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Respiratory system

Respiratory system

The respiratory system is responsible for the intake of oxygen and the release of carbon dioxide.

Bioloģija

Atslēgvārdi

elpošanas sistēmas, elpošana, ieelpojot, izelpas, plautenis, krūtis, elpošanas muskuļi, elpceļi, bronhu, bronhi, alveolārais sac, gāzes maiņa, plaušu cirkulācija, sarkanās asins šūnas, saistīšana ar skābekli, skābeklis, oglekļa dioksīds, modelis plaušās, traheja, balsene, deguna dobuma, diafragma, starpnozaru muskuļi, kapilārs, elpošanas virsma, cilvēks, Bioloģija

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Effects of smoking on the lungs

Smoking severely damages the respiratory system, it may cause COPD or lung cancer.

Voice production

When producing sound, the vocal cords are vibrated by the air flowing out of the lung.

Carbon dioxide (CO₂) (beginner)

Colourless, odourless, heavier-than-air gas. Necessary for the photosynthesis of plants.

Circulatory system

Systemic circulation carries oxygenated blood from the heart to the body, while pulmonary circulation carries oxygenated blood from the lungs to the heart.

Deep vein thrombosis and pulmonary embolism

A blood clot that forms in the deep veins of the lower limbs can cause a fatal pulmonary embolism if they enter the lungs.

How do fish breathe?

Blood vessels in fishes' gills absorb oxygen and release carbon dioxide.

Oxygen (O₂) (beginner)

A colourless, odourless gas, an important component of the atmosphere, indispensable to sustain terrestrial life.

The bones of the thorax

The ribs, the sternum and the spinal column form the skeleton of the chest.

The heart

The heart is the central pump of the cardiovascular system beating several billion times over our lifetime.

The human blood

Human blood consists of blood cells and plasma.

The upper gastrointestinal tract

During swallowing food travels from the mouth cavity into the stomach.

The urinary system

The urinary system serves for the removal of harmful and useless materials from the body.

Carbon dioxide (CO₂) (intermediate)

Colourless, odourless, heavier-than-air gas. Necessary for the photosynthesis of plants.

Oxygen (O₂) (intermediate)

A colourless, odourless gas, an important component of the atmosphere, indispensable to sustain terrestrial life.

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