A 19-Year-Old Man Is Admitted to the Emergency Department After

Short Answer

A 19-year-old man is admitted to the emergency department after an automobile accident. A CT scan shows that the spinal cord is severed at T5. Balloon distension of the rectum is most likely to cause which of the following in this patient? $\begin{array}{lll}&External&&Internal\\&\text { Ana1 Sphincter } & \text { Rectum } &\text { Anal Sphincter }\\\hlineA.&\text { Contraction } & \text { Contraction } & \text { Contraction } \\B.&\text { Contraction } & \text { No effect } & \text { Contraction } \\C.&\text { Relaxation } & \text { Relaxation } & \text { Contraction } \\D.&\text { No effect } & \text { Contraction } & \text { No effect } \\E.&\text { Relaxation } & \text { No effect } & \text { No effect } \\F.&\text { No effect } & \text { Contraction } & \text { Relaxation } \\G.&\text { No effect } & \text { Relaxation } & \text { Relaxation } \\H.& \text { Relaxation } & \text { Relaxation } & \text { Relaxation }\end{array}$