NASM Certification
Which term refers to fibrous connective tissues that connect bone to bone and provide static and
dynamic stability as well as input to the nervous system? Select one:
a. Tendons
b. Ligaments
c. Effectors
d. Dendrites ANS: Ligaments
Which of the following is true of type I, or slow-twitch, muscle fibers?
Select one:
a. They contain more capillaries, mitochondria, and myoglobin than type II muscle fibers.
b. They are larger in size than type II muscle fibers and are referred to as white fibers.
c. They have a low oxidative capacity and fatigue quickly.
d. They are faster than type II muscle fibers to produce maximal tension. ANS: They contain more
capillaries, mitochondria, and myoglobin than type II muscle fibers.
What are sensitive to changes in tension and the rate of that change, protecting a muscle from possible
injury?
Select one:
a. Muscle spindles
b. Efferent neurons
c. Osteoclasts
d. Golgi tendon organs ANS: Golgi tendon organs
According to sliding filament theory, when does muscular contracting occur?
Select one:
a. Actin and myosin filaments slide away from each other, lengthening the sarcomere.
b. The distance from Z line to Z line is increased.
c. Myofibrils are lengthened.
d. Actin and myosin filiments slide past each other, shortening the entire sarcomere. ANS: Actin and
myosin filiments slide past each other, shortening the entire sarcomere.
What are responsible for sensing distortion in body tissues and are located in muscles, tendons,
ligaments, and joint capsules?
Select one:
a. Osmoreceptors
b. Mechanoreceptors
c. Chemoreceptors
d. Photoreceptors ANS: Mechanoreceptors
Which of the following is a characteristic of muscle spindles?
Select one:
a. They are sensitive to change in length of muscle and the rate of that change.
b. They are slow twitch, "red" muscle fibers with a high degree of mitochondria.
,c. They transmit nerve impulses from one neuron to another.
d. They provide the ability to sense the relative position of adjacent parts of the body. ANS: They are
sensitive to change in length of muscle and the rate of that change.
In the endocrine system, which of the following secretes hormones such as corticosteroids and
catecholamines in response to stress?
Select one:
a. Pineal gland
b. Hypothalamus
c. Thyroid gland
d. Adrenal gland ANS: Adrenal gland
Which mechanoreceptor helps prevent muscles from stretching too far or too fast?
Select one:
a. Ruffini endings
b. Golgi tendon organ
c. Intercalated disc
d. Muscle spindle ANS: Muscle spindle
Which of the following characteristics distinguishes type II muscle fibers from type I muscle fibers?
Select one:
a. Smaller in size
b. Decreased oxygen delivery
c. More capillaries, mitochondria, and myoglobin
d. Contractions of a longer duration ANS: Decreased oxygen delivery
Which term refers to the amount of blood pumped out of the heart with each contraction?
Select one:
a. Heart rate
b. Stroke volume
c. Radial pulse
d. Cardiac output ANS: Stroke volume
Deoxygenated blood is pumped from the right ventricle to the lungs through which of the following
vessels?
Select one:
a. Pulmonary veins
b. Aortic valve
c. Aortic arch
d. Pulmonary arteries ANS: Pulmonary arteries
Heavy breathing results in an increase in the activity level of which of the following secondary
respiratory muscles?
Select one:
a. Scalenes
b. Rectus abdominis
c. Diaphragm
d. Internal oblique ANS: Scalenes
, Arterioles branch out into vessels know as what?
Select one:
a. Veins
b. Blood vessels
c. Venules
d. Capillaries ANS: Capillaries
What may be the best measure of cardio-respiratory fitness?
Select one:
a. Stroke volume
b. Maximal lung capacity
c. Maximal oxygen consumption
d. End-diastolic volume ANS: Maximal oxygen consumption
Which of the following refers to vessels that transport blood from the capillaries toward the heart?
Select one:
a. Carotids
b. Veins
c. Arteries
d. Arterioles ANS: Veins
What term describes the number of heart beats per minute and the amount of blood pumped per beat?
Select one:
a. Blood pressure
b. Stroke volume
c. Cardiac output
d. Heart rate ANS: Cardiac output
After leaving the left ventricle, blood enters which structure?
Select one:
a. Pulmonary artery
b. Superior vena cava
c. Inferior vena cava
d. Aorta ANS: Aorta
Which of the following is true of skeletal muscle?
Select one:
a. Skeletal muscle fibers are more tightly connected than cardiac muscle fibers.
b. It is a voluntary muscle.
c. Skeletal muscle fibers are shorter than cardiac muscle fibers.
d. It is composed of intercalated discs. ANS: It is a voluntary muscle.
In which of the following structures are water and chemicals exchanged between the blood and tissues?
Select one:
a. Atrioventricular node
b. Capillaries
c. Sinoatrial node
Which term refers to fibrous connective tissues that connect bone to bone and provide static and
dynamic stability as well as input to the nervous system? Select one:
a. Tendons
b. Ligaments
c. Effectors
d. Dendrites ANS: Ligaments
Which of the following is true of type I, or slow-twitch, muscle fibers?
Select one:
a. They contain more capillaries, mitochondria, and myoglobin than type II muscle fibers.
b. They are larger in size than type II muscle fibers and are referred to as white fibers.
c. They have a low oxidative capacity and fatigue quickly.
d. They are faster than type II muscle fibers to produce maximal tension. ANS: They contain more
capillaries, mitochondria, and myoglobin than type II muscle fibers.
What are sensitive to changes in tension and the rate of that change, protecting a muscle from possible
injury?
Select one:
a. Muscle spindles
b. Efferent neurons
c. Osteoclasts
d. Golgi tendon organs ANS: Golgi tendon organs
According to sliding filament theory, when does muscular contracting occur?
Select one:
a. Actin and myosin filaments slide away from each other, lengthening the sarcomere.
b. The distance from Z line to Z line is increased.
c. Myofibrils are lengthened.
d. Actin and myosin filiments slide past each other, shortening the entire sarcomere. ANS: Actin and
myosin filiments slide past each other, shortening the entire sarcomere.
What are responsible for sensing distortion in body tissues and are located in muscles, tendons,
ligaments, and joint capsules?
Select one:
a. Osmoreceptors
b. Mechanoreceptors
c. Chemoreceptors
d. Photoreceptors ANS: Mechanoreceptors
Which of the following is a characteristic of muscle spindles?
Select one:
a. They are sensitive to change in length of muscle and the rate of that change.
b. They are slow twitch, "red" muscle fibers with a high degree of mitochondria.
,c. They transmit nerve impulses from one neuron to another.
d. They provide the ability to sense the relative position of adjacent parts of the body. ANS: They are
sensitive to change in length of muscle and the rate of that change.
In the endocrine system, which of the following secretes hormones such as corticosteroids and
catecholamines in response to stress?
Select one:
a. Pineal gland
b. Hypothalamus
c. Thyroid gland
d. Adrenal gland ANS: Adrenal gland
Which mechanoreceptor helps prevent muscles from stretching too far or too fast?
Select one:
a. Ruffini endings
b. Golgi tendon organ
c. Intercalated disc
d. Muscle spindle ANS: Muscle spindle
Which of the following characteristics distinguishes type II muscle fibers from type I muscle fibers?
Select one:
a. Smaller in size
b. Decreased oxygen delivery
c. More capillaries, mitochondria, and myoglobin
d. Contractions of a longer duration ANS: Decreased oxygen delivery
Which term refers to the amount of blood pumped out of the heart with each contraction?
Select one:
a. Heart rate
b. Stroke volume
c. Radial pulse
d. Cardiac output ANS: Stroke volume
Deoxygenated blood is pumped from the right ventricle to the lungs through which of the following
vessels?
Select one:
a. Pulmonary veins
b. Aortic valve
c. Aortic arch
d. Pulmonary arteries ANS: Pulmonary arteries
Heavy breathing results in an increase in the activity level of which of the following secondary
respiratory muscles?
Select one:
a. Scalenes
b. Rectus abdominis
c. Diaphragm
d. Internal oblique ANS: Scalenes
, Arterioles branch out into vessels know as what?
Select one:
a. Veins
b. Blood vessels
c. Venules
d. Capillaries ANS: Capillaries
What may be the best measure of cardio-respiratory fitness?
Select one:
a. Stroke volume
b. Maximal lung capacity
c. Maximal oxygen consumption
d. End-diastolic volume ANS: Maximal oxygen consumption
Which of the following refers to vessels that transport blood from the capillaries toward the heart?
Select one:
a. Carotids
b. Veins
c. Arteries
d. Arterioles ANS: Veins
What term describes the number of heart beats per minute and the amount of blood pumped per beat?
Select one:
a. Blood pressure
b. Stroke volume
c. Cardiac output
d. Heart rate ANS: Cardiac output
After leaving the left ventricle, blood enters which structure?
Select one:
a. Pulmonary artery
b. Superior vena cava
c. Inferior vena cava
d. Aorta ANS: Aorta
Which of the following is true of skeletal muscle?
Select one:
a. Skeletal muscle fibers are more tightly connected than cardiac muscle fibers.
b. It is a voluntary muscle.
c. Skeletal muscle fibers are shorter than cardiac muscle fibers.
d. It is composed of intercalated discs. ANS: It is a voluntary muscle.
In which of the following structures are water and chemicals exchanged between the blood and tissues?
Select one:
a. Atrioventricular node
b. Capillaries
c. Sinoatrial node
