Acetylcholine binds to a membrane bound receptor and causes ligand-gated sodium channels to open and results in
A. depolarization.
B. hyperpolarization.
C. no change in membrane potential.
D. hypoplarization.
E. There is not enough information to predict the outcome.
Answer: A
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In the skeletal system, compact bone is located
A) in direct contact with articular cartilages. B) where bones are most heavily stressed. C) where stresses arrive from many directions. D) in the epiphyses of the long bones. E) All of the answers are correct.
A cell is the basic unit of structure and function of an organism
Indicate whether the statement is true or false
Pernicious anemia is caused by the bone marrow failing to produce enough RBCs, even though all ingredients needed for erythropoiesis are available
a. True b. False Indicate whether the statement is true or false
At what region of the neuron are action potentials first produced?
What will be an ideal response?