A neuron is stimulated, which changes membrane potential to the point where voltage-gated Na+ channels open and begin depolarizing the cell. The neuron has reached
A. threshold.
B. summation.
C. recruitment.
D. tetanus.
Answer: A
Anatomy & Physiology
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A muscle that assists the agonist is a(n)
A) prime mover. B) mediator. C) antagonist. D) synergist.
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Which hormone is not secreted by the liver?
A. Erythropoietin B. Insulin C. Insulin-like growth factors D. Angiotensinogen E. Precursor for calcitriol
Anatomy & Physiology
Facilitated diffusion moves a substance following its concentration gradient, with the aid of a carrier protein.
Answer the following statement true (T) or false (F)
Anatomy & Physiology
The first step in using amino acids as fuel is to ________ them.
A. digest B. transaminate C. synthesize D. aminate E. deaminate
Anatomy & Physiology