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Queen I Agamegwa
SCI221-07 Human Physiology with Lab
| Question | Answer |
|---|---|
| What does ADH do in the kidneys? | It increases water reabsorption in the collecting ducts, reducing urine output. |
| What organ produces ANP? | The heart (atrium), in response to high blood volume. |
| What is glomerular filtration? | The process by which the kidney filters blood plasma into the nephron. |
| How does alcohol affect ADH levels? | Alcohol inhibits ADH release, causing increase urination and dehydration. |
| What system includes angiotensin II and aldosterone? | The Renin-Angiotensin-Aldosterone system (RAAS). |
| What effect does ANP have on blood pressure? | ANP lowers blood pressure by promoting sodium and water excretion. |
| Which hormone lowers calcium levels in the blood? | Calcitonin. |
| Which hormone helps retain calcium and stimulates osteoclast activity? | Parathyroid hormone (PTH) |
| What is the normal range of blood pH | 7.35-7.45 |
| What percentage of body is typically made of water? | About 60% for the average adult. |
| What stimulates thirst in the brain? | Activation of osmoreceptors in the hypothalamus due to increase blood osmolarity. |
| What is the function of the urinary bladder? | It stores urine before excretion. |
| What structure connects the kidney to the urinary bladder? | The ureter. |