Which of the following is not one of the processes of urine formation?
A. Micturition
B. Tubular secretion
C. Tubular reabsorption
D. Glomerular filtration
E. All of these are processes of urine formation.
Answer: A
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Preparation for cell division occurs in the G2 phase.
a. true b. false
The internal structure that permits stiffening of the penis consists of three columns of ________.
Fill in the blank(s) with the appropriate word(s).
Which cell type, in its most active form, has an elongated, polarized morphologic appearance and a basophilic cytoplasm?
a. Chondrocyte b. Osteoblast c. Osteoclast d. Osteocyte e. Periosteal fibroblast
What would result from a lack of extracellular Ca2+ at the neuromuscular junction?
A. Synaptic vesicles would fail to fuse and ACh would not be released. B. The neuron must use its intracellular Ca2+ to make the vesicles fuse. C. Potassium ions are used in place of Ca2+ to ensure the vesicles fuse. D. Nothing would happen because extracellular Ca2+ does not play a role in muscle stimulation. E. Excessive synaptic vesicles would fuse and release too much ACh, overstimulating the myofiber.