QUESTION 6 What is true about the specialized types of cardiac muscle cells? 0 A

Question

QUESTION 6 What is true about the specialized types of cardiac muscle cells? 0 A, cardiac cells do not contract but ?nstead are specialized for initiating potentials for contraction. B. There are two specialized types of cardiac muscle cells: (1) contractile cells; (2) autorhythmic cells. ? ?.cardiac cells obtain their required energy through glycolysis only. O D.located in the inner layer, the endothelium. QUESTION 7 What types of muscles are involuntary in terms of movement? O A.rough and smooth O B.cardiac and smooth o C.skeletal and cardiac O D.arterial and venous QUESTION 8 During muscle contraction, what becomes smaller? O A.thin filaments O B.the width of the A band o C.H zons O D.thick filaments QUESTION 9 One motor neuron, plus all the muscle fibers it innervates, is lnoun as a) O A.functional unit O B.nerve bundle ? ?.cross bridge O D.motor unit

Explanation / Answer

ANSWER 6
B. There are two specialized types of cardiac muscle cells: (1) contractile cells; (2) autorhythmic cells

ANSWER 7
B. cardiac and smooth

ANSWER 8
C. H Zone

ANSWER 9
D. Motor Unit

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