The enterogastric reflex can be triggered by
A. distention of the duodenal wall.
B. the presence of food in the stomach.
C. increased pH in the duodenum.
D. the cerebral cortex.
E. the hormone secretin.
A
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With regard to reproduction, which is correct about SRY?
A. It is a protein that is normally coded for by a gene that is present on the Y chromosome. B. It is a gene that codes for testosterone. C. It is a protein that causes the degeneration of the Wolffian ducts. D. It is a gene found in both males and females. E. It is a protein normally coded for by a gene that is present on the X chromosome.
Guided by powerful signaling molecules, the human heart develops from
a. ectoderm and endoderm. b. ectoderm. c. blood cells. d. mesoderm. e. endoderm.
Typically, the resting membrane potential of a neuron is
A. 7 V. B. 700 mV. C. -7 V. D. -70 mV. E. 0 mV.
This figure shows a left lateral view of the brain. What lobe does number 2 indicate?
A. Temporal B. Frontal C. Parietal D. Occipital E. Insula