Which of the following is not a feature of skeletal muscle?
A. Extensibility
B. Contractility
C. Excitability
D. Autorhythmicity
E. Conductivity
Answer: D
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A ________ antigen is an antigen with at least two antigenic determinant sites
A) complete B) perfect C) mature D) paired E) dipolar
A multifactorial trait is determined by many environmental factors, but not necessarily
genetic influences. Indicate whether the statement is true or false
The respiratory center gathers information from a variety of sources in order to set the rate and depth of breathing. This is an example of what type of neural circuit?
A. Reverberating B. Divergent C. Convergent D. Parallel after-discharge
Which is TRUE about neuronal membrane electrical and concentration gradients at the peak of the action potential?
A. The electrical gradient is in a direction that would tend to move K+ out of the cell. B. The concentration gradient for K+ is in a direction that would tend to move it into the cell. C. The concentration gradient for K+ greatly increases compared to at rest. D. The concentration gradient for Na+ is in a direction that would tend to move it out of the cell. E. The electrical gradient for Na+ is in a direction that would tend to move it into the cell.