What is the main factor that determines the power of a muscle?
A) the length
B) the shape
C) the number of neurons innervating it
D) the total number of muscle cells available for contraction
D) the total number of muscle cells available for contraction
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Based on what we have learned about the regulation of blood flow to various organs, do you think it is wiser to rest or exercise after a heavy meal? Explain your answer.
What will be an ideal response?
A neuron might be temporarily unable to transmit an impulse to another if
A) its supply of neurotransmitters is exhausted. B) the neurons are of different types. C) you are asleep. D) there are too many astrocytes present. E) the levels of microglia are too low.
A person with type A blood has both the A and B antitbodies in their plasma
Indicate whether the statement is true or false
Lymph movement is assisted by
A. contraction of skeletal muscle. B. pressure changes in the thorax during respiration. C. compression of lymphatic vessels. D. contraction of smooth muscle in lymph vessel. E. All of the choices are correct.