Blog

25. Muscle hypertrophy is muscle enlargement where the diameter of muscle fiber increases.   Which statement below, regarding muscle hypertrophy, is FALSE? a.    number of myofilaments made up of actin & myosin in hypertrophied muscle increase b.    hypertrophied muscles have more mitochondriac.    hypertrophy muscles have larger glycogen reservesd.    number of muscle fibers or muscle cells increase in hypertrophye.    number of thick and thin filaments increases

28.    Smooth muscle, cardiac muscle, visceral organs & glands are effectors or targets of the? a.    automatic nervous systemb.    somatic nervous systemc.    autonomic nervous systemd.    sensory or afferent division of the PNSe.    CNS

21. A myogram is a graph of tension in muscle fibers. What is the correct order of       occurrence,  of the myogram phases, from pre-stimulation to post-stimulation? a.    latent period, relaxation phase, resting phase, stimulus, contraction phaseb.    latent period, resting phase, stimulus, contraction phase, relaxation phasec.    resting phase, latent period, stimulus, contraction phase, relaxation phased.    resting phase, stimulus, latent period, contraction phase, relaxation phasee.    stimulus, resting phase, latent phase, contraction phase, relaxation phase  

6.   What happens when contraction occurs in skeletal muscle? (Choices may have changed       from study guide) a.    the H zone gets largerb.    the Z lines move farther apartc.    the width of the A band gets thicker & shorterd.    cross-bridging attachment & pivoting of filaments occurse.    all of the above occur

19. Duration of muscle contraction depends on all the following, EXCEPT?       Which item below does not occur in muscle contraction? a.    stimulation by an action potential (“nerve impulse”) at MNJ by ACHb.    the amount  of calcium released from the sarcoplasmic reticulumc.    availability of ATP to break cross-bridgesd.    availability of cholinesterase to neutralize ACH and stop the process at the MNJe.    the amount of sodium released from the sarcoplasmic reticulum

24. Normal muscle function requires all of the following, except?  Which does it NOT require? a.    energy reserves of ATPb.    normal circulationc.    normal blood oxygen levelsd.    high levels of lactic acide.    normal blood pH  

34 Comment les parents de Robert ont-ils réagi à son désir d’être alpiniste ? (1)  

17 Mathilde habite dans un petit village  [1] (1)  

37 Combien d’heures d’entraînement Robert fait-il chaque année ? (1)  

23 Pour être médecin, où Mathilde devra-t-elle faire des études ? (1)