Human Factors

1. More than ___ percent of aviation accidents and incidents are in some way related to human factors.

10

20

50

70

2. REM sleep starts 60 min after you sleep, and its cycle repeats every _____ min.

90

60

5

120

3. Which of your body’s systems is most affected by G forces?

Gastrointestinal System

Metabolic System

Circulatory System

Applied Multidimensional System

4. When considering the abnormal body, we usually think of _______, which is the medical term referring to anything that is not normal.

Pathology

Inflammation

Depression

Anatomical

5. _____ insomnia results from longer lasting stress (your company might be sold) or illness (a bad flu). This type of insomnia usually disappears in a few days, and the sleep cycle returns to normal.

Transient

Acute

Chronic

6. ______ lets a gas move from an area of high pressure to an area of lower pressure.

Barometric Pressure

Diffusion

Convection

Nitrogen

7. The most common general pathology is inflammation and is identified with the body part which is inflamed and ends with _____.

Ache

Tion

Itis

Etes

8. The organ carrying most of the workload is the ____, located in the upper right hand corner of the abdomen, partially under the lower rib cage.

Heart

Brain

Liver

Gallbladder

Kidneys

9. Linear Acceleration can occur in any change of direction without change in speed - for example, when executing a turn or when pulling out of a dive.

True

False

10. In addition to supplying the needs of the body, the _________ system allows us to participate in life's activities. It's what allows us to fly airplanes.

Circulatory

Musculoskeletal

Peripheral Nervous

Gastrointestinal

11. Negative G forces are very uncomfortable. What is the normal limit for most people?

1

2

3

4

5

12. Studies have shown that if you take a person and put him or her completely out of touch with any outside source of light or time, the body's rhythms settle around a cycle of about ______ hours.

27-28

24

20-21

25-26

13. The ______ contains much of our "gray matter," or thinking cells.

Hypothalamus

Hindbrain

Midbrain

Forebrain