Myelopathy myo-lop-a-thee. Myel ['spinal cord'] opathy ['problem'] is a disease of the spinal cord. This can be distingiushed from a radiculopathy or neuropathy based on the symptoms and findings during a doctors examination. Myelopathy is therefore a descriptive term and many different disease processes can cause it.
Taekwondo is a martial art that was developed by the Koreans with tactical preferences for kicks over hands (although both are included), while Karate is a Japanese development of hand fighting which was refined in Okinawa, and likely brought there from early hand fighting in China.
The Kukkiwon/WTF-style of taekwondo generally recognizes 10 geup grades before black belt, and yet there are only 8 forms in the Taegeuk series. For this reason many Kukkiwon/WTF-style schools will incorporate two Kibon forms into their curriculum, so that there's one new form to learn at each geup level.