The estrus cycle of a ewe lasts about _________ hours
Fill in the blank(s) with correct word
30
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Which local chemical factor is not associated with vasodilation of arterioles?
a. decreased nitric oxide b. increased CO2 c. increased acid d. decreased O2 e. increased histamine
Which of the following would disqualify a chemical messenger from being considered a paracrine signal?
a. It is an organic molecule. b. It is not transported in the blood. c. It affects the cell that released it. d. Once released, it is distributed to its target(s) by simple diffusion. e. It is released as a specific response to a signal.
The heel of the foot is formed by the ________.
A. calcaneus B. patella C. talus D. navicular bone E. cuboid bone
Triangular muscles, like the pectoralis major are also called _____ muscles
A. circular B. convergent C. bipennate D. parallel