The two threadlike proteins that slide to generate a muscle contraction are
A) actin and myosin.
B) myosin and acetylcholine.
C) ATP and calcium.
D) calcium and actin.
E) acetylcholine and ATP.
A
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Benign carcinoid tumor of kidney. ________
Fill in the blank with correct word.
The ____ are mucous membranes that line the inner surfaces of the eyelids.
A. lacrimal glands B. nasolacrimal ducts C. orbicularis oculi D. conjunctivas E. sclera
The Medicare program
A. employs MACs to pay the claims submitted by providers. B. employs MACs to pay the Medicare beneficiary. C. directly pays the Medicare beneficiary. D. directly pays the claims submitted by providers.
If a nonparticipating provider's usual fee is $600, the allowed amount is $300, and balance billing is permitted, what amount is written off?
A. $150 B. $480 C. $0 D. $300