APPK 1.7 - Circulatory system Flashcards
What is the main artery that leaves the heart?
Aorta
The __________ carries deoxygenated blood to the lungs & the _____________ carries newly oxygenated blood from the lungs into the left atrium of the heart.
1) Pulmonary artery
2) Pulmonary veins
What are the names of the 4 chambers of the heart?
Left & Right atriums,
Left & Right ventricles
T/F: Superior & inferior vena cava returns deoxygenated blood from the body to the heart
True
T/F: Ventricles are the superiorly-located chambers of the heart & sits directly above the atriums.
False; Atriums are the superior chambers & ventricles are located directly inferior to them on either side of the septum.
What are the functions of the circulatory system? (3)
- Transportation; oxygen, hormones & nutrients TO body cells & carries AWAY waste (carbon dioxide)
- Regulation; body temperature w/ integumentary system
- Protection; clotting to prevent excessive blood loss & WBCs protect from disease
What are the 2 circuits of blood flow?
Pulmonary; re-oxygenation of blood via the lungs
Systemic; whole body, oxygenated blood flows OUT from the heart, deoxygenated blood RETURNS via vena cava/veins/venules.
Define: cardio
Heart/pertaining to heart
Define: peri
Around
Define: phleb
Veins
Define: scle/sclero
Hard/hardening
Define: thromb
Clot
Define: hemo/hemto
Blood
Define: vas/vaso
Vessel/duct
Blood is compromised of 2 main components; 55% ______ & 45% __________.
1) Plasma
2) Formed elements