Which One of the Following Is NOT a Mechanism That

question 55

Multiple Choice

Which one of the following is NOT a mechanism that aids lymph return to the heart?

• A) milking action of skeletal muscles
• B) pressure changes within the thorax
• C) the pumping action of the heart
• D) smooth muscle contractions within the lymphatic vessels
• E) presence of valves within the larger lymph vessels

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Definitions:

Lewis Structure

Visual representations that demonstrate the connections between molecule atoms and indicate the presence of unshared electron pairs.

Propane

A three-carbon alkane with the molecular formula C3H8, commonly used as a fuel in heating and cooking appliances.

Condensed

A state of matter that is characterized by particles being in close proximity, typically referring to liquids and solids.

Lewis Structure

A graphical representation of the distribution of electrons in molecules, showing how the atoms are bonded together and the pairs of electrons not involved in bonding.