When an Action Potential Reaches the End of an Axon,the

question 59

Multiple Choice

When an action potential reaches the end of an axon,the depolarization causes what ionic movement in the presynaptic cell?​

• A)sodium out of the cell
• B)​lithium out of the cell
• C)​iron into the cell
• D)calcium into the cell

Explain the susceptibility of adolescents to risk-taking behaviors.

Discuss the development of social responsibility in adolescents and the role of volunteerism.

Recognize factors that contribute to differential risks among adolescents during school transitions.

Understand the definitions and classifications of late adulthood stages.

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Definitions:

Sarcomere

The basic unit of a muscle's cross-striated myofibril, responsible for muscle contraction.

Fibrositis

Fibrositis, often called fibromyalgia, is a chronic condition characterized by widespread muscle pain, fatigue, and tender points on the body.

Connective Tissue

Tissue that supports, binds together, and protects organs and other body structures, composed of cells embedded in an extracellular matrix.

Fibrosis

The formation of excess fibrous connective tissue in an organ or tissue in a reparative or reactive process.