The Equilibrium Potential of K Ions in Nerve Cells Is

question 82

Multiple Choice

The equilibrium potential of K ions in nerve cells is about -90 mV.The membrane potential of typical nerve cells at rest is -70 mV.Therefore

• A)Increasing the permeability of a resting neuronal membrane to K ions will increase the membrane potential (that is, make it more negative, inside with respect to outside)
• B)In nerve cells at rest, there is a net diffusion of K ions out of the cell
• C)Increasing the membrane potential of a nerve cell would slow the diffusion of K ions out of it
• D)Potassium is not the only permeant ion at rest
• E)All of the choices are true

Recognize the significance of non-pharmacological treatments for older adults and the reasons for their preference.

Understand the concept and implications of neurocognitive disorders, including their causes and symptoms.

Distinguish between different types of dementias and their primary impact areas in the brain.

Understand the commonality and impact of anxiety disorders among older adults, and the challenges in diagnosing them.

---

Definitions:

Connective Tissue

Tissue that supports, binds, or separates other tissues or organs, consisting of cells embedded in a large amount of extracellular matrix.

Fluid Connective Tissue

This refers to body fluids like blood and lymph that connect various systems by carrying nutrients, gases, and waste products.

Klinefelter's Syndrome

A genetic condition in males characterized by an extra X chromosome, leading to various physical and reproductive issues.

Breast Enlargement

The increase in size, shape, or fullness of the breasts, which can occur naturally, through hormonal changes, or be achieved surgically.