If you have to urinate, but have to "hold it" until you can find a bathroom, what structure are you "holding it" with?
A) the internal anal sphincter
B) the external urethral sphincter
C) the internal urethral sphincter
D) the trigone
E) the pyloric sphincter
Answer: B
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The lining of the digestive tract plays a defensive role by protecting surrounding tissues against
A) mechanical stresses. B) the corrosive effects of acids. C) pathogens that are swallowed with food. D) the corrosive effects of digestive enzymes. E) All of the answers are correct.
Which of the following is not one of the effects of cortisol?
What will be an ideal response?
What is the afterbirth?
A) placenta and attached fetal extraembryonic membranes B) amniotic fluids C) meconium, bile, and other wastes D) urine
The normal pH of blood is
A) slightly alkaline. B) neutral. C) slightly acidic. D) extremely alkaline. E) extremely acidic.