Chapter 12 (Special Considerations)

Question 1

homeotherms

Answer 1

body temp stays close to set point (98.6 F)

Question 2

convection

Answer 2

movement of air/water around body to lose heat

Question 3

evaporation

Answer 3

heat released as sweat converts to gas (body loses heat, lowers body temp)

Question 4

What restricts evaporation?

Answer 4

humdity

Question 5

clothing for hot environments

Answer 5

maximize surface area where evaporation can occur, light weight (can absorb moisture)

Question 6

heat acclimatization

Answer 6

body slowly becomes used to the heat

Question 7

common heat injuries

Answer 7

heat cramps, heat exhaustion, heat stroke

Question 8

heat exhaustion leads to…

Answer 8

heat stroke

Question 9

water

Answer 9

short duration exercises in heat

Question 10

sports drink

Answer 10

long duration exercises in heat

Question 11

hypothermia

Answer 11

decline in body temp bc of cold exposure

Question 12

layering in cold environments

Answer 12

1. base layer: removes moisture, NO cotton
2. middle layer: further insulates, heavier than base
3. outer layer: protects from wind & water (hats, gloves, scarves)

Question 13

exercising in high altitudes

Answer 13

exercise intensity has to be lowered to maintain target heart rate

Question 14

Acute Mountain Sickness (AMS)

Answer 14

occurs at altitudes above 8,000 ft
- symptoms: headaches, nausea, dizziness

Question 15

ozone pollution

Answer 15

gas from sunlight & car exhaust
- can cause asthma attacks

Question 16

carbon monoxide pollution

Answer 16

fossil fuels & cigarette smoke
- lowers body’s ability to carry oxygen to body & muscles