Examlex
Which of the following cannot act as antigen-presenting cells?
Shivering
An involuntary response to cold involving rapid, rhythmic muscle contractions to generate heat and increase body temperature.
Dysrhythmia
An abnormality in a physiological rhythm, especially in the activity of the brain or heart.
Ventricles
The two lower chambers of the heart that receive blood from the atria above them and pump it out to the lungs and body, crucial for the circulatory system.
PVCs
Premature Ventricular Contractions, early heartbeats originating from the ventricles, causing irregular heart rhythms.
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