#Question id: 11040
#Unit 7. System Physiology – Animal
An increase in which of the following would be expected to decrease blood flow in a vessel?
#Question id: 11039
#Unit 7. System Physiology – Animal
Which blood vessel has the highest vascular resistance?
#Question id: 11038
#Unit 7. System Physiology – Animal
Which of the following substances in plasma is the major factor that contributes to plasma colloid osmotic pressure?
#Question id: 11037
#Unit 7. System Physiology – Animal
A 22-year-old man has a muscle blood flow of 250 ml/min and a hematocrit of 50. He has a mean arterial pressure of 130 mm Hg, a muscle venous pressure of 5 mm Hg, and a heart rate of 80 beats/min. Which of the following is the approximate vascular resistance in the muscle of this man?
#Question id: 11036
#Unit 7. System Physiology – Animal
Under control conditions, flow through a blood vessel is 100 ml/min under a pressure gradient of 50 mm Hg. What would be the approximate flow through the vessel after increasing the vessel diameter to four times normal, assuming that the pressure gradient was maintained at 50 mm Hg?
#Question id: 11035
#Unit 7. System Physiology – Animal
A 72-year-old man had surgery to remove an abdominal tumor. Pathohistologic studies reveal that the tumor mass contains a large number of blood vessels. An increase in which of the following is the most likely stimulus for the growth of vessels in a solid tumor?