When repolarization of a neuron is complete, the
A. neuron dies.
B. neuron regenerates.
C. cell no longer has a potential difference across its membrane.
D. original polarity of the neuron is restored.
E. neuron is no longer excitable.
D
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Contracting the gastrocnemius muscles to elevate the body on the toes involves a ________ lever
A) first-class B) second-class C) third-class D) fourth-class E) fifth-class
Dehydration may cause some ions to become concentrated. If a person was suffering from severe hyperkalemia, you would expect
A) the membrane potential of nerves and muscles to be more negative. B) the potassium ion concentration of the interstitial fluid to be less than normal. C) the skeletal muscles to be unresponsive and cardiac arrest could occur. D) muscle weakness and increased strength of twitch contractions. E) All of the answers are correct.
Which of the following does not belong to the infrahyoid group of hyoid muscles?
A. Omohyoid B. Sternothyroid C. Mylohyoid D. Sternohyoid E. Thyrohyoid
Kelly is examining a myogram showing contractions of the gastrocnemius muscle. Assess how she should differentiate unfused (incomplete) tetanus from fused (complete) tetanus
What will be an ideal response?