Neurons have a _______ membrane potential of -70mV. In other words, this is their stable membrane potential under normal conditions
Fill in the blank with correct word.
resting
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Glycogen is a complex carbohydrate that is obtained by eating plants.
Answer the following statement true (T) or false (F)
Helper T cells ________
A) function in the adaptive immune system activation B) often function to decrease the immune response C) bind tightly to target cells and release a lymphotoxin called perforin D) release B7 proteins
__________ fluid prevents friction between the heart and the pericardium when the heart beats
Fill in the blank(s) with correct word
Reflex arcs
A. are capable of receiving a stimulus and yielding a response. B. are the basic structural units of the nervous system. C. occur primarily in the cerebral cortex of the brain. D. involve inhibitory neurons. E. do not involve the spinal cord.