Why is atrial repolarization not illustrated on an ECG?
A) Only ventricles repolarize.
B) It is obscured by the T wave.
C) Ventricular repolarization occurs at the same time and is much stronger.
D) The QRS complex masks it.
E) It is illustrated as the P wave.
D) The QRS complex masks it.
You might also like to view...
The nuclei of the thalamus that project sensory information to the primary sensory cortex of the cerebrum belong to the ________ group.
Fill in the blank(s) with the appropriate word(s).
The major movement produced during quiet breathing is accomplished by the ________.
A. transverses thoracis B. diaphragm C. internal intercostals D. external intercostals E. scalenes
The central canal of an osteon contains
A) bone marrow. B) osteocytes. C) concentric lamellae. D) blood vessels. E) lacunae.
Articular cartilage is composed of what type of cartilage?
a. Elastic b. Hyaline c. Fibrocartilage