What structure collects both salts and water in equal amounts and moves them back to blood circulation?
A. Efferent arteriole
B. Vasa recta
C. Loop of Henle
D. Afferent arteriole
E. Collecting duct
Answer: B
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ADH and oxytocin are secreted by
A. neuromuscular cells. B. neurosecretory cells. C. neuroglia. D. neurons.
Passive membrane transport processes include ________.
A) movement of a substance down its concentration gradient B) movement of water from an area of low concentration to an area of high concentration C) consumption of ATP D) the use of transport proteins when moving substances from areas of low to high concentration
Match the following:
A) Spiral organ (of Corti) B) Vestibule C) Cochlear duct D) Tympanic membrane 1) Houses the spiral organ (of Corti.) 2) The receptor organ for hearing. 3) The central part of the bony labyrinth. 4) A membrane that transmits sound vibrations to the auditory ossicles.
Without iodine in the diet, which thyroid gland disorder may result?
A) Graves' disease B) cretinism C) pituitary dwarfism D) goiter E) myxedema