Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Ex Phys Exam 3
| Question | Answer |
|---|---|
| Humans, as well as most mammals are characterized as.... | homeotherms |
| Homeotherms internal body temperature is driven primarily by | metabolism |
| You are exercising on a sunny day where the ambient temperature is 74 F, what is the primary means by which you may increase core temp? | metabolism |
| The method for measuring all aspects of thermal balance, developed for the US marines, which derives a single effective temp is referred to as | wet bulb thermometer |
| What four specific aspects of the environment are measured by the WBGT? | radiation, convection, evaporation, and ambient temperature |
| Common to much of the US is the effect we refer to as windchill, which can provide a "feels like" temp far less than the air temp. This common phenomenon is due to heat loss through... | convection |
| the body's heating and cooling mechanisms are activated by the | hypothalamus |
| during heavy exercise in a hot environment, there is competition for blood supply between the.... | skin and muscle |
| upon acute exposure to exercise in a hyperthermic environment that power output declined, this is referred to as... | fatigue |
| What increases during submaximal exercise upon acute exposure to a hyperthermic environment | heart rate, cardiac output, blood lactate |
| the single most important adaptation that occurs following chronic exposure to exercise in a warm environment is an increase in | plasma volume |
| According to ____________________, PO2 decreases as a function of increasing altitude, due to the decrease in barometric pressure | Dalton's Law |
| According to Dalton's Law, _______ decreases as a function of increasing altitude, due to the decrease in __________ | PO2, barometric pressure |
| upon acute exposure to altitude the lung responds quite dramatically; there is an increase in..... | Ve, TV, breathing frequency, Hb binding |
| Upon acute exposure to altitude, the lung responds quite dramatically in an attempt to increase | P^O2 |
| The single most important adaptation that occurs following weeks of altitude exposure is an increase in.... | red blood cells |
| describe in one sentence running at the same absolute speed at 7mph, at sea level and upon acute exposure to altitude | running at 7mph is a greater relative percent of VO2max upon acute altitude exposure |
| in sporting events where performance can be compared, world class mall athletes generally perform better than world-class female athletes by approximately | 10% |
| why do men perform better than women? | increased body fat/weight penalty, lower red blood volume, smaller cardiac output |
| a woman's increase in muscle mass with resistance training is generally __________ than seen in men | smaller than |
| the primary cause of secondary amenorrhea in female athletes appears to be | a prolonged energy defecit |
| true or false: women experience the same relative increase in maximal oxygen uptake as do men with cardiorespiratory endurance training | true |
| true or false:the "romance period" of the marathon can be seen for men, but not for women | false |
| true or false: the globalization of the marathon resulted in increased diversity of athlete's participating | true |
| the primary means to, for humans, to increase core body temp is... | metabolism |
| the primary means for humans to lose body heat at rest is | radiation |
| the primary means for humans to lose heat during exercise is.. | evaporation |
| the primary means for humans to gain heat during exercise is ____________ | metabolism |
| What variable of interest is elevated when humans are exposed to a hyperthermic environment | heart rate |
| true or false: humans adapt to hypothermic environment | false |
| true or false: cycling at 150W; there is no effect of acute heat exposure on cardiac output | false |
| the radiator fluid in humans | blood |
| the primary limiting factor during exercise in a hyperthermic environment is | blood volume |
| the most important adaptation following repeated exposure to a warm environment is an increase in | plasma volume |
| name two specific organs that are involved in repeated exposure to a warm environment | kidneys and liver |
| following an adaptation to a hyperthermic environment we sweat sooner; sooner in terms of what? | rise in core temperature |
| what specific organ has been reset when we sweat sooner? | hypothalamus |
| as altitude increases ________ decreases | PO2; barometric pressure |
| when PO2/barometric pressure decreases, _________ decreases | VO2max; PO2 |
| true or false: upon acute exposure to altitude, Q is increased | true |
| true or false: upon acute exposure to altitude, maximal Q is increased | false |
| true or false: upon acute exposure to altitude, blood lactate is increased | true |
| true or false: upon acute exposure to altitude, Ve is increased | true |
| what is the primary limiting factor during exercise in a hypobaric/hypoxic environment? | oxygen |
| the most important adaptation following repeated exposure to a hypobaric/hypoxic is an increase in | red blood cells |
| the hormone that stimulates the change in red blood cells is | Epo |
| Epo is secreted by | the kidney |
| an organism whose internal temperature varies considerably | poikilotherms |
Created by:
elyk01
Popular Physiology sets