisting of the mouth, the salivary glands, oesophagus, the stomach, liver, gall bladder, pancreas, small and large intestines, rectum and anus;
6.The endocrine system- consisting of the various glands that secrete hormones;
7.The reproductive system- the organs that
8.The nervous system- consisting of the brain, the spinal cord and the nerves;
9.The urinary system- consisting of the kidneys and excretory organs;
10.The integumentary system- consisting of the skin, the hair and the nails.
Other than these ten systems and the organs they consist of, there are the immune system and the lymphatic system in the human body.
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