Stimuli produced by sound waves reach the brain following which pathway?
A. Cochlear duct > spiral organ > ossicles > oval window > auditory canal > tympanic membrane > fibers of cochlear nerve
B. Auditory canal > tympanic membrane > oval window > cochlear duct > ossicles > spiral organ > fibers of cochlear nerve
C. Cochlear duct > oval window > auditory canal > tympanic membrane > ossicles > spiral organ > fibers of cochlear nerve
D. Tympanic membrane > auditory canal > ossicles > oval window > cochlear duct > spiral organ > fibers of cochlear nerve
E. Auditory canal > tympanic membrane > ossicles > oval window > cochlear duct > spiral organ > fibers of cochlear nerve
E. Auditory canal > tympanic membrane > ossicles > oval window > cochlear duct > spiral organ > fibers of cochlear nerve
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Which of the following statements concerning the dorsal respiratory group (DRG) is correct?
a. the DRG consists of both inspiratory neurons and expiratory neurons. b. the neurons of the DRG remain inactive during normal quiet breathing. c. the DRG is called into play by the VRG as when demands for ventilation are increased. d. is found within the brainstem e. none of these answers.
Identify the following
A sterile male with undeveloped testes, enlarged breasts, and unusually long arms and legs most likely has which syndrome?
A. Turner syndrome B. Fetal alcohol syndrome C. Klinefelter syndrome D. Down syndrome E. Patau syndrome
Which of the following hormones has the broadest range of target organs?
a. ACTH b. somatotropin c. ADH d. TSH e. FSH