Our Muscular, Circulatory, Respiratory, Digestive, Excretory, Nervous, Integumentary,

Our human
body consist of 11 main separate yet closely interconnected systems; namely,
the Skeletal, Muscular, Circulatory, Respiratory, Digestive, Excretory,
Nervous, Integumentary, Immune, Endocrine and Reproductive Systems. These work together
to perform different functions and to make a complete functional organism

Firstly, the significance of the skeletal system is its vital structural
purpose to the human body. In addition the skeletal system stores minerals,
produces blood cells and provides protection for delicate organs. The systems
consists of 206 bones are joined through with ligaments, tendons, with
cartilage, a softer cushion like material, providing protection in jointed
areas and muscles- linking to the muscular system . Moreover, the muscle
completely aid movements and are controlled by the muscular system, with these
muscles being connected to bones. Nevertheless, the basis for those movements
is rooted in stimulation proved by nervous system. The nervous system causes
contraction and the resulting movement of bones to which they are attached. In
addition, key involuntary muscles uphold the respiratory and circulatory
systems, by consistently providing contraction of the heart and lungs. The circulatory
system’s main organ is the heart. The heart is so vital as is essentially pumps
blood through arteries, veins and capillaries. Furthermore, notably circulatory
systems is important ; the  nutrients and
oxygen to cells and waste products are removed hence aiding the immune system
through the circulation of white blood cells the circulatory system is
responsible for delivering. The immune system main role is to stop the body
from being corrupted or attacked with pathogens. Key components are lymph
organs, such as the spleen and thymus, and the skin, all of which are
responsible for protecting the body against invading pathogens

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Furthermore, the relationship of circulatory system and the respiratory
system is close also. The respiratory system brings oxygen from the surrounding
air into the body through the alveoli of the lungs. This also links closely to excretory
system. It is tasked for the removal of waste gases (i.e. CO2) through
exhalation. Ultimately this eliminates both solid and liquid wastes. Moreover, gaseous
products, and is made up of a number of specialist tissues along with the
bladder, large intestine, rectum, kidney, lungs. The digestive system is solely
tasked with the physical and chemical breakdown of food. This journey starts in
the mouth- physical breakdown as well as salivary (chemical) breakdown, then travels
through the oesophagus to the stomach (stomach muscles aid in physical
breakdown, while acid {HCL}), and small intestine for digestion. Additionally,
production of digestive enzymes and bile in the liver, pancreas and large
intestine are also involved, through the and the processing nourishment (nutrients)
for the body.

The role of nervous system is delivering impulses the brain through neurons.
The bodies movement and functions are fuelled by electrochemical signals
through the neural network all playing key role in the nervous system .The way
the nervous system intercepts’ with  endocrine system, is  through communication network however utilising
hormones as chemical signals which travel through the blood . Hormones specifically
target organs and carry signals to start or stop performs functions. As a
result, the reproductive system produces of children and reproductive hormones
cause our bodies to develop into sexual maturity.