Each of the following organs is a component of the digestive tract except the
A) stomach.
B) pharynx.
C) esophagus.
D) bladder.
E) colon.
Answer: D
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When potassium channels open and the ions diffuse through the membrane,
A) the inside of the membrane will become more positive. B) the inside of the membrane will become more negative. C) there will be almost no effect on transmembrane potential. D) the membrane will become depolarized. E) the membrane will depolarize to threshold.
Which of the following nerves innervates the effectors of the patellar reflex?
A. Tibial nerve B. Common fibular nerve C. Femoral nerve D. Musculocutaneous nerve E. Median nerve
Which organelle is most prominent in cells that make large amounts of protein?
A) nucleus B) nucleolus C) chromosome D) smooth endoplasmic reticulum E) mitochondria
Which factor, when increased, increases metabolic rate to the greatest extent?
A. skeletal muscle activity B. mental activity C. dietary caloric intake D. environmental temperature E. blood glucose levels