Questions (3rd Edition Textbook)
What is the name of the connective tissue that surrounds skeletal muscle?
A. epimysium
B. endomysium
C. perimysium
D. fascicle - answerA
How many neuromuscular junctions does each muscle fiber have?
A. 1
B. 2
C. 3
D. 4 - answerA
Which of the following branches of the nervous system is responsible for activating
skeletal muscles?
A. sensory
B. autonominc
C. afferent
D. somatic - answerD
Which division of the skeleton contains the skull and vertebral column?
A. axial skeleton C. central skeleton
B. appendicular skeleton D. peripheral skeleton - answerA
Which of the following connective tissues connects muscle to bone?
A. ligament C. cartilage
B. tendon D. collagen - answerB
What is the approximate pH of human blood at rest?
A. 6.6
B. 7.1
C. 7.4
D. 7.9 - answerC
The heart is composed of how many chambers?
A. 1
B. 2
C. 3
D. 4 - answerD
,Which of the following occur to facilitate a redistribution of blood flow at the onset of
physical exercise?
I. skeletal muscle arteriole constriction III. nonactive organ arteriole constriction
II. skeletal muscle arteriole dilation IV. nonactive organ arteriole dilation
A. I and III only C. II and III only
B. II and IV only D. I and IV only - answerC
Which of the following refers to the amount of air moving into and out of the lungs at rest
during normal
breathing?
A. vital capacity C. residual volume
B. tidal volume D. functional residual capacity - answerB
Which of the following is incorrect regarding maximal oxygen uptake (VO2max)?
A. It relates to the heart's maximal ability to eject blood (maximal Q)
B. It represents the maximal ability of skeletal muscle to extract oxygen.
C. It represents the ability to use maximal a-vO2 difference to aerobically produce
energy
D. Higher VO2max values are associated with an increased risk of cardiovascular
disease, morbidity, and mortality. - answerD
Which of the following is not a characteristic of bioenergetics?
A. breakdown of food C. conversion of mechanical energy to chemical energy
B. conversion of chemical energy to mechanical energy D. breakdown of chemical
bonds - answerC
How many molecules of ATP are produced from glycolysis of one molecule of glucose
in blood?
A. 1 C. 3
B. 2 D. 4 - answerB
Which of the following energy systems is the primary source of energy at rest and
during aerobic activities?
A. phosphagen system C. oxidative
B. anaerobic glycolysis D. anaerobic lipolysis - answerC
Glycogen becomes the preferred fuel source at intensities above about _____ of
maximal oxygen uptake.
A. 30%-40% C. 80%-90%
B. 60%-75% D. 90%-100% - answerB
When relying on the slower ATP-producing energy systems, ATP can be produced as
long as the body has a good supply of: ___ _
I. muscle glycogen III. protein
II. fatty acids IV. creatine phosphate
A. I only C. I, II and III only
, B. III and IV only D. II and IV only - answerC
In biomechanics, the term body may refer to which of the following?
I. the human body
II. limb segment
III. piece of chalk
A. I only C. III only
B. II only D. I, II, and III - answerD
Which of the following is the equation that represents work?
A. force x distance moved C. force - distance moved
B. force + distance moved D. force/ distance moved - answerA
Which of the following is incorrect regarding rate of force development?
A. It is the ratio of the change in force over the change in time
B. If rate of force development is high power is also high.
C. It is time rate of change of force.
D. It can be improved with resistance training - answerB
Which of the following is incorrect regarding the use of heavy metal chains on barbells?
A. They can be used with linear movements.
B. The chains add resistance throughout the
range of motion.
C. The chains provide a greater resistance at the weakest part of the range of motion.
D. Chains can be used in exercises such as
the squat or bench press. - answerC
With water resistance, if the surface area is ------, the exercise will be -------
I. smaller; easier III. smaller; harder
II. larger; easier IV. larger; harder
A. I only C. I and IV only
B. II only D. II and III only - answerC
Which of the following is incorrect regarding stress responses to resistance exercise?
A. can lead to increases in bone mineral density
B. is a negative response that inhibits
adaptation
C. leads to muscle growth
D. results in increased strength - answerB
Which of the following is not a steroid hormone?
A. testosterone
B. growth hormone
C. estrogen
D. any hormone derived from cholesterol - answerB