One of the Most Important Mechanisms for Maintaining Venous Return

question 16

Multiple Choice

One of the most important mechanisms for maintaining venous return to the right atrium is:

• A) cardiac output.
• B) capillary hydrostatic pressure.
• C) skeletal muscle contraction.
• D) respiratory cycling.

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Definitions:

Phosphatase Enzymes

A group of enzymes that catalyze the removal of phosphate groups from molecules, playing a vital role in metabolic and signaling pathways.

Protein Degradation

The process whereby proteins are broken down into their amino acids or smaller peptides, typically for recycling within the cell or to regulate biological activities.

Chemical Modification

The alteration of a chemical compound's structure to change its properties or activity, often used in drug development and material science.

Kinase Enzymes

Enzymes that catalyze the transfer of phosphate groups from high-energy donor molecules to specific substrates, playing key roles in cellular signaling.