★ Musculoskeletal System Responses to Exercises Quiz
How does the recruitment of motor units affect muscle force production?
A. Increases muscle fatigue
B. Decreases muscle strength
C. Enhances muscle force
D. Stabilizes muscle contraction
Select your answer:
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Body Fluids & Circulation › ViewDoctors use stethoscopes to hear the sound produced during each cardiac cycle. The second sound is heard when
A. AV nodes receives signal from SA node
B. All valves open up
C. Ventricular walls vibrate due to gushing in of blood from atria
D. Semilunar valves close down after blood flows into vessels from ventricles
Musculoskeletal System › View
What type of joint allows the widest range of movement?
A. Hinge joint
B. Pivot joint
C. Ball and socket joint
D. Fixed joint