Heart and Fetal Circulation Flashcards
What are the major components of the Cardiovascular system?
Heart, Blood, and Blood Vessels
What are the major functions of the cardiovascular system?
Transporting waste products, nutrients & oxygen, and hormones
What are the four chambers of the heart?
right atrium, right ventricle, left atrium, left ventricle
What does the right side of the heart do?
Pump for pulmonary circuit
What does the right atrium do?
receives deoxygenated blood
What does the right ventricle do?
discharges deoxygenated blood into the pulmonary circuit
What does the left side of the heart do?
pump for systemic circuit
What does the left atrium of the heart do?
receives oxygenated blood
What does the left ventricle of the heart do?
discharges oxygenated blood into the systemic circuit
The right atrium receives deoxygenated blood from what?
- Superior vena cava
- Inferior vena cava
- Coronary sinus
The left atrium receives oxygenated blood from what?
- Four pulmonary veins (2 right and 2 left pulmonary veins)
What are the layers of the heart from superficial to deep?
- Epicardium
- Myocardium
- Endocardium
What are the great vessels of the heart?
- Superior Vena Cava
- Inferior Vena Cava
- Pulmonary veins
- Pulmonary trunk & arteries
- Aorta
What does the superior vena cava do?
SVC is formed by the joining of left and right brachiocephalic vein and returns blood from thoracic wall, upper limb, head and neck.
What does the Inferior Vena Cava do?
Formed by the joining of the left and right common iliac vein and returns blood from the abdomen, pelvis, and lower limb.
What does the pulmonary trunk and artery do?
Pulmonary trunk leaves the right ventricle and bifurcates into the left and right pulmonary artery
What do the four pulmonary veins do?
Pulmonary veins carry oxygenated blood from the lungs to the left atrium
What does the aorta do?
Leaves the left ventricle to send oxygenated blood to systemic circulation
What does the Atrioventricular valve do?
prevent back flow into atria
What are the two types of atrioventricular valves?
Tricuspid valance and Bicuspid (mitral) valve
Where is the Tricuspid valve?
Between right atrium and right ventricle
Where is the Bicuspid (mitral) valve?
Between left atrium and left ventricle
What does the Semilunar valve do?
Prevent back flow into ventricles
What are the two types of semilunar valves?
Aortic semilunar valve and pulmonary semilunar valve
