A given synapse is always excitatory or ____________________
Fill in the blank(s) with correct word
inhibitory
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Suppose you cut your finger only slightly in what is known as a "paper cut." You observe that the cut hurts but it doesn't bleed. How would you interpret your observation?
A. Nerve endings occur in epithelium but blood vessels do not. B. The paper severed the skin, missing blood vessels, but hitting nerve endings. C. Very thin cuts never draw blood but do sever nerves. D. You probably have some unknown condition related to blood clotting. E. The paper had some factor that prevented the release of blood but not the sensation of pain.
The neurons that are responsible for integrating information by retrieving, processing, storing, and "deciding" how the body responds to stimuli are
A. sensory neurons. B. motor neurons. C. accessory neurons. D. correlation neurons. E. interneurons.
Because of the presence of tight junctions, passage of materials across an epithelial barrier must take place between the cells, not through them
Indicate whether the statement is true or false
match the nucleic acid with its description.
deoxyribonucleic acid (DNA) - ribonucleic acid (RNA) it contains a sugar called ribose; it contains nitrogenous bases A, U, C, G; it consists of one nucleotide chain; it functions mainly in the cytoplasm; it carries out the instructions of DNA - it contains a sugar called deoxyribose; it contains nitrogenous bases A, T, C, G; it consists of two nucleotide chains (double helix); it functions in the nucleus; it codes for synthesis of RNA nd protein