Cardiovascular System Flashcards
heart
muscular organ, located in the center of the thoracic cavity. has four chambers
atria
two upper chambers of the heart.
right atria recieves unoxygenated/oxygenated blood
unoxygenated blood returning from the body
left atria recieves unoxygenated/oxygenated blood
oxygenated blood returning from the lungs
ventricles
two lower chambers of the heart
right ventricle sends oxygen poor/rich blood
oxygen poor blood to the lungs
left ventricle sends oxygen poor/right blood
oxygen rich blood to the body
most muscular and strongest part of the heart
the venae cavae
superior vena cava and the inferior vena cava.
two large veins that return blood to the heart; the right atrium
blood flow of unoxygenated blood
venae cavae
right atrium
right ventricle
pulmonary arteries
lungs
blood flow of oxygenated blood
lungs
pulmonary veins
left atrium
left ventricle
aorta
valve
a structure two blood structures that opens and closes to permit the flow of the blood to go in the opposite direction.
between the atrium and ventricle
in the pulmonary artery
aorta
cardiac conduction system
a system of specialized muscle tissues that conducts electrical impulses that stimulate the heart to beat
Artery
vessel that carries blood away from the heart
Coronary arteries
branch off from the aorta and supply the heart muscle with blood
aorta
largest artery in the body.
begins at the left ventricle
goes through the thoracic and abdominal cavities
splits into iliac arteries at the end of the navel
pulmonary artery
begins at the right ventricle, carries o2 poor blood to the lungs
carotid arteries
major arteries of the neck
main supply of blood to the head
one on each side of the neck
Femoral artery
major aretery of the thigh
major source of blood supply to the thigh and the leg
Brachial artery
in the upper arm, the site of pulse checking during infant CPR
Radial Artery
artery of the lower arm, the artery felt when taking the pulse at the thumb side of the wrist
Posterior tibial artery
artery supplying the foot, behind the medial ankle
Dorsalis pedis artery
lies on the top (dorsal position) of the food, lateral to the large tendon of the big toe
Arteriole
smallest brance of an artery
Capillaries
tiny blood vessels, thinn walled, where the o2/co2 nutrient/waste exchange with the body’s cell takes place
pulmonary vein
carries oxygenated blood from the lungs to the left atrium of the heart
