Indicate correct statement for Human `:-`

Options

A. Arteries always carry oxygenated blood while veins always carry deoxygenated blood
B. Venous blood is returned to left auricle
C. Arteries are provided with valves while veins are devoid to valves
D. Arteries always carry blood away from the heart, while veins always carry blood towards the heart

Answer

To determine the correct statement regarding human physiology, let's analyze the provided statements step by step.

### Step 1: Analyze the first statement
**Statement:** "Arteries always carry oxygenated blood while veins always carry deoxygenated blood."
- This statement is **false** because there is an exception. The pulmonary artery carries deoxygenated blood from the heart to the lungs, while the pulmonary vein carries oxygenated blood from the lungs back to the heart.

**Hint:** Remember the role of the pulmonary artery and vein in the circulatory system.

### Step 2: Analyze the second statement
**Statement:** "Venous blood is returned to the left auricle."
- This statement is **false**. Venous blood is returned to the **right auricle** of the heart, not the left auricle.

**Hint:** Consider where deoxygenated blood from the body returns in the heart.

### Step 3: Analyze the third statement
**Statement:** "Arteries are provided with valves whereas veins are devoid of valves."
- This statement is **false**. In fact, veins have valves to prevent backflow of blood, while arteries do not have valves due to the high pressure of blood flow.

**Hint:** Think about the structure of arteries and veins and their functions in blood circulation.

### Step 4: Analyze the fourth statement
**Statement:** "Arteries always carry blood away from the heart while veins always carry blood towards the heart."
- This statement is **partially true** but misleading because it does not account for the pulmonary circulation. The pulmonary artery carries blood away from the heart (right ventricle) to the lungs, while the pulmonary vein carries blood towards the heart (left auricle) from the lungs.

**Hint:** Recall the general rule about arteries and veins but also consider the exceptions in pulmonary circulation.

### Conclusion
After analyzing all the statements, we find that none of the statements are entirely correct. However, the third statement about arteries having valves is incorrect, while the fourth statement is misleading but has a basis in truth.

### Final Answer
The only correct statement, considering the context and exceptions, is that arteries carry blood away from the heart, and veins carry blood towards the heart, but this is true only in the systemic circulation context.