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Physiology 7-13
| Question | Answer |
|---|---|
| What two factors determine cardiac output? | Heart rate (HR) and stroke volume (SV) |
| What principle explains how increased venous return increases stroke volume? | The Frank–Starling Law of the Heart |
| Where does external respiration occur? | Between alveoli and pulmonary capillaries |
| What protein carries most oxygen in the blood? | Hemoglobin |
| What structure in the nephron is responsible for filtration? | The glomerulus and Bowman's capsule |
| How does ADH influence water balance? | It increases water reabsorption in the collecting ducts to conserve water |
| What does aldosterone regulate in the kidneys? | Sodium reabsorption and potassium excretion |
| How do the lungs help regulate blood pH? | By adjusting the rate of CO₂ exhalation |
| Which organ produces amylase, lipase, and proteases for digestion? | The pancreas |
| What is the primary hormone that lowers blood glucose levels? | Insulin |