Set: Circulatory and Respiratory Systems

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All 36 Terms

Term Definition
myocardium thick middle muscle layer of the heart; pumps blood through the circulatory system
atrium upper chamber of the heart that receives and holds blood that is about to enter the ventricle
ventricle lower chamber of the heart that pumps blood out of the heart
pulmonary circulation pathway of circulation between the heart and the lungs
systemic circulation pathway of circulation between the heart and the rest of the body except the lungs
valve flap of connective tissue between an atrium and a ventricle, or in a vein, that prevents backflow of blood
pacemaker small group of cardiac muscle cells in the right atrium that "set the pace" for the heart as a whole; also known as the sinoatrial node (SA)
aorta large blood vessel in mammals through which blood travels after it leaves the left ventricle
artery large blood vessel that carries blood from the heart to the tissues of the body
capillary smallest blood vessel; brings nutrients and oxygen to the tissues and absorbs carbon dioxide and waste products
vein a blood vessel that returns blood to the heart
atherosclerosis condition in which fatty deposits called plaque build up on the inner walls of the arteries
plasma straw-colored fluid that makes up about 55% of blood
hemoglobin iron-containing protein in red blood cells that transports oxygen from the lungs to the tissues of the body
lymphocyte type of white blood cell that produces antibodies that help destroy pathogens
platelet cell fragment released by bone marrow that helps in blood clotting
lymph fluid lost by the blood into surrounding tissue
pharynx muscular tube at the end of the throat that connects the mouth with the rest of the digestive tract, and serves as a passageway for air and food
trachea windpipe; tube through which air moves
larynx structure in the throat containing the vocal cords
bronchus passageway leading from the trachea to a lung
alveolus tiny air sac at the end of a bronchiole in the lungs that provides surface area for gas exchange to occur
diaphragm large, flat muscle at the bottom of the chest cavity that helps with breathing
nicotine stimulant drug in tobacco that increases heart rate and blood pressure
emphysema disease in which the tissues of the lungs lose elasticity, making breathing very difficult
aorta brings oxygen-rich blood from the left ventricle to the body
superior vena cava large vein that brings oxygen-poor blood from the upper part of the body to the right atrium
pulmonary veins bring oxygen-rich blood from each of the lungs to the left atrium
right atrium right upper chamber of heart; receives oxygen-poor blood
right ventricle right lower chamber of heart; pumps blood out of the heart
septum divides the right side of the heart from the left side
inferior vena cava vein that brings oxygen-poor blood from the lower part of the body to the right atrium
pulmonary arteries bring oxygen-poor blood to the right or left lung
left atrium left upper chamber of heart; receives oxygen-rich blood from the pulmonary veins
left ventricle left lower chamber of heart; pumps blood out of the heart
pulmonary valve prevents blood from flowing back into the right ventricle after it has entered the pulmonary artery

Set Information

Terms 36
Creator chloejeng
Created April 6, 2008
Groups None
Tag biology
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chloejeng : Changed left atrium → upper chamber of heart; receives oxygen-poor blood to left atrium → left upper chamber of heart; receives oxygen-rich blood from the pulmonary veins
Last Message: 4 months ago

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Most Missed Words

  1. lymphocyte → type of white blood cell that produces antibodies that help destroy pathogens - 7 misses
  2. emphysema → disease in which the tissues of the lungs lose elasticity, making breathing very difficult - 6 misses
  3. myocardium → thick middle muscle layer of the heart; pumps blood through the circulatory system - 5 misses
  4. hemoglobin → iron-containing protein in red blood cells that transports oxygen from the lungs to the tissues of the body - 5 misses
  5. pharynx → muscular tube at the end of the throat that connects the mouth with the rest of the digestive tract, and serves as a passageway for air and food - 5 misses
  6. larynx → structure in the throat containing the vocal cords - 5 misses
  7. bronchus → passageway leading from the trachea to a lung - 5 misses