Excess levels of blood K+ ________.
A. decrease both heart rate and contraction strength
B. increase heart rate but do not affect heart contraction strength
C. decrease heart rate but do not affect heart contraction strength
D. increase both heart rate and contraction strength
Answer: A
You might also like to view...
A football player sustained an injury to his hamstring group. What muscles belong to the hamstring group and what would be the effect of the injury on this group?
What will be an ideal response?
Protons and electrons exist in every atom nucleus except hydrogen. Is this statement true or false and why?
What will be an ideal response
Which statement regarding the storage of your pig is the most correct?
A) The pig should be dried and then stored in a sealed bag. B) The pig should be stored in a sealed bag covered in distilled water. C) The pig should be stored in a sealed bag with exposed muscles covered with paper towels that have been dampened with fixative. D) The pig should be stored on the dissecting pan without any coverings.
Closing or puckering the lips is the action of the _____ muscle
A. auricularis B. orbicularis oris C. orbicularis oculi D. levator anguli oris E. zygomaticus