Anatomy of the small intestine

The longest part of the digestive system, where most of the digestion and absorption takes place.

Connective tissues

Connective tissues include loose and dense connective tissues, adipose tissue, blood, tendon and bone tissue.

The human brain

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

Parts of the human brain

The main parts of the human brain are the brain stem, the cerebellum, the diencephalon, and the cerebrum, which is divided into lobes.

Euglena viridis

Unicellular eukaryotes living in freshwaters, capable of feeding autotrophically and heterotrophically.

The sense of balance

The position and acceleration of the head is detected by the inner ear.

Nose, the mechanism of smelling

Olfactory receptors produce electric signals when stimulated by odours.

Muscle tissues

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

Structure of skeletal muscles

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

Synaptic transmission

Neurons transmit electrical signals via chemical and electrical synapses.

Edison’s light bulb

The American electrical engineer Edison invented the incandescent light bulb in 1879, which changed our everyday life.

Middle ear infection, otitis media

This animation shows the symptoms and treatment of secretory otitis media.

The anatomy of leaves

This animation presents the main types of leaves and the differences between monocot and dicot leaves.

Respiratory system

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

Transparency

This animation explains transparency and opacity, the principle of radiography, and the light-absorbing properties of materials.

Newton’s Laws of Motion

This animation demonstrates Sir Isaac Newton's three laws of motion that laid the foundation for classical mechanics.

Atmospheric circulation

The difference between the temperature of the polar and equatorial zones causes atmospheric circulation which is affected by a number of factors, including...

ISS

The International Space Station is a habitable satellite built with the cooperation of 16 countries.

The human eye

The eye is one of our most important sense organs. When stimulated by light, electric impulses are produced by its receptors.

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