An increase in blood carbon dioxide levels will cause:
A) decreased heart rate
B) increased heart rate
C) no change in heart rate
Answer: B) increased heart rate
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Which of the following is the correct sequence of events in phagocytosis?
A) adherence, digestion, killing, ingestion, chemotaxis B) chemotaxis, ingestion, digestion, adherence, killing C) chemotaxis, adherence, ingestion, digestion, killing D) ingestion, adherence, chemotaxis, digestion, killing
Siegfried experiences a hemorrhage in an artery, and now blood is leaking out of the resulting hole. His blood pressure decreases. Draw a flow chart illustrating the cardiovascular reflex responses that follow to compensate for the drop in blood pressure.
What will be an ideal response?
What might happen if the papillary muscles and/or chordae tendineae stopped functioning?
What will be an ideal response?
Which of these is not a factor that influences regeneration of PNS axons?
A. Distance of the damaged axon from the brain B. Secretion of nerve growth factors by neurolemmocytes C. Distance of the damaged axon from the receptor organ D. Amount of damage E. No exceptions; all of these affect regeneration