Microcirculation and Lymphatics — MCQs

Which of the following components are included in microcirculation?

A patient with heart failure presents with worsening peripheral edema. Which of the following mechanisms contributes most directly to this finding?

The largest component of the total peripheral resistance is due to:

Cerebral blood flow is regulated by all of the following except:

GFR is increased by all except?

Which of the following is not an effect of efferent arteriole constriction:

Which neurotransmitter primarily mediates slow synaptic transmission in the enteric nervous system?

All the following mediate their action using cAMP as second messenger except:

A 28-year-old marathon runner undergoes maximal exercise testing. At peak exercise, her oxygen consumption reaches 3600 mL/min, cardiac output is 24 L/min, and arterial oxygen content is 200 mL O2/L blood. Apply the Fick equation to determine her mixed venous oxygen content at peak exercise.

A 45-year-old sedentary man begins a supervised exercise program. After 8 weeks of training at 70% of his maximum heart rate for 30 minutes daily, his resting heart rate decreases from 80 to 65 beats per minute. His cardiac output at rest remains unchanged at 5 L/min. Apply your understanding of cardiovascular adaptations to determine what compensatory change occurred.