McqMate
| Q. |
Why does bleeding occur through the nose in high mountainous regions? |
| A. | The pressure of blood in capillaries is greater than the outside pressure |
| B. | The pressure at high altitudes is greater than that on the plains |
| C. | The blood pressure of a person increases at high altitudes |
| D. | The blood pressure fluctuates and finally decreases drastically |
| Answer» C. The blood pressure of a person increases at high altitudes | |
|
Explanation: Nose bleeds can occur at high altitudes. The bleeding may be caused by the change in air pressure associated with the change in altitude or the cold dry air common at high altitudes. No matter the cause, the symptoms and treatment of a high altitude bloody nose are the same. A nose bleed is defined as the discharge of blood from the nostrils. Stress and anxiety raises the blood pressure, complicating the nose bleed. |
|
View all MCQs in
PhysicsNo comments yet