The human sensory system is more complex than previously thought, according to a new study and published in he journal, "Pain". The sensory network is located throughout the human blood vessels and sweat glands. The skin has many different nerve endings that distinguish between different temperatures, types of mechanical contact (vibrations, movement and etc). The new research indicates that these nerve endings appear on blood vessels and sweat glands as well. Yet there is another type of mental sensory feedback which remains as a mystery.
Reference:
Bowsher et al. Absence of pain with hyperhidrosis: A new syndrome where vascular afferents may mediate cutaneous sensation. Pain, 2009; 147 (1-3): 287 DOI: 10.1016/j.pain.2009.09.007
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