Unit 1 B: Muscle fibres and responses quiz games for BTEC National Sport

1. 1

   What is atrophy?

   A decrease in the size of muscleAn increase in muscle fibre sizeA fall in resting heart rateA rise in capillary numbers
2. 2

   What is a training adaptation?

   A loss of fitness after stoppingA skill learned in practiceA rise in heart rate in one sessionA lasting body change from training
3. 3

   Which receptors detect changes in blood pressure?

   ThermoreceptorsProprioceptorsBaroreceptorsChemoreceptors

+ 12 more questions in the game.

1. 1

   What is meant by recruitment of motor units?

   Replacing tired fibres with new fibresMaking each fibre contract harderStimulating one unit at a faster rateBringing more motor units into action
2. 2

   What is meant by steady state during exercise?

   Heart rate falls below the resting levelHeart rate levels off as supply meets demandHeart rate is raised before the startHeart rate keeps rising
3. 3

   Which term describes the protein in red blood cells that carries oxygen?

   HaemoglobinPlasmaPlateletsMyoglobin

+ 12 more questions in the game.

1. 1

   True or false: Tidal volume increases as exercise intensity increases.

   Tidal volume increases as exercise intensity increases.
2. 2

   True or false: Minute ventilation falls as exercise intensity increases.

   Minute ventilation falls as exercise intensity increases.
3. 3

   Which nerve carries impulses that slow the sinoatrial node?

   Parasympathetic (vagus) nervePhrenic nerveHypothalamic nerveSympathetic (accelerator) nerve

+ 12 more questions in the game.

1. 1

   True or false: Regular endurance training lowers resting heart rate.

   Regular endurance training lowers resting heart rate.
2. 2

   True or false: Resting stroke volume rises with endurance training.

   Resting stroke volume rises with endurance training.
3. 3

   True or false: Long-term endurance training increases blood volume.

   Long-term endurance training increases blood volume.

+ 12 more questions in the game.

1. 1

   True or false: The skeletal muscle pump helps return blood to the heart.

   The skeletal muscle pump helps return blood to the heart.
2. 2

   Match each vessel change to where it happens.

   VasodilationVasoconstrictionVenoconstrictionVeins narrow to push blood backArterioles to muscles widenArterioles to digestive organs narrow
3. 3

   Match each venous return mechanism to how it works.

   Skeletal muscle pumpPocket valvesRespiratory pumpStop blood flowing backwardsBreathing changes pressure in the thoraxContracting muscles squeeze the veins

+ 12 more questions in the game.