What is the afterbirth?
A) placenta and attached fetal extraembryonic membranes
B) amniotic fluids
C) meconium, bile, and other wastes
D) urine
Answer: A
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Certain natural plant poisons and animal venoms contain substances that inhibit the function of acetylcholinesterase. If a person is poisoned by one of these substances, which of the following will be the cause of their symptoms?
A. Their muscles won't be able to contract because acetylcholine will be attacked and degraded immediately after release from the neuron. B. Their muscles won't be able to contract because acetylcholine won't be properly synthesized by acetylcholinesterase. C. Their muscles will be in a constant state of contraction because acetylcholine won't be broken down and cleared from the neuromuscular junction. D. Their muscles won't be able to contract because no acetylcholine will be released from the neuronal membrane.
Which of the following is not true of the anatomy of the stomach?
A. The muscularis contains three layers, whereas most tubular digestive organs contain two. B. The pyloric sphincter regulates the flow of chyme from the stomach into the duodenum. C. The cardia is the region that lies superior to the opening of the esophagus into the stomach. D. The greater curvature is on the lateral and inferior surfaces of the stomach. E. All of these are true of the stomach.
Triglycerides are extremely hydrophobic and need to be transported in lipoprotein particles. The particle involved in the transfer of triglycerides from the liver to adipose tissue is called:
A. VLDL B. LDL C. chylomicron D. IDL E. HDL
The opening of the external urethral sphincter is through action of the
A. sympathetic nervous system. B. enteric nervous system. C. parasympathetic nervous system. D. somatic nervous system.