The origin is
A. the end of the muscle where the action occurs.
B. the stationary end of the muscle.
C. a group of muscles that work together to cause movement.
D. the muscle that does most of the movement.
E. a muscle working in opposition to another muscle.
Answer: B
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The function of the nucleus is to
A. transfer energy. B. form mitochondria. C. provide cell shape. D. direct the activities of the cell.
What is NOT true of muscle spindles?
A) The contractile poles of intrafusal fibers within muscle spindles are innervated by ?-motor neurons. B) Muscle spindles are receptors for the stretch reflex. C) Muscle spindles are embedded within extrafusal muscle fibers. D) Muscle spindles are found within tendons.
The information that is passed from a sensory receptor to the central nervous system is called a
A) depolarization of a receptor. B) perception C) transducer. D) motor pathway. E) sensation.
You notice a missing P wave on a patient's electrocardiogram (ECG) and believe there is a problem with the ________
A) atrioventricular (AV) node B) Purkinje fibers C) left bundle branch D) atrioventricular (AV) bundle E) sinoatrial (SA) node