Cell connections called ____________________ force materials to pass through cells and not between them
Fill in the blank(s) with correct word
tight junctions
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Electrical signals are conducted toward the cell body of a neuron by its __________
Fill in the blank with correct word.
The corpus luteum secretes progesterone and estrogen.
Answer the following statement true (T) or false (F)
Which of the following would NOT terminate the effects of the neurotransmitter?
A) presence of calcium ions in the presynaptic neuron B) reuptake of neurotransmitter into the presynaptic neuron C) diffusion of the neurotransmitter into the extracellular fluid D) degradation of the neurotransmitter by enzymes
Billy is injured during a high school football game. His chest is badly bruised and he is experiencing difficulty in breathing. What might the problem be?
What will be an ideal response?