Question

a single painful, involuntary muscle contraction is termed a ____, but is called a ___ if the contraction persists for a longer period.
spasm, cramp
strain, sprain
sprain, myalgia
tear, sarcoma
seizure, spasm

Explanation:

A spasm is a single, involuntary, often painful muscle contraction. A cramp is a more prolonged involuntary muscle contraction. Strain and sprain are related to muscle - tendon and ligament injuries respectively. Myalgia is muscle pain. Tear is a physical damage to muscle fibers and sarcoma is a type of cancer. Seizure is related to abnormal electrical activity in the brain and not the same as a simple muscle contraction term.

Answer:

A. spasm, cramp