The CSF produced by the choroid plexus of the brain circulates through the
A) central canal of the spinal cord.
B) ventricles of the brain and central canal of the spinal cord.
C) dorsal root ganglia of the spinal nerves.
D) cervical, brachial, and lumbosacral plexuses.
E) ventricles of the brain.
B) ventricles of the brain and central canal of the spinal cord.
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The squid served as an ideal model system to study neurophysiology because
A) Squids are invertebrates and invertebrates have a simpler nervous system than vertebrates. B) The large diameter of the squid's neurons enabled researchers to make recordings from inside of a nerve cell. C) Fast electrical communication is a unique feature of squids. D) Squids are active predators and therefore have many nerves that can be easily studied.
Which of the following statements best describes the fluid mosaic model of the plasma membrane? a protein bilayer sandwiching a layer of lipids
A)a single layer of proteins surrounding a single layer of lipids B)a single layer of proteins with lipid molecules dispersed within C)a single layer of lipids surrounding a layer of proteins D)a lipid bilayer with protein molecules dispersed within it
Cytokines used as immunotherapeutic drugs can
A. increase antibody activity against cancer cells. B. cause cancer cells to undergo apoptosis. C. enhance T cell activity against cancer cells. D. All apply.
Dense regular connective tissue is found in ______
What will be an ideal response?