Which of the Following Best Describes the Pathway an Oxygen

question 24

Multiple Choice

Which of the following best describes the pathway an oxygen molecule would take through the human circulatory system?

• A)systemic tissues → alveoli → pulmonary vein → pulmonary capillaries → systemic capillaries → left ventricle → left atrium → aorta → systemic arteries
• B)alveoli → pulmonary capillaries → pulmonary vein → left atrium → left ventricle → aorta → systemic arteries → systemic capillaries → systemic tissues
• C)alveoli → pulmonary capillaries → pulmonary artery → right atrium → right ventricle → pulmonary vein → systemic arteries → systemic capillaries → systemic tissues
• D)alveoli → pulmonary vein → pulmonary capillaries → systemic capillaries → left atrium → left ventricle → aorta → systemic arteries → systemic tissues

---

Definitions:

Current Flow

The movement of electrical charge through a conductor, typically measured in amperes (amps), fundamental to electrical circuits and devices' operation.

Ohm's Law

A fundamental principle in electricity that states the current through a conductor between two points is directly proportional to the voltage across the two points.

Total Circuit Resistance

The sum of all resistances within an electrical circuit, affecting the overall current flow and performance.

Ohm's Law

A fundamental principle in electricity stating that the current through a conductor between two points is directly proportional to the voltage across the two points and inversely proportional to the resistance between them.