The sarcolemma of a resting muscle fiber is most permeable to ________
A) potassium B) sodium C) lithium D) magnesium E) calcium
A
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When released in large quantities, thyroxine, a thyroid gland hormone, causes a sustained increase in heart rate
Indicate whether the statement is true or false
The insertion is
A. the end of the muscle where the action occurs. B. a group of muscles that work together to cause movement. C. the stationary end of the muscle. D. the muscle that does most of the movement. E. a muscle working in opposition to another muscle.
Upon exposure to heat, skin vasodilation occurs, which increases the temperature gradient between the skin and environment, thus promoting heat loss
Indicate whether the statement is true or false
The adjustment of respiratory rate due to blood pressure rising and falling results from the stimulation or inhibition of the respiratory centers by sensory fibers in which cranial nerve(s)?
A) vagus (X) and accessory (XI) B) hypoglossal (XII) only C) glossopharyngeal (IX) and vagus (X) D) vagus (X) and hypoglossal (XII) E) glossopharyngeal (IX) and hypoglossal (XII)