Circulatory System Flashcards

Questions and Answers

Where does deoxygenated blood first enter the heart, and through what?

Deoxygenated blood first enters the heart through the superior and inferior vena cava, and then flows into the right atrium.

Does oxygenated or deoxygenated blood flow through the right atrium?

Deoxygenated blood.

Does oxygenated or deoxygenated blood flow through the superior and inferior vena cava?

Deoxygenated blood.

Which vena cava is above and which one is below?

The superior vena cava is above the inferior vena cava. Signup and view all the answers

Where does the deoxygenated blood go after it has reached the right atrium through the superior and inferior vena cava?

The deoxygenated blood then flows to the right ventricle, and then through the pulmonary artery to the lungs. Signup and view all the answers

Are the superior vena cava and inferior vena cava veins or arteries?

Veins. Signup and view all the answers

Does oxygenated or deoxygenated blood flow through the right ventricle?

Deoxygenated blood. Signup and view all the answers

Does oxygenated or deoxygenated blood flow through the pulmonary artery?

Deoxygenated blood. Signup and view all the answers

Where does the blood go after it has been to the lungs, and is it oxygenated or deoxygenated blood?

The blood goes back through the pulmonary veins (oxygenated), then to the left atrium, left ventricle, and through the aorta (all oxygenated). Signup and view all the answers

How many aorta holes are at the top of the heart, and why are there more than at the bottom?

3, because they have to fight against gravity and go up towards the rest of the body. Signup and view all the answers

Which chamber of the heart has the thickest wall, and why is it important?

The left ventricle, because it has to push blood to the rest of the body. Signup and view all the answers

What parts of the heart are involved in pulmonary circulation?

The right ventricle, pulmonary arteries, pulmonary veins, and the left atrium. Signup and view all the answers

What is the difference between arteries and veins?

Arteries carry oxygenated blood to the body (exception pulmonary), while veins carry deoxygenated blood back to the heart (exception pulmonary). Signup and view all the answers

Label the heart diagram.

N/A Signup and view all the answers

Study Notes

Blood Flow in the Heart

Deoxygenated blood enters the heart via the superior and inferior vena cava into the right atrium.
Right atrium contains deoxygenated blood only.
Superior vena cava is located above the inferior vena cava.

Path of Deoxygenated Blood

After the right atrium, deoxygenated blood moves to the right ventricle, then through the pulmonary artery to the lungs for gas exchange.
In the lungs, blood absorbs oxygen and releases carbon dioxide during respiration.

Characteristics of Vessels

Both the superior and inferior vena cava are classified as veins since they carry deoxygenated blood.
Right ventricle and pulmonary artery also transport deoxygenated blood.

Return of Oxygenated Blood

After oxygenation in the lungs, blood returns through the pulmonary veins to the left atrium.
Blood is pumped through the left ventricle and then into the aorta to supply the body with oxygenated blood.

Cardiac Structure and Function

The heart has three aortic openings at the top to facilitate blood flow against gravity to the upper body.
The left ventricle has the thickest wall, essential for propelling blood throughout the entire body.

Circulatory Pathways

Pulmonary circulation involves the right ventricle, pulmonary arteries, pulmonary veins, and left atrium.
Arteries primarily carry oxygenated blood (with the exception of the pulmonary artery).
Veins predominantly transport deoxygenated blood back to the heart (with the exception of the pulmonary veins).

Description

Test your knowledge of the circulatory system with these flashcards. Each card covers key concepts such as the flow of deoxygenated blood through the heart and major veins. Perfect for students looking to reinforce their understanding of cardiovascular anatomy.