YMCA CPR EXAM II FINAL PAPER 2026 COMPLETE ANSWERS VERIFIED

YMCA CPR EXAM II FINAL PAPER 2026
COMPLETE ANSWERS VERIFIED

◉ Osteoblasts. Answer: Special cells that form and lay down new
bone tissue


◉ Osteoclasts. Answer: Special cells that break down and remove
old bone tissue


◉ Vertebral Column. Answer: Cervical, thoracic, lumbar, sacrum,
coccyx


◉ Sliding Filament Theory. Answer: Theory on the mechanism for
muscle contraction


◉ Actin. Answer: Thin filaments


◉ Myosin. Answer: Thick filament


◉ Type I Muscle Fibers. Answer: Smaller, slow twitch, more resistant
to fatigue

, ◉ Type II Muscle Fibers. Answer: Larger, fast twitch, faster to fatigue


◉ Aerobic. Answer: Requires oxygen


◉ Muscle Spindles. Answer: Sensory receptors sensitive to change in
length of the muscle and the rate of that change, stretch reflex


◉ Golgi Tendon. Answer: Sensitive to changes in muscle tension and
rate of tension change


◉ Atrium. Answer: Superior chambers of the heart that gather blood
returning to the heart


◉ Ventricle. Answer: Inferior chambers of the heart that pump blood
to the lungs and body


◉ Sinoatrial Node (SA Node). Answer: Located in the right atrium,
serves as a natural pacemaker for the heart


◉ Arteries. Answer: Vessels that transport blood away from the
heart


◉ Veins. Answer: Vessels that carry blood to the heart