The effects of norepinephrine and epinephrine have nearly the same effects as the neurotransmitters of the:
A) somatic nervous system. B) afferent nervous system.
C) parasympathetic nervous system. D) sympathetic nervous system.
Answer: D
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Which of the following conditions that can cause an airway obstruction is unique to patients with an injury to the upper cervical spine?
A) Retropharyngeal hematoma B) Blood or secretions in the mouth C) Oropharyngeal occlusion by the tongue D) Improperly inserted oropharyngeal airway
Because fluid loss as sweat is isoosmotic, the baroreceptor reflexes are more important than osmoreceptor activity in restoring extracellular fluid volume after sweating
Indicate whether the statement is true or false.
Julia is a new mother who plans to continue lactation for at least a year after her baby is born. At a post-parturition doctor's visit, the doctor says her blood test indicates declining levels of estrogen and progesterone. Will this interfere with her plans to lactate?
A. Yes, high levels of estrogen and progesterone are required for milk production. B. No, because the secretion of oxytocin and prolactin are more important for lactation. C. No, because even in the absence of hormones, suckling at the breast is sufficient stimulus for milk production. D. Yes, high levels of estrogen and progesterone are required for milk ejection.
The most important energy-transferring compound in cells is a nucleotide known as
A) deoxyribonucleic acid. B) protein. C) glucose. D) adenosine triphosphate. E) fructose.