Some of the precursors for secretion of hormones by the placenta come from the fetal adrenal cortex
Indicate whether the statement is true or false
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Which of the following is not a property of the limbic system?
A) primarily a functional grouping B) functions in maintaining homeostasis in cold weather C) located between the border of the cerebrum and diencephalon D) links conscious functions of the cerebral cortex with unconscious functions of the brain stem E) functions in emotions, learning, and memory
Which of the following correctly states how a gustatory receptor will be stimulated by an acidic or sour compound?
A) G proteins will be activated. B) Hydrogen ions will diffuse into the receptor cell causing depolarization. C) Sodium ions will diffuse into the receptor cell causing depolarization. D) Second messengers will be activated. E) Adenylate cyclase will be activated.
An example of chemical digestion is the break down of ________ into ________.
A. fatty acids; cholesterol B. amino acids; proteins C. polysaccharides; amino acids D. nucleic acids; nucleotides E. proteins; nucleotides
A drug that decreased calcium levels in a muscle cell and thereby lowered the number of crossbridges formed during the heart's contractions would be a
A. positive chronotropic agent. B. positive inotropic agent. C. negative inotropic agent. D. negative chronotropic agent.