41. The ventricular muscle fibers a.all contract at the same time b.have pacemak

Question

41. The ventricular muscle fibers
a.all contract at the same time
b.have pacemaker to generate action potential
c.both a and b
d.neither a nor b

42. The cardiac muscle does not fatigue because of
a.the pacemaker mechanism
b.long refractory period
c.both a and b
d.neither a nor b

43. The total amount of capillary filtration is ___the amount of reabsorption.
a.the same as
b.greater than
c.less than
d.either b or c depends on the tissue activity

44. Tissue fluid proteins can be return to blood circulation through
a.capillaries
b.lymphatic vessels
c.both a and b
d.neither a nor b

45. The microcirculation involves
a.capillaries
b.arterioles
c.venules
d.all ofthe above

Explanation / Answer

41. The ventricular muscle fibers
a.all contract at the same time
b.have pacemaker to generate action potential
c.both a and b
d.neither a nor b

42. The cardiac muscle does not fatigue because of
a.the pacemaker mechanism
b.long refractory period
c.both a and b
d.neither a nor b

43. The total amount of capillary filtration is ___the amount of reabsorption.
a.the same as
b.greater than
c.less than
d.either b or c depends on the tissue activity

44. Tissue fluid proteins can be return to blood circulation through
a.capillaries
b.lymphatic vessels
c.both a and b
d.neither a nor b

45. The microcirculation involves
a.capillaries
b.arterioles
c.venules
d.all ofthe above

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