Drug Z is an agonist for a neurotransmitter receptor. It has a much higher affinity for the receptor and binds four times longer than the endogenous neurotransmitter. If you compare drug Z with the endogenous neurotransmitter, it's likely that drug Z will cause more frequent action potentials than the endogenous ligand.
Answer the following statement true (T) or false (F)
True
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Atrial natriuretic peptide stimulates
A. vasoconstriction, increased urine output, and therefore increased blood pressure. B. vasodilation, increased urine output, and therefore decreased blood pressure. C. vasoconstriction, decreased urine output, and therefore decreased blood pressure. D. vasodilation, decreased urine output, and therefore increased blood pressure. E. vasoconstriction, sodium retention, and therefore increased blood pressure.
Which is not a function of the placenta in humans?
A. Production of hormones B. Transfer of blood between mother and embryo C. Exchange of respiratory gases D. Transmission of maternal antibodies E. Exchange of nutrients
The zygote (fertilized egg) has the ability to produce all the various types of cells found in the body. Therefore, it is a(n) ________ cell.
A. totipotent B. omnipotent C. pluripotent D. multipotent
Which of the following is an example of simple squamous epithelial tissue?
a) lining/gastrointestinal tract b) lining/blood vessels c) epidermis/skin d) kidney tubules