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The heart

The heart

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

Biology

คำหลัก

heart, atriums, ventricle, heart valves, cardiac muscle, heart sound, pulse, coronary artery, vascular system, vein, aortic arch, pulmonary artery, cardiovascular system, systemic circulation, pulmonary circulation, blood flow, heart string, bicuspid valve, organ, closed circulatory system, human, biology

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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.

The human blood

Human blood consists of blood cells and plasma.

Respiratory system

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

The bones of the thorax

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

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Adrenaline (advanced)

Adrenaline, also known as epinephrine, is a hormone produced in our body in stressful situations and plays an important role in the fight-or-flight response.

Anatomy of the spinal cord

The spinal cord is the part of the central nervous system running inside the spinal column from which spinal nerves branch out.

Blood vessels

The three main types of blood vessels in the human body are the arteries, the veins, and the capillaries.

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.

Heart attack

The cause of a heart attack is the blockage of a coronary artery. It is one the most common causes of death.

Human muscles

Skeletal muscles form the active part of the locomotor system: they move the bones they are attached to.

Lymphatic system

Lymph vessels carry lymph to the blood vessels, while lymph nodes are integral parts of the immune system.

Muscle tissues

The three types of muscle found in the human body are the smooth, the striated and the cardiac muscle.

Nervous system

The central nervous system consists of the brain and the spinal cord, the peripheral nervous system consists of nerves and ganglia.

Structure of skeletal muscles

This animation demonstrates the fine molecular structure and mechanism of muscles.

The anatomy of the heart

This scene presents the location, anatomy and functioning of the central organ of the human circulatory system.

The human brain

The main parts of the human brain are the brain stem, the cerebellum, the diencephalon, and the cerebrum.

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.

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