The anterior communicating artery of the cerebral arterial circle connects the
A. posterior cerebral arteries.
B. anterior cerebral arteries.
C. vertebral arteries.
D. basilar artery and the internal carotid artery.
E. posterior communicating artery and the middle cerebral artery.
B
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Which statement accurately describes structures at a taste bud?
A. The gustatory microvillus of a gustatory cell extends through the taste pore of a taste bud. B. The gustatory villi of basal cells project through the taste bud to the surface of the epithelium. C. The gustatory microvilus of a papilla projects through the gustatory pore to the gustatory glomerulus. D. Basal cells contain villi that project through the pore of a papilla to make a taste bud.
What causes the release of neurotransmitters from sweet and umami tastes?
A. Release of Ca2+ from endoplasmic reticulum B. Opening of extracellular Ca2+ channels C. Closing of Na+ channels D. Closing of K+ channels
In controlling micturation:
A. sympathetic and somatic nerves act synergistically B. sympathetic and parasympathetic nerves act synergistically C. parasympathetic and somatic nerves act synergistically D. sympathetic, parasympathetic, and somatic nerves all act synergistically
Infants that are breastfed receive ________ from the mother.
A. IgA B. IgE C. IgF D. IgG