Which of the following is NOT observed during space flight? (select all that are correct, even if it is only one answer):Each correct answer will score partial points, each incorrect answer will score an equivalent deductionGroup of answer choicesDecrease in heart rateDecrease in heart sizeDecrease in muscle protein synthesisDecrease in aerobic capacity

Which of the following likely contributes to muscle loss during space flight? (select all that are correct, even if it is only one answer):Each correct answer will score partial points, each incorrect answer will score an equivalent deductionGroup of answer choicesDecrease in protein synthesis in microgravityDecrease in myoblast activity in microgravityDecrease reactive force resulting in lower contractile force required in microgravityDecrease in osteocyte activity in microgravity

Following Jessica Meir’s 205 days on the International Space Station (ISS), which of the following might you expect to find in her post-flight test?(select all that are correct, even if it is only one answer): Each correct answer will score partial points, each incorrect answer will score an equivalent deductionGroup of answer choicesIncrease distensibility of the carotid arteryIncrease bone mineral densityIncrease sympathetic nerve activityIncrease pulse wave transit timeDecrease in heart sizeAltered shape of the eye and increase in choroid thicknessIncrease intraocular pressureDecrease in total body mass

Which of the following statement is correct in relation to high G manoeuvres? (select all that are correct, even if it is only one answer, even if it is only one answer):Each correct answer will score partial points, each incorrect answer will score an equivalent deductionGroup of answer choicesGreater muscle contraction and strength is required for movement in high G.Prolonged high G manoeuvres can cause reduced gas exchange.Untrained individuals cannot tolerant G force above 1g and will immediately black out.High G manoeuvres can cause black out due to the reduced blood flow to the brain.

Microgravity results in numerous physiological changes in astronauts. Which of the following is commonly observed in astronauts and cosmonauts? (select all that are correct, even if it is only one answer):Each correct answer will score partial points, each incorrect answer will score an equivalent deductionGroup of answer choicesMaintenance of core and postural muscle with exerciseReduction in plasma volume can results in decrease in diuresisFluid shift to the core and head can result in ‘puffy’ facesThere is an increased risk of kidney stones in astronauts due to bone resorption

elect all that applyWhich structural proteins make up more than a third of the body protein? (Multiple select question.fibrinactincollagenmyosin