What is the expected heart rate when a heart is removed from a living body?
A) 75 beats / minute
B) 100 beats / minute
C) 50 beats / minute
D) the heart would immediately stop beating
B
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You have been asked to teach the principles of CPR to a group of teens training to be lifeguards. You use a diagram of the thoracic cavity to help you explain how chest compressions can maintain circulation. Which view of the chest would best illustrate this point?
A neuron conducting an impulse from the stomach wall to the CNS would be classified as a(n) __________ neuron
A. autonomic motor B. somatic sensory C. somatic motor D. visceral sensory
Superimposed on the basic negative-feedback control system are two additional factors that influence plasma cortisol concentrations:
a. gluconeogenesis and hypertension b. diurnal rhythm and stress c. high blood sugar levels and stress d. low blood sugar levels and stress e. diurnal rhythm and hypertension
Lipids
a. are broken down by pepsin. b. are absorbed into lacteals. c. enter as micelles. d. both (a) and (b) above. e. both (b) and (c) above.