A contractile response of a single muscle fiber to a single muscle impulse is called a:
A. tetanus
B. tone
C. treppe
D. twitch
E. paralysis
Ans: D. twitch
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These are called the "power plants" of the cell
A) Lysosomes B) Golgi apparatus C) Mitochondria D) Ribosome
It is important to ensure that your diet is adequately rich in vitamins because ________.
A) vitamins provide protection against the common cold B) very few foods contain vitamins C) most vitamins are coenzymes needed to help the body utilize essential nutrients D) all vitamins are water soluble and pass out of the body too quickly to ensure utilization
Which form of thyroid hormone has greater activity at target cells?
a. T3 b. T4 c. neither; T3 & T4 have equal activity.
The cells responsible for humoral immunity are the ________ cells
A) NK B) B C) helper T D) cytotoxic T E) suppressor T