Which of the following is NOT true of a myofibril?
A. Thin myofilaments consist of actin, troponin, and tropomyosin.
B. Thick myofilaments consist of myosin.
C. Elastic filaments are composed of titin.
D. Myofibrils are composed of muscle fibers.
E. All of these are true of myofibrils.
Answer: D
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A. Ectoderm B. Mesoderm C. Trophoderm D. Endoderm E. Endoderm, mesoderm, and ectoderm
The bones of the wrist form the
A) tarsus. B) brachium. C) manus. D) os coxae. E) carpus.
In general, a muscle's resting length is its optimal length for force generation.
Answer the following statement true (T) or false (F)
Increased insulin secretion immediately following a meal will result in increased
A. fat catabolism. B. glycogenolysis. C. gluconeogenesis. D. glycogen synthesis. E. release of glucose into the circulatory system.