Paramedics are called to a local mall where a 16-year-old boy involved his father's car in a low-speed car crash in the parking lot. No injuries are apparent on examination. The boy's heart rate is 90 beats/min, his blood pressure is 130/80 mm Hg, and his respiratory rate is 40 breats/min. The patient states that his fingers and toes are tingling and feel numb and that he is having heart palpitations. The patient's symptoms are most likely due to:
a. Excess carbon dioxide
b. Excess carbon dioxide elimination
c. Excess hydrogen ion elimination
d. Excess hydrogen ions
Answer: b. Excess carbon dioxide elimination
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Calcium, released by the sarcoplasmic reticulum, binds to ________ to move the ________, which allows actin to form of a ________ with myosin.
What will be an ideal response?
The greater the intensity of stimulation a muscle receives, the more motor units are activated. This is called
A. recruitment. B. oxygen debt. C. fatigue. D. hypertrophy.
The largest amount of carbon dioxide is transported in the bloodstream in the form of carbonic anhydrase
Indicate whether the statement is true or false
Pupillary constriction results from contraction of the ________ muscle of the iris as a consequence of ________ stimulation
a. circular; sympathetic b. circular ; parasympathetic c. radial; sympathetic d. radial; parasympathetic e. suspensory; somatic motor