Five-year-old Charlie is so mad that he's holding his breath until he gets his way. What will stimulate his breathing rate to return to normal?
A) lack of sensory information being sent to central chemoreceptors
B) lack of oxygen
C) lack of sensory information being sent to peripheral chemoreceptors
D) accumulation of partial pressure of carbon dioxide (PCO2 )
Answer: D
You might also like to view...
The spinal cord part with the largest diameter is the ________ part.
A. sacral B. cervical C. lumbar D. thoracic E. coccygeal
How would removal of calcium ions from a blood sample affect coagulation?
A) The coagulation pathway would be lacking a required cofactor at many steps. B) Coagulation would be prevented. C) There would be no effect because magnesium can substitute for calcium. D) The coagulation pathway would be lacking a required cofactor at many steps and coagulation would be prevented. E) There would be no effect because calcium is not a necessary cofactor in coagulation.
What kind of reflex arc does not require an interneuron?
A. A simple reflex arc B. An asynaptic reflex arc C. A bisynaptic reflex arc D. A diverging reflex arc E. A monosynaptic reflex arc
Which of the following is an accessory organ of digestion?
A) appendix B) pancreas C) spleen D) colon E) esophagus