Chapter 3 - The Human Body Flashcards
What are the main parta of the nervous system ?
The nervous system is divided into three main parts:
- Central
- Peripheral
- Autonomic
What are the body’s principal systems ?
The Nervous System
The Respiratory System
The Circulatory System
Breathing is largely governed by
The body monitoring changes in the level of carbon dioxide in the blood.
Blood Pressure:
Systolic pressure is the high value pressure when the heart contracts.
Diastolic Pressure is the low value pressure when the heart relaxes.
How long pilots shouldnt fly after donating blood ?
Pilots should not fly for 24 hours after giving blood.
What red blood cells contain ?
Red blood cells contain heamoglobin.
What is Angina caused by ?
Angina caused by insufficient blood and therefore, Oxygen reaching the heart muscle.
What does heamoglobin has an affinity for ?
Heamoglobin has an affinity for carbon monoxide 210 times greater than that for Oxygen.
If carbon monoxide poisoning is suspected, how long pilots will not fit to fly ?
Pilots will not be fit to fly again for several days.
How is a smoker feel the symtoms of hypoxia ?
A smoker will feel the symptoms of hypoxia at a lower altitude than a non smoker.
How long does it going to take to eliminate 1 unit of alcohol from the blood ?
It takes on avarage 1 hour for 1 unit of alcohol to be eliminated from the blood.
What are the accepted levels of alcohol consumption ?
The generally accepted levels of alcohol consumption beyond which significant damage may occur to the body are 21 units per week for men and 14 units per week for women.
How does increased altitute effect of alcohol consumption ?
Increased altitude will aggravate the effects of alcohol consumption.
