Venoconstriction reduces the diameter of which vessel?
A) artery
B) arteriole
C) capillary
D) venule
E) vein
Answer: E
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Which of the following structures propagates action potentials from the surface of a muscle fiber to its interior?
A. The sarcomeres B. The sarcoplasmic reticulum C. The endomysium D. The myofibrils E. The T tubules
Cleavage involves a series of ________ divisions and __________ in the overall size of the conceptus
A. meiotic; an increase B. meiotic; no change C. meiotic; a decrease D. mitotic; no change E. mitotic; an increase
Which type of flexibility accompanies the ROM achieved by actively contracting the antagonist muscle?
A. static flexibility B. dynamic flexibility C. passive stretching D. none of the above
Cystic fibrosis is a common genetic disease, affecting about one of every 3,200 Caucasian births in the United States. This disease is recognizable in the ancient Northern European folk saying, "Woe to that child which when kissed on the forehead tastes salty. He is bewitched and soon must die." Search two Internet sites for information on "cystic fibrosis and osmosis" or "cystic fibrosis and
membrane transport." List the two sites below and briefly summarize what you learn from them regarding the connections between this disease and malfunctioning plasma membranes. What will be an ideal response?