The body has various systems with different functions. These functions range from reproducing a cell to developing a new human being, from circulating the blood to capturing oxygen from the air, and from processing and chemical transformations to absorbing nutrients and discarding waste. These functions act in harmony, and their interaction is surprisingly efficient. Let's know something about various systems of human body and their functions :

CIRCULATORY SYSTEM 

This system carries blood to and from the heart and reaches the organs and cells in every part of the body. The supreme pump - the heart - drives the vital fluid - blood - through the arteries and collects it by means of the veins, with a continuous driving impulse that makes the heart the central engine of the body.

 SKELETAL SYSTEM 

The skeleton, or skeletal system, is a solid structure consisting of bones that are supported by ligaments and cartilage. The main functions of the system are to give the body form and to support it, to cover and protect the internal organs, and to allow motion to occur. The skeleton also generates red blood cells (called erythrocytes).

NERVOUS SYSTEM 

The central nervous system consists of the brain, which is the principal organ of the body, along with the spinal cord. The peripheral nervous system consists of the cranial and spinal nerves. Together they send external and internal sensations to the brain, where the sensations are processed and responded to whether the person is asleep or awake.

REPRODUCTIVE SYSTEM 

MALE - The various male organs contribute one of the two cells needed to create a new human being. Two testicles (or gonads) and a penis are the principal organs of the system. The system is continuously active, producing millions of tiny cells called spermatozoa.

FEMALE - A woman's internal organs are the vagina, the uterus, the ovaries and the fallopian tubes. The basic functions of these organs are the production of ova and the facilitation of fertilization of an ovum by a spermatozoon (a mature male sperm cell). When fertilization occurs, it sets a group of processes in motion that result in pregnancy.

LYMPHATIC SYSTEM 

Its basic functions are twofold. One is to defend the body against foreign organisms, such as bacteria or viruses. The other is to transport interstitial fluid and substances from the digestive system into the bloodstream via the lymphatic drainage system.

Some other systems will be discussed in the next blog. Till then, stay connected.