enviromental concerns vocab Flashcards
hyperthermia
elevated body temperature
conductive heat exchange
physical contact with other objects can result I either a heat loss or gain
convective heat exchange
occurs when a mass of either air or water moves around an individual
radiant heat exchange
from sunshine, causes an increase in body temp
evaporative heat loss
sweat glands in skin allow water to be transported to the surface where it is evaporated
WBGT
universal wet bulb global temperature
WBGT= 0.1 x DBT + o.7 x WBT + GT x 0.2
Syncope
collapse
Heat Rash
a condition in which obstruction causes leakage of sweat into the deeper layers of the epidermis, provoking a local inflammatory reaction giving rise to the typical appearance of redness and larger blister-like lesions.
Heat Cramps
muscle spasm that occurs most commonly in the calf; related to loss of water
Heat Exhaustion
prolonged sweating leading to dehydration and an inability to sustain adequate cardiac output
Heat stroke
thermoregulatory failure of sudden onset
Chilblains
a painful, itching swelling of skin, typically on the hands or feet
Superficial frostbite
doesn’t damage skin permanently, turns skin white or pale
deep frostbite
muscle, tendons, blood vessels, and nerves all freeze
Acclimation
process in which an individual organism adjusts to a gradual change in the environment
