What name is given to a bundle of muscle fibers? - answer fascicle
Aerobic ATP production within the cell occurs in which of the following cellular
organelles? - answer mitochondria
Which of the following is the thick myofilament? – answer myosin
Which of the following types of muscle action occurs when, despite attempting to
shorten, the muscle lengthens? - answer eccentric
true or false, Delayed-onset muscle soreness is caused primarily by an accumulation of
lactic acid. - answerfalse
Which of the following senses a change in the length of skeletal muscle? -
answermuscle spindle
In the sliding filament theory, which neurotransmitter is released in response to an
action potential at the neuromuscular junction? - answeracetylcholine
In which of the following muscle actions does a muscle shorten while contracting? -
answerconcentric
What is the approximate pH of human blood at rest? - answer7.4
Which of the following is used by the body as a pH buffer? - answerbicarbonate
The heart is composed of how many chambers? - answer4
Which of the following applies only to cardiac muscle cells and not skeletal muscle
cells? - answersingle nucleus
The electrical conduction system of the heart begins with which aspect? -
answersinoatrial node
Which of the following components of an electrocardiogram represents atrial
depolarization? - answerP-wave
With the exception of pulmonary blood vessels, which of the following exclusively carry
blood away from the heart? - answerarteries
, Which of the following terms is used to describe the heart being in a period of
relaxation? - answerdiastole
Which of the following equations represents cardiac output (CO)? - answerCO = stroke
volume × heart rate
Which of the following would be considered catabolic? - answerbreakdown of glycogen
to glucose
Which of the following would be considered anabolic? - answersynthesis of protein from
amino acids
Which of the following defines metabolism? - answersum of all anabolic and catabolic
reactions
true or false, Lactic acid is primarily responsible for muscular fatigue. - answerfalse
Approximately how long does it take the body to clear increased concentrations of blood
lactate following intense exercise? - answer1 hour
Which of the following energy systems is the primary source of energy at rest and
during aerobic activities? - answeroxidative
Which of the following energy systems has the highest rate of ATP production? -
answerphosphagen
Which of the following is incorrect regarding levers? - answerJoints in the human body
are predominantly second-class levers.
Which of the following is not an ability of muscle tissue? - answergenerating a pushing
force
true or false, Resistance training cannot change a muscle's architecture. - answertrue
Which of the following is the best example of an open chain exercise? - answerstanding
barbell curl
Which of the following is a prime mover for flexion of the hip? - answerrectus femoris
Which of the following is incorrect regarding the use of heavy metal chains on barbells?
- answerThe chains provide a greater resistance at the weakest part of the range of
motion.
Which of the following is incorrect regarding progressive overload? - answersuggests
too much exercise has been performed