Which of the following portions of the ECG represents ventricular repolarization?
A. The P-R interval
B. The QRS complex
C. The P-R segment
D. The T wave
E. The P wave
Answer: D
You might also like to view...
Match the following:
A) Type I cells B) Type II cells C) Respiratory bronchioles D) Alveolar duct E) Segmental bronchi 1) No exchange of gases occurs here. 2) Secrete a fluid containing surfactant. 3) Where the respiratory zone of the lungs begins. 4) Composed of simple squamous epithelium. 5) Terminates in alveoli. 6) Composed of cuboidal cells. 7) The respiratory membrane is composed of fused basement membrane of the capillary walls and ________.
From where do parasympathetic preganglionic neurons originate?
A. Brainstem B. Sacral region of the spinal cord C. Thoracic and lumbar region of the spinal cord D. Brainstem and sacral region of the spinal cord
The blood pigment ________ imparts a pinkish hue to the skin.
Fill in the blank(s) with the appropriate word(s).
Which of the following organs are housed in the mediastinum?
A. Spleen B. Lungs C. Esophagus D. Kidneys