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The central nervous system consists of the brain and the spinal cord, the peripheral...
Neurons are cells specialized for transmitting electric signals.
The reflex triggered by the stretching of the thigh extensor muscle is the patellar reflex.
Humans have 4 types of teeth: incisors, canines, premolars and molars.
The three types of muscle found in the human body are the smooth, the striated and the...
Smoking severely damages the respiratory system, it may cause COPD or lung cancer.
The urinary system serves for the removal of harmful and useless materials from the body.
Bones of the lower limbs are connected to the trunk by the pelvis.