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The cadiovascular system, sometimes called the circulatory system when it includes the lymphatic system.
The cure of respiratory and circulatory system's disorders or diseases is keeping off all forms of drugs.
endoplasmic reticulum
A thrombus is a blood clot that forms in the circulatory system and remains where it forms rather than circulating in the blood.
The spleen produces blood cells, and forms part of the immune system.
A bruise is a haemorrhage under the skin, so it would be the circulatory system that forms them.
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organelles are made from tissues and tissues are made from cells. cells forms tissues tissues forms organelles organelles form a system.
lysosme
Plates and Fibers work together to form the scab
An organ system forms an organism. The whole setup is, from smallest to largest, is Organelle Cell Tissue Organ Organ System Organism
Humans didn't develop a circulatory system. Early forms of circulatory systems developed in the first animals and organisms to roam the earth. As these species evolved through speciation and genetic variation, new species came to exist that also had circulatory systems. Over time, the systems became more complex and efficient (compare the cardiopulmonary circulatory system of the human compared to the circulation of a fish). Therefore, without circulatory systems there would be no humans nor would there be life as we know it