The central nervous system consists of the brain and the spinal cord, the peripheral nervous system consists of nerves and ganglia.
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The spinal cord is the part of the central nervous system running inside the spinal column from which spinal nerves branch out.
The main parts of the human brain are the brain stem, the cerebellum, the diencephalon, and the cerebrum, which is divided into lobes.
The main parts of the human brain are the brain stem, the cerebellum, the diencephalon, and the cerebrum.
This animation demonstrates the internal structure of the brain.
Producing speech requires the synchronised operation of several cortical centres.
The reflex triggered by the stretching of the thigh extensor muscle is the patellar reflex.
The withdrawal reflex is a spinal reflex that ensures moving away from potentially damaging stimuli.
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.
Systemic circulation carries oxygenated blood from the heart to the body, while pulmonary circulation carries oxygenated blood from the lungs to the heart.
The inability to differentiate certain shades of colour is called colour vision deficiency.
Connective tissues include loose and dense connective tissues, adipose tissue, blood, tendon and bone tissue.
Glands of the endocrine system secrete hormones into the blood.
This animation introduces the most important systems of the human body.
The Hypothalamic-pituitary axis is the regulating centre of our endocrine system.
The limbic system plays an important role in forming emotions and in learning.
The arms are moved by flexor and extensor muscles.
Neurons are cells specialised for transmitting electric signals.
Neurons transmit electrical signals via chemical and electrical synapses.
The heart is the central pump of the cardiovascular system beating several billion times over our lifetime.
This scene summarizes the main organs of the human body.
This animation demonstrates the fine molecular structure and mechanism of muscles.
During the evolution of vertebrates the relative development of brain areas has changed.
This animation introduces body parts on a male anatomical model.
This animation introduces the most important organ systems of the human body.
This animation demonstrates the parts of the head, the torso and the limbs.
The position and acceleration of the head is detected by the inner ear.