What are the three functions of the nervous system in order of how they occur?

• Sensory input, integration, motor output

• Motor output, sensory input, integration

• Integration, motor output, sensory input

• Sensory input, motor output, integration

Tags

NGSS.MS-LS1-8

Sense and approach injured neurons. Which glial cell?

• Microglial cells

• Astrocytes

• Schwann cells

• Ependymal cells

Surround the cell body of a neuron. Which glial cell?

• Satellite cells

• Astrocytes

• Schwann cells

• Microglial cells

Use cilia to circulate cerebrospinal fluid around the brain and spinal cord. Which glial cell?

• Ependymal cells

• Astrocytes

• Schwann cells

• Microglial cells

What are two other terms for an action potential?

• Nerve impulse, message

• Signal, wave

• Current, flow

• Charge, spark

What do we call the difference in charge on the inside of a cell versus the outside?

• Membrane potential

• Voltage difference

• Ionic balance

• Electrical gradient

Tags

NGSS.HS-PS2-5

What causes the difference in charge on the inside versus the outside of a cell?

• Ions

• Electrons

• Protons

• Neutrons

Which two ions are involved in membrane potential?

• Na+ and K+

• Ca2+ and Cl-

• Mg2+ and SO4-

• H+ and OH-

What is the charge inside of a cell naturally (positive or negative)? Why is it this way?

• Negative due to DNA

• Positive due to proteins

• Neutral due to water

• Positive due to lipids

What is a concentration gradient?

• A difference in concentration of specific ions between the inside and outside of a cell

• A balance of water molecules inside and outside the cell

• A uniform distribution of ions across the cell membrane

• A difference in temperature inside and outside the cell