#Question id: 10973
#7. System Physiology – Animal
An 11-year-old premenstrual female presents with a painful knee after mild trauma. Upon further evaluation you observe soft tissue bruises. The child is an orphan and there is no family history. The foster mother reports no other problems. The aPTT is prolonged and the PT is normal. A complete hematologic workup would yield
#Question id: 10976
#7. System Physiology – Animal
In a resting adult, the typical ventricular ejection fraction has what value?
#Question id: 10977
#7. System Physiology – Animal
A 60-year-old man’s EKG shows that he has an R-R interval of 0.55 sec. Which of the following best explains his condition?
#Question id: 10978
#7. System Physiology – Animal
Which of the following events occurs at the end of the period of ventricular ejection?
#Question id: 10979
#7. System Physiology – Animal
Which of the following conditions at the A-V node will cause a decrease in heart rate?
#Question id: 10980
#7. System Physiology – Animal
Sympathetic stimulation of the heart