Which of the following is an effector?
A. A gland
B. An interneuron
C. An efferent neuron
D. An afferent neuron
E. A sense organ
Answer: A
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Answer the following statements true (T) or false (F)
1. The major duodenal papillae allows partially digested food to enter the small intestine. 2. One function of cholecystokinin is to cause the gallbladder to contract. 3. One function of pancreatic juice is to lower the pH of the food entering the small intestine from the stomach. 4. Vitamin K and some B vitamins are produced by bacteria in the large intestine. 5. The chewing of food by the teeth is the only example of mechanical digestion in the human digestive system.
Before securing the ET tube in place with a commercial device, you should:
A) remove the bag-mask device from the ET tube. B) hyperventilate the patient for 30 seconds to 1 minute. C) move the ET tube to the center of the patient's mouth. D) note the centimeter marking on the ET tube at the patient's teeth.
To maintain ________, the body uses a combination of simple diffusion across small distances; wide spread distribution of molecules through the circulatory system and rapid, specific delivery of messages by the nervous system.
Fill in the blank(s) with the appropriate word(s).
Which of the following statements about mice and rats is true?
A) Mice are primarily nocturnal. B) Rats have poor swimming skills. C) Mice have superior detailed vision. D) Rats have 24 teeth.