What Force Is Most Important in Returning Blood Back to the Heart

question 20

Multiple Choice

What force is most important in returning blood back to the heart in the veins?

• A)contraction of the skeletal muscles in the body
• B)contraction of the ventricles on the heart
• C)gravity
• D)osmotic pressure of proteins in the blood

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Definitions:

Mental Health

The psychological state of someone who is functioning at a satisfactory level of emotional and behavioral adjustment; encompasses emotional, psychological, and social well-being.

Loneliness

The subjective feeling of being alone or isolated, regardless of the actual level of social contact or support.

Close Friends

Relationships characterized by a high degree of trust, intimacy, and mutual respect, often formed through shared experiences over time.

Need to Belong

The need to belong is a fundamental human motivation to form and maintain strong, stable interpersonal relationships.