The exceptional flexibility of the shoulder girdle is due, in part, to the ________
A) strong ligament that holds the head of the humerus to its socket
B) deep socket that holds the humerus
C) strong joint that holds the shoulder girdle to the axial skeleton
D) ability of the scapula to slide easily against the thorax
Answer: D
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Indicate whether this statement is true or false.
Temperature-dependent remodeling may involve qualitative strategies such as
A) Changes in mitochondrial density of muscle fibers. B) Hypertrophic growth of the heart. C) Seasonal differential expression of myosin isoforms. D) Variable levels of myoglobin concentrations.
Which of the following would be of most importance to goblet cells and other glandular epithelium?
A) microvilli B) Golgi bodies C) lysosomes D) multiple nuclei
During excitation-contraction coupling,
a. the action potential travels down the transverse tubules. b. Ca2+ is released from the sarcoplasmic reticulum. c. Ca2+ is taken up by the sarcoplasmic reticulum. d. both (a) and (b) above are correct. e. all of these answers.