The function of the intrinsic conduction system is to ________
A) carry branches of the autonomic nervous system to heart muscle
B) contract slightly before the cardiac tissue to which it is connected
C) maintain the structural integrity of the atria and ventricles
D) ensure that the heart beats in a sequential and coordinated manner
Answer: D
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Simple reflexes in a worm are integrated within a segment rather than in the brain, because
A) worms do not have brains. B) worms have a neural network within each segment. C) worms have a ganglion at each segment. D) worms do not have a nervous system.
The major body part(s) derived from ectoderm is/are
A) muscle tissue. B) nervous system and skin. C) liver and pancreas. D) bone tissue.
____________________ tissue stores triglycerides
Fill in the blank(s) with correct word
Fixed acid is regulated by the ________ through the absorption and elimination of ________.
A. kidney; bicarbonate and H+ B. kidney; carbonic acid C. respiratory system; carbonic acid D. respiratory system; bicarbonate and H+