A dancer performs a pirouette in which plane?
A. sagittal
B. frontal
C. transverse
D. longitudinal
C. transverse
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The portion of the adult brain that includes the medulla oblongata is derived from which secondary brain vesicle?
A. Telencephalon B. Diencephalon C. Myelencephalon D. Metencephalon E. Mesencephalon
The upper respiratory tract includes all of the following except the:
a. nose b. trachea c. pharynx d. larynx
An infant is born with a large defect in the central tendon of the diaphragm. This condition is most likely the result of malformation of which of the following structures?
(A) Dorsal mesentery of the esophagus (B) Ventral mesentery of the gut tube (C) Pleuroperitoneal folds (D) Septum transversum (E) Cervical somites
"I'm going to hold my breath until I turn blue and stop breathing and die and it will be all
your fault!" shrieked the 6-year-old at her father. The child was unable to carry out her threat because A) she could not take in enough oxygen. B) increased CO2 and hydrogen ion concentration and decreased oxygen concentration stimulate chemoreceptors. C) decreased CO2 and hydrogen ion concentration and increased oxygen concentration stimulate chemoreceptors. D) she never stopped talking long enough to try to hold her breath.