what is the difference between pulmonary and systemic circulation

Question

Pulmonary circulation moves blood that had few nutrients
systemic circulation moves blood that has few nutrients
pulmonary circulation involves the brain and spinal cord only
systemic circulation involves the brain and the spinal cord only

Answer 1

Pulmonary circulation and systemic circulation are two distinct pathways for blood flow in the body, each serving different functions.

1. Pulmonary Circulation:

   • This circulatory route carries deoxygenated blood from the right side of the heart to the lungs.
   • In the lungs, the blood releases carbon dioxide and picks up oxygen.
   • The oxygenated blood then returns to the left side of the heart to be pumped out to the rest of the body.

2. Systemic Circulation:

   • This pathway carries oxygenated blood from the left side of the heart to the rest of the body, delivering oxygen and nutrients to tissues and organs.
   • After delivering oxygen, the blood returns deoxygenated to the right side of the heart to start the pulmonary circulation process again.

Based on your statements, the first one is somewhat inaccurate. Pulmonary circulation does involve the movement of blood that has low oxygen (not necessarily "few nutrients"), and systemic circulation involves blood that has high oxygen and nutrient content (rather than "few nutrients"). The second pair of statements about brain and spinal cord involvement is also not accurate—both types of circulation serve the whole body, including the brain and spinal cord, but in different contexts.

To summarize:

• Pulmonary circulation: Deoxygenated blood to lungs to get oxygen.
• Systemic circulation: Oxygenated blood to body to deliver oxygen and nutrients.