Ch 2-Neuron Function and Zombie Apocalypse

In a human neuron, what primarily contributes to the negative charge inside the cell compared to the outside?

• High concentration of potassium inside, high sodium outside

• Equal distribution of sodium and potassium on both sides

• Movement of chloride ions into the cell

• Excess calcium ions inside the cell

How does electrostatic pressure contribute to neuron function in the human brain, essential for detecting zombies?

• Maintaining equal charge distribution across the membrane

• Through the attraction of opposite charges across the neuron membrane

• By preventing ion movement across the neuron membrane

• Ensuring the movement of ions from lower to higher concentration

When developing an anti-zombie serum, what are the typical ion concentrations inside and outside a neuron in a healthy human brain?

• High sodium inside, high potassium outside

• High potassium inside, high sodium outside

• Equal sodium and potassium inside and outside

• High chloride outside, high calcium inside

What is the primary function of the sodium-potassium pump in human brain cells during a zombie apocalypse?

• Exchanging two sodium ions for three potassium ions

• Keeping sodium and potassium levels equal inside and outside the cell

• Pumping sodium and potassium ions out of the cell

In comparing a zombie's brain to a human's, which forces might be acting abnormally in the zombie's resting membrane potential?

• Diffusion and electrostatic pressure

• Osmotic pressure and electrostatic pressure

• Gravitational force and diffusion

• Magnetic field interactions and osmotic pressure

How does the equilibrium potential contribute to the different brain activities of zombies and humans?

• It generates electrical impulses in zombies but not in humans

• It maintains electrical balance in human neurons, possibly disrupted in zombies

• It creates a higher action potential in zombies

• It prevents action potentials in both zombies and humans

To effectively target zombies with an anti-zombie agent, where should it be applied to initiate an action potential in human neurons?

• Dendritic spines

• Axon hillock

• Myelin sheath

• Node of Ranvier

What is the typical amplitude of an action potential in a human neuron during a zombie outbreak?

• 70 mV

• 100 mV

An action potential in a neuron can be likened to which common household fixture?

• Light switch

• Refrigerator

• Toilet

• Television

Why would inducing hyperpolarizing stimuli in human brains be a beneficial feature in a zombie-repelling device?

• Increases the likelihood of neuron firing

• Makes neurons more sensitive to stimuli

• Decreases the likelihood of neuron firing

• Balances the ion concentration in neurons