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Human blood consists of blood cells and plasma.
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Systemic circulation carries oxygenated blood from the heart to the body, while pulmonary circulation carries oxygenated blood from the lungs to the heart.
Smoking severely damages the respiratory system, it may cause COPD or lung cancer.
Glands of the endocrine system secrete hormones into the blood.
The respiratory system is responsible for the intake of oxygen and the release of carbon dioxide.
The heart is the central pump of the cardiovascular system beating several billion times over our lifetime.
The cause of a heart attack is the blockage of a coronary artery. It is one the most common causes of death.
Lymph vessels carry lymph to the blood vessels, while lymph nodes are integral parts of the immune system.
The three main types of blood vessels in the human body are the arteries, the veins, and the capillaries.
Connective tissues include loose and dense connective tissues, adipose tissue, blood, tendon and bone tissue.
A blood clot that forms in the deep veins of the lower limbs can cause a fatal pulmonary embolism if they enter the lungs.
Oxygen carrier protein in our red blood cells.
The Hypothalamic-pituitary axis is the regulating centre of our endocrine system.
The three types of muscle found in the human body are the smooth, the striated and the cardiac muscle.
Neurons are cells specialised for transmitting electric signals.
Polypeptide chains are composed of amino acids and can appear in alpha-helix or beta-sheet form.
The structure and arrangement of polypeptide chains affects the spatial structure of proteins.
The ribs, the sternum and the spinal column form the skeleton of the chest.
The heart generates the electrical impulses necessary for its own operation. The graphic representation of the electrical activity of the heart is the...
This scene summarizes the main organs of the human body.
Surface epithelia cover the external and internal surfaces of the body
This scene presents the basic components of the human body.
Colourless, odourless, heavier-than-air gas. Necessary for the photosynthesis of plants.
A colourless, odourless gas, an important component of the atmosphere, indispensable to sustain terrestrial life.