Anatomy &Physiology: Ch.10 Muscle Tissue
Complete 2025 Version Questions with Verified
Answers
Slow fibers have a small network of _______. - Answer Capillaries
Muscle relaxation occurs when ________. - Answer calcium ions are actively transported into the
sarcoplasmic reticulum
Drug X blocks ATP regeneration from ADP and phosphate. How will muscle cells respond to this drug? -
Answer none of the above
Muscle fatigue is caused by ________. - Answer exhaustion of energy reserves and buildup of lactic acid
levels
Which element is important in directly triggering contraction? - Answer calcium (Ca++)
From which embryonic cell type does muscle tissue develop? - Answer myoblast cells
The muscles of a professional sprinter are most likely to have ________. - Answer 80 percent fast-twitch
muscle fibers and 20 percent slow-twitch muscle fibers
A sprinter would experience muscle fatigue sooner than a marathon runner due to ________. - Answer
anaerobic metabolism in the muscles of the sprinter
The muscles of a professional marathon runner are most likely to have ________. - Answer 20 percent
fast-twitch muscle fibers and 80 percent slow-twitch muscle fibers
During muscle contraction, the cross-bridge detaches when ________. - Answer calcium ions bind to
troponin
Complete 2025 Version Questions with Verified
Answers
Slow fibers have a small network of _______. - Answer Capillaries
Muscle relaxation occurs when ________. - Answer calcium ions are actively transported into the
sarcoplasmic reticulum
Drug X blocks ATP regeneration from ADP and phosphate. How will muscle cells respond to this drug? -
Answer none of the above
Muscle fatigue is caused by ________. - Answer exhaustion of energy reserves and buildup of lactic acid
levels
Which element is important in directly triggering contraction? - Answer calcium (Ca++)
From which embryonic cell type does muscle tissue develop? - Answer myoblast cells
The muscles of a professional sprinter are most likely to have ________. - Answer 80 percent fast-twitch
muscle fibers and 20 percent slow-twitch muscle fibers
A sprinter would experience muscle fatigue sooner than a marathon runner due to ________. - Answer
anaerobic metabolism in the muscles of the sprinter
The muscles of a professional marathon runner are most likely to have ________. - Answer 20 percent
fast-twitch muscle fibers and 80 percent slow-twitch muscle fibers
During muscle contraction, the cross-bridge detaches when ________. - Answer calcium ions bind to
troponin
