Which of the Following Is Not One of the Four

question 161

Multiple Choice

Which of the following is not one of the four mechanisms responsible for exchange in capillaries and sinusoids

• A)diffusion across the capillary endothelial cells
• B)diffusion through gaps between adjacent endothelial cells
• C)diffusion through the pores in fenestrated capillaries and sinusoids
• D)vesicular transport by endothelial cells
• E)primary active transport

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Definitions:

Resting Potential

The state of the neuron when not firing a neural impulse.

Neurotransmitter

Chemical substances that transmit nerve impulses across a synapse from one neuron to another.

Synaptic Vesicles

Membrane-bound sacs within the neuron that store neurotransmitters, which are chemicals involved in transmitting messages across the synaptic gap.

Resting Potential

The electrical charge of a neuron when it is not active or transmitting an impulse, representing the difference in electric potential across the neuron's membrane.