Glossary C

Continuous Positive Airway Pressure (CPAP) therapy is a common and effective treatment for obstructive sleep apnea (OSA), a condition where breathing repeatedly stops and starts during sleep due to airway blockages. CPAP devices deliver a steady stream of air through a mask, keeping the airway open and ensuring uninterrupted breathing throughout the night. This therapy helps reduce snoring, improves sleep quality, and prevents complications associated with untreated sleep apnea, such as high blood pressure, heart disease, and daytime fatigue. While CPAP therapy is highly effective, some users may need time to adjust to wearing the mask and maintaining compliance. Advances in CPAP technology, including quieter machines and customized mask options, have made the treatment more comfortable and user-friendly. For those diagnosed with sleep apnea, CPAP therapy can significantly improve overall health, energy levels, and quality of life.

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CR is the abbreviations of Conditional or Conditioned response, the response that comes to be made to the conditioned stimulus as a result of classical conditioning.

CR (Conditioned response) refers to the learned response to a conditioned stimulus (CS); a learned reaction to a conditioned stimulus that occurs because of previous conditioning. CR, moreover, is a response evoked by a conditioned stimulus after it has been paired with an unconditioned stimulus

Crabs refers to a parasitic STI that infests the pubic hair and can be transmitted through sexual contact ; tiny lice that attach themselves to the base of pubic hairs and cause itching Crabs is also known as Pediculosis pubis or Pubic lice.

Crack is term used for a freebase cocaine produced by mixing cocaine salt with baking soda and water. The solution is then heated, resulting in brittle sheets of cocaine that are "cracked" into small smokable chunks or "rocks".

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Crack cocaine refers to a crystallized form of cocaine that is usually smoked.

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Cranial nerves refers to the group of 12 pairs of nerves originating from the undersurface of the brain and exiting from the cranial cavity through skull openings. Cranial nerves supply specific motor and sensory function to the head and face.

Crapehanger refers to a morose, gloomy, or pessimistic person.

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