C
Cardiac arrest - A medical emergency with absent or inadequate contractions of the heart that immediately causes bodywide circulatory failure. The signs and symptoms include loss of consciousness; rapid shallow breathing progressing to apnea (absence of breathing); profoundly low blood pressure (hypotension) with no pulses that can be felt over major arteries; and no heart sounds.Chronic cryptic tonsillitis - Cryptic in the case of the tonsils refers simply to the tonsillar crypts which are little pit-like depressions in the tonsils. The word "cryptic" comes from the Greek "kryptos" meaning hidden or concealed. Thus, cryptic tonsillitis may be concealed because it is down in the pits (of the tonsil) and may not be causing apparent symptoms.
Crypts - In anatomy, a crypt is variously a blind alley, a tube with no exit, a depression, or a pit -- in an otherwise fairly flat surface. Cryptic in the case of the tonsils refer to the tonsillar crypts, which are little pit-like depressions in the tonsils.