Severe injury to skeletal muscle can be significant enough to raise CK-MB levels above normal, but such injury doesnât usually cause a high relative index. If your doctor suspects injury to both heart muscle and skeletal muscle, troponin is a more accurate test for identifying a heart attack.
The radial smooth muscle layer (dilator pupillae) is responsible for dilating the pupil. Source(s): http://en.wikipedia.org/wiki/Iris_%28ana...http://en.wikipedia.org/wiki/Dilator_pup...LaughingMan Â· 8 years ago.he iris is composed of two smooth muscle layers, arranged radially and circularly.
Regarding pupil dilation, on the first day the patient had mydriasis, but since day 15 she had myosis. Studies of the biological effects of opium and opioid have shown that the opioid possess the analgesia, myosis, bradycardia, sedation, hypothermia and lost of sensitivity. The main features affecting the ocular system include eye lens subluxation and severe myosis.