Cardiovascular System Pt.1 Flashcards
Cardiovascular system is made up of…
Heart, blood vessels, & Blood
[heart pumps blood into blood vessels throughout the body]
Heart
(Shape and location)
🔸️cone-shaped organ
🔸️located slightly to the left side in the thoracic cavity
(in mediastinum)
🔸️rests on the diaphragm
🔸️Apex
Apex of the heart is…
🔸️Inferior aspect
🔸️The point of the heart
🔸️Left ventricle
What is mediastinum?
a central compartment in the thoracic cavity that houses various organs and structures.
Chambers of the heart are?
RA (right atrium) superior
LA (left atrium) superior
RV (right ventricle) inferior
LV (left ventricle) inferior
Atrioventricular sulcus
- external indentation between the atria and ventricles
Interventricular sulcus
- external depression between RV and LV
Veins
- carry blood to heart
Arteries
carry blood away from the heart
Great vessels
(Definition)
main veins and arteries that bring blood to and from heart
What are the 5 greater vessels?
🔸️SVC -Superior Vena Cava
🔸️IVC -Inferior vena Cava
🔸️pulmonary V (veins)
🔸️pulmonary A (artery)
🔸️aorta
SVC -Superior Vena Cava
Carries deoxygenated blood from the upper body to the right atrium
Inferior vena cava:
Carries deoxygenated blood from the lower body to the right atrium
Pulmonary artery:
Carries deoxygenated blood from the right ventricle to the lungs
Pulmonary veins:
Carry oxygenated blood from the lungs to the left atrium
Aorta:
The largest artery in the body, carrying oxygenated blood from the left ventricle to the rest of the body
Pulmonary circuit:
Right side of heart (pulmonary pump) pumps blood to lungs
Pulmonary arteries
deliver oxygen-poor (deoxygenated) blood to lungs
Gas exchange
between alveoli and pulmonary capillaries
Alveoli
tiny, balloon-shaped air sacs located at the end of the bronchioles in the lungs
pulmonary capillaries
tiny blood vessels located in the lungs that facilitate gas exchange between the bloodstream and the alveoli (air sacs).
Pulmonary veins
deliver oxygen-rich (oxygenated) blood to the left side of the heart from the lungs
Systemic Circuit: What are the 4 things.
Systemic pump
Systemic arteries
Gas exchange
Systemic veins
Systemic pump
(left side of heart)
-receives oxygenated blood from pulmonary veins and pumps it to rest of body