Examlex
Which of the following cells is the most critical cell in immunity?
Arousal
A state of heightened physiological and psychological activity, involving the brain, various bodily systems, and behavior.
Asthma
A chronic inflammatory disease of the airways characterized by variable and recurring symptoms, reversible airflow obstruction, and bronchospasm.
Acetylcholine
A neurotransmitter involved in many functions including muscle movement and memory, acting as a chemical messenger in the nervous system.
CNS
The central nervous system, comprising the brain and spinal cord, which functions as the primary control center for processing and responding to neural information.
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