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Lazoff - Circulatory

Circulatory System

QuestionAnswer
Heart Organ that pumps blood
Arteries carry blood away from the heart
Vein carry blood to the heart
left atrium receives enriched blood
right atrium receives depleted blood
enriched blood has oxygen
depleted blood has no oxygen but instead carbon dioxide
left ventricle pushes enriched blood out of the heart
right ventricle pushes depleted blood out of the heart
venules small vessels that turn into veins
capillaries small vessels that deliver oxygen and nutrients to the cells
lung exchanges oxygen for carbon dioxide
aorta the largest artery in the body, leads directly from the heart
pacemaker a group of cells that adjust the heart rate
blood the river of life, carries nutrients and oxygen to the cells
blood pressure pressure in the vessels caused by the force of the ventricles contracting
coranary artery a vessel that supplies the heart itself with blood since the heart cannot take nutrients and oxygen from the blood flowing through it
systolic the top number when reading blood pressure. This number is generated by the force of the ventricles contracting
diastolic the top number when reading blood pressure, is generated by the atria refilling
septum the tissue that divides the left and right side of the heart
pulmonary artery the artery that carries depleted blood to the lungs
vena cava 1 of 2 veins that carry blood to the heart
adrenaline a chemical that causes the heart rate to increase suddenly, often created by fearful situations
respiration the process in which oxygen and glucose react to give the cells energy
pharynx the top of throat
trachea windpipe that leads from the pharynx to the lungs
cilia tiny hairs that help to clean the air
bronchi leads air into the right or left side of the lungs
alveoli tiny sacs that move gases between air and blood
diaphragm a large dome shaped muscle at the base of the lungs make the chest cavity expand and contract
larynx voice box, contains the vocal cords
Created by: slazoff
 

 



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