Circulatory system
thrombus
A blood clot formed within a blood vessel and remaining attached to its place of origin. Ex. deep-vein thrombus
embolus
A clot that breaks lose and travels through the bloodstream- can be dangerous if it hits your heart, lungs, brain stem
cardiac cycle
A complete heartbeat consisting of contraction and relaxation of both atria and both ventricles
ventricles
Bottom two heart chambers- These discharge blood into vessels to leave the heart.
Pulmonary veins
Deliver oxygen rich blood from the lungs to the left atrium
plasma
Liquid part of blood
Hypertension
Measures pressure of blood flow- High blood pressure, higher than 140/90
left ventricle
Pumps oxygenated blood into the aorta
right atrium
Receives deoxygenated blood from the body
Aorta
The large arterial trunk that carries blood from the heart to be distributed by branch arteries through the body.
left and right pulmonary arteries
These branch from the pulmonary trunk of the heart and carry deoxygenated blood to the lung capillaries
aortic arch
a curved blood vessel from which arteries branch to the head and neck.
pulmonary circuit
carries oxygen-poor (deoxygenated) blood from the heart to the lungs and back. Right side of heart. Low pressure circulation.
Systemic Circuit
carries oxygen-rich (oxygenated) blood returning from the lungs and back to the body tissues to supply oxygen. Left side of the heart. High pressure circulation.
Arteries
carry deoxygenated blood away from the heart, thicker with more resistance
T cells
cells that directly attack pathogens tagged with antibodies , they see the cells and kill it, cell mediated immunity. Carried by cells in the circulatory system
left and right pulmonary veins
deliver oxygenated blood to the left atrium
hemoglobin
iron-containing protein attaches to red blood cells allowing red blood cells to carry oxygen for delivery to cells
Coagulation
process of blood clotting
B cells
produce antibodies; mature in the bone marrow and tag pathogens with antibodies- carried by blood cells in the circulatory system
right ventricle
pumps deoxygenated blood to the lungs
superior vena cava
receives blood from the head and arms and chest and empties into the right atrium of the heart
left atrium
receives oxygenated blood from the lungs
veins
return oxygenated blood to the heart, thinner with less resistance
heart sounds
the closure of valves and rushing of blood through the heart cause characteristic "Lub Dub" sounds that can be heard during auscultation.
Ventricles
the two lower chambers of the heart
Capillaries
tiny vessels between the smallest arteries and veins.
atrium
two upper chambers of the heart that contract at the same time during a heartbeat
Bicuspid valve
valve between the left atrium and the left ventricle.
Tricuspid valve
valve between the right atrium and the right ventricle
