Excretion
a. is the removal of substances that were filtered at the glomerulus or secreted but not reabsorbed
b. is the process by which a substance moves from the peritubular capillary blood to the tubular fluid
c. conserves substances that are important to the body
d. occurs by active transport of substances into the urinary bladder
e. is controlled by sympathetic activity
A
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Choose the hormone that is NOT classified as a polypeptide or glycoprotein hormone.
A. Glucagon B. Parathyroid hormone C. Cortisol D. Antidiuretic hormone
In convergent pathways,
A) the response of the postsynaptic neuron depends on the summation of EPSPs and IPSPs. B) a smaller number of presynaptic neurons synapse with a larger number of postsynaptic neurons. C) information transmitted in one neuronal pathway can go into two or more pathways. D) all of the above.
Which correctly describes the composition of the glomerular filtrate?
A. It is identical to urine, but has a much smaller flow rate. B. It is identical to urine, but has a much larger flow rate. C. It is identical to blood plasma, except it lacks red blood cells. D. It is highly similar to plasma, except it contains plasma proteins. E. It is highly similar to plasma, except it does not contain plasma proteins.
The velocity of blood flow inside a blood vessel
A. increases along the walls of the blood vessel. B. is faster in the center of the blood vessel. C. is more rapid along the sides of the vessel. D. is equal to the blood pressure. E. is most rapid at a bend or turn in the vessel.