PT Test Flashcards
What is the function of the tricuspid valve?
Prevents backflow of blood to the right atrium.
What is the fundamental unit of muscle contraction?
Sarcomere
Which chamber of the heart is responsible for pumping oxygenated blood to the body?
Left ventricle
What is the natural curve in the lumbar region of the spine?
Lordotic curve
Adenosine triphosphate production via “anaerobic” glycolysis is associated with the significant
formation of what by-product?
Lactic Acid
The changes in muscle size associated with long-term resistance training is most likely due to
increases in _____.
muscle fiber cross-sectional diameter
Downhill walking/jogging/running is characterized by eccentric activation of which of the following
muscle groups?
Quadriceps femoris
What is the typical resting blood pressure response to long term aerobic exercise in a
hypertensive individual?
Both systolic and diastolic pressures will decrease.
How does heart rate increase in relation to work rate and oxygen uptake during dynamic exercise?
Linearly
Which cardiovascular training approach, if repeated frequently, is most likely going to lead to
overtraining?
Two consecutive intensive days, followed by one easy day
What feature is unique to skeletal muscle as compared to cardiac muscle?
Requires nervous system stimulation
What is the correct path of blood flow through the chambers of the heart?
Right atrium; right ventricle; left atrium; left ventricle
What respiratory muscles can cause forceful expiration?
Internal intercostals
Which of the following occurs when walking or running up an incline?
Greater flexibility of the soleus
What two muscles, along with the supraspinatus and infraspinatus, make up the rotator cuff?
Teres minor and subscapularis
