During muscle contractions,
A. The sarcomeres shorten
B. The actin filaments slide over the myosin filaments
C. The actin filaments move toward the middle of the sarcomere during contraction and away on relaxation
D. The muscle fibers thicken
E. All of these occur
Select your answer:
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Forensic Pathology Male Reproductive System Cell Structure and Function Animal Genetics and Nutrition Cosmetology Anatomy Laboratory Careers Population Ecology Health & Wellness Vocabulary Bone Shapes & Long Bone Anatomy Integumentary and Musculoskeletal Systems Weight Management Muscular System Axial & Appendicular Skeleton Defence against Infectious Diseases Monoclonal AntibodiesOther quiz:
Endocrinology › ViewThe only indication where triiodothyronine is preferred over thyroxine is
A. Endemic goiter
B. Cretinism
C. Myxedema coma
D. Papillary carcinoma of thyroid
Sports Medicine › View
Study an athlete’s performance, looking for weak points, they suggest changes to training program
A. Personal Trainer
B. Certified athletic trainer
C. Strength and conditioning coach
D. Team physician