In an ECG pattern, the P wave is caused by
A. depolarization of atrial muscle fibers.
B. depolarization of ventricular muscle fibers.
C. repolarization of ventricular muscle fibers.
D. repolarization of atrial muscle fibers.
Answer: A
Anatomy & Physiology
You might also like to view...
The control of calcitonin excretion is an example of direct ________ regulation
A) endocrine B) pancreatic C) homeostatic D) hepatic E) vascular
Anatomy & Physiology
The ________ vein is a deep vein that ascends along the medial side of the forearm
A) radial B) ulnar C) cephalic D) basilic E) brachial
Anatomy & Physiology
The cessation of bleeding is specifically called ________.
A. platelet plug formation B. coagulation C. hemostasis D. a vascular spasm E. homeostasis
Anatomy & Physiology
The amount of mobility at a given joint is its range of .
Anatomy & Physiology