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
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