These 10 animal facts will amaze you. A cavity wall consists of two separate walls that have been built closely together with a space in between them. Each of these walls can be constructed of a different type of masonry, such as brick or concrete, or from other materials.
The CPK blood test is a laboratory test that measures creatine phosphokinase (CPK), which is one of the enzymes found in the brain, heart, and skeletal muscles. This is a useful test for helping doctors to diagnose problems such as muscle damage, heart attack, and related conditions. slide 1 of 4.
Creatine kinase (CK) is an enzyme found in the heart, brain, and skeletal muscle. High amounts of CK are released into the blood when there is muscle damage. A CK blood test may be used to detect inflammation of muscles (myositis) or muscle damage due to muscle disorders (myopathies).