Name: 49. Which of the following blood a. Capillary b. Aorta c. Vena cava d. Art
ID: 3505991 • Letter: N
Question
Name: 49. Which of the following blood a. Capillary b. Aorta c. Vena cava d. Arteriole vessels has the largest total cross-sectional area? 50. The pulse in the wrist is felt over which artery? a. Radial b. Brachial c. Ulnar d. Axillary Which of the following arteries is not one of the six major pressure points used to stop arterial bleeding? a. Brachial b. Femoral c. Subclavian d. Axillary 51. 52. Depolarization of the ventricles is: clearly depicted by the QRS complex. b. a. masked by the massive ventricular depolarization. masked by the massive ventricular repolarization. c. d. none of the above. The blood in the subclavian vein of the chest had a Pi of 15 mm Hg. For the blood to flow back t the heart, the P2 in the superior vena cava: a. would have to be greater than 25. b. would have to be between 15 and 25. c. would have to be less than 15. d. could be at any value. 53. Which of the following statements is true? a. Stimulation by the vagus nerve slows the heart rate. b. Stimulation by the cardiac nerve slows the heart rate. c. Parasympathetic stimulation occurs through the cardiac nerve. d. Both B and C are true. 54. 55. Which of the following is not part of the vasomotor control mechanism? The vasoconstrictor center in the medulla a. Sympathetic stimulation of the heart to increase cardiac output All of the above are part of the vasomotor control mechanism. c. d.Explanation / Answer
49) The correct option is a. Capillaries.
Capillaries has the highest or largest total cross-sectional area.
50) The correct option is a. Radial.
The radial pulse is felt on the wrist just under the thumb. The radial artery is close to the skin and compressed by the fingers. This artery permits the pulse to be felt and can be measured.
51) The correct option is d. axillary.
There are six important pressure points, which can be used to stop arterial bleeding:
Temporal artery, Facial artery, Carotid artery, Subclavian artery, Brachial artery and Femoral artery.
52) The correct option is a. clearly depicted by the QRS complex.
Depolarization of the ventricles is represented by the QRS complex on an electrocardiogram .
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