What is the difference between muscle dystrophy and muscle atrophy? The difference between muscle atrophy and dystophy is that the atrophy is a wasting away of muscle due to disease or poor nutrition. Muscle dystrophy is degeneraion of musclesâ¦ or any organs in the body caused by a disease process, or it can also be caused by malnourishment.
A digraph is two letters that spell one sound. Digraphs that spell consonant sounds include the letter pairs sh, ch, th, wh, ck, ph, ng. Digraphs that spell vowel sounds include the letter pairs ai, ay, ee, ea, ie, ei, oo, ou. ow, oe, oo, ue, ey, ay, oy, oi, au, aw.
The sound of the Y is a front glide related to the sound EE (bee) and the sound of the W is a back glide related to the sound OO (boo). A good reason to include Y and W as vowels (vowel letters, actually) is that they pair with other vowel letters to create digraphs which have characteristic sounds. AY, EY, OY, AW, EW, OW.