What is happening in the heart when a P wave is recorded on an ECG?
A. The ventricles are depolarizing.
B. The atria are depolarizing.
C. The ventricles are repolarizing.
D. The ventricles are contracting.
E. Ventricular systole is occurring.
B. The atria are depolarizing.
Anatomy & Physiology
You might also like to view...
Explain what dynamic equilibrium is and how it affects homeostasis
Anatomy & Physiology
Contrast the primary humoral response with the secondary humoral response
What will be an ideal response?
Anatomy & Physiology
________ are the functional units of nerve tissue.
A. Neurons B. Neuroglia C. Dendrites D. Gliomas
Anatomy & Physiology
Molecules that attract immune cells are known as _________.
A) interferons. B) opsonins. C) antigens. D) lysozymes. E) chemotaxins.
Anatomy & Physiology