Which of these muscle types permit(s) voluntary movement?
A) skeletal B) cardiac
C) smooth D) All of the above permit voluntary movement.
Answer: A
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What happens during diastole?
A. The heart muscles contract, moving blood to ventricules. B. The heart muscles pause, allowing both atria to empty. C. The heart muscles relax, allowing blood to flow into all chambers of the heart. D. The heart muscles contract, moving blood to atria.
The human heart
a. contracts as a result of stimuli from the sinoatrial node. b. contracts only as a result of nerve stimulation from the central nervous system. c. is activated primarily through the autonomic nervous system. d. rate is primarily under the control of the atrioventricular node. e. is independent of all nervous control
Tendons connect
a. bones to bones. b. bones to ligaments. c. muscles to bones. d. bones to cartilage. e. all of these.
The purpose of the voyage of the HMS Beagle was to
A. survey the living creatures on islands only. B. map navigational routes around the coasts of South America. C. discover new routes to the New World. D. search for gold.