Nicotinic receptors are expressed on skeletal muscle cells. Which of the following would likely be a side-effect of the use of nicotine, an agonist for those receptors?
A. Drowsiness
B. Muscle relaxation
C. Muscle cell twitches (contractions)
D. Muscle paralysis
E. None of the answer choices are correct
Answer: C
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Tendons and ligaments are classified as epithelial tissue
a. True b. False Indicate whether the statement is true or false
Given that hepatocytes carry out much of the lipid synthesis of the body, including the manufacture of cholesterol and phospholipids, what organelle would you expect to be particularly abundant in these cells?
A. Golgi apparatus B. Ribosomes C. Lysosomes D. Smooth endoplasmic reticulum E. Mitochondria
Which of the following muscles is NOT a flexor of the elbow?
A. Brachialis B. Biceps brachii C. Brachioradialis D. Triceps brachii E. All of these are flexors of the elbow.
A neuron may have
A. no dendrites. B. no axons. C. one axon and many dendrites. D. one dendrite and many axons.