General features of Muscle
Anatomy · Topic 3
Source: NMC CBME Curriculum 2024 · Volume I · Anatomy · Topic 3 · combined PDF page 108
Practice questions
- In the Chinese perch study, which method was used initially to distinguish fast and slow muscle fibres?
- How many Class II myosin light-chain genes were identified in the genome-wide analysis of Chinese perch?
- Which set of myosin light-chain genes was reported as associated with fast muscle in Chinese perch?
- Which genes were reported as preferentially expressed in slow muscle in the Chinese perch study?
- In the perch study, what was the direction of the difference in summed myosin light-chain transcript abundance between fast and slow muscle?
- After perch muscle injury, which pattern was reported for the fast-muscle-associated genes mylpfa, mylz3 and myl1?
- Which interpretation is best supported by a transcript-level association between a myosin light-chain gene and a fibre type in the perch study?
- In the MNR case series, in which types of muscle fibres were nemaline rods observed?
- Which inflammatory pattern was often described in muscle biopsies from the MNR series?
- Which cells were described invading nonnecrotic muscle fibres in the MNR case series?
- Which combination best distinguishes the MNR pattern from the comparison pattern of sporadic late-onset nemaline myopathy described in the supplied report?
- What proportion of the 11-patient MNR series had elevated creatine kinase?
- Among patients with follow-up in the MNR series, what treatment outcome was reported?
- A learner sees nemaline rods on a muscle biopsy and concludes that this alone establishes MNR. Which response best reflects the supplied evidence?
- In the study of explosive ordnance disposal tasks, which movements were associated with greater muscle demands?
- What did the study of heavy explosive ordnance disposal protective equipment report about thigh-muscle demands?
- When carrying a heavy load in the protective-equipment study, which lower-limb activation trend was noted?
- In the side-lying hip-abduction drop study, activity during which phase was among the variables associated with single-leg standing balance?
- The side-lying drop task model performed poorly for which outcome, despite identifying variables relevant to single-leg standing balance?
- Which inference is most appropriate when EMG activity in a muscle is higher during one movement than another?
- According to the skeletal-muscle growth review, what metabolic framework was proposed for faster-growing, more efficient meat animals?
- Why does the review frame muscle growth partly as a problem of carbon allocation rather than ATP production alone?
- What is the most important evidence limitation of the proposed Warburg-like model of skeletal muscle growth?