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The blood vessels that carry blood toward the heart are called these
What are veins?
In the lungs, gas exchanges between the air and the blood occur in tiny air sacs called this
What are alveoli?
Allergic condition characterized by periodic spasms of the bronchial tubes that make breathing difficult
What is bronchial asthma?
The liquid portion of the blood is this
What is plasma?
The voice box is another name for this
What is the larynx?
The movable floor of the thoracic cavity is formed by this
What is the diaphragm?
The large blood vessel through which blood flows out of the heart and to the body is this
What is the aorta?
Heart failure caused by blockage of blood flow to the heart muscles
What is heart attack?
Cell fragments that initiate blood clotting are these
What are platelets?
The contracting and pumping phase of heart action is this
What is systole?
During inhalation, the ribs and sternum are lifted by these
What are intercostal muscles?
The flap of tissue that prevents food from going down the windpipe is this
What is the epiglottis?
A buildup of fatty and fibrous tissue in the liver, often caused by alcohol abuse
What is cirrhosis?
The organ that can be considered the body's chemical factory is this
What is the liver?
If someone has type A positive blood, the word positive refers to the presence of this factor
What is Rh factor?
The two structures within the voice box that produce the sounds of speech are these
What are vocal cords?
The buildup of excessive fluid in the lungs as a result of bacterial or viral infection
What is pneumonia?
An abnormal rushing or blowing sound that results form a damaged heart valve
What is heart murmur?
The blood vessels that contain internal valves are these
What are veins?
The blood vessels that supply the heart muscles are these
What are coronary arteries?
The dividing wall that separates the right and left chambers of the heart is this
What is the septum?
A condition in which the body's blood pressure falls to a critical low because of excessive loss of blood or plasma
What is circulatory shock?
A hereditary disorder in which the blood is unable to form clots
What is hemophilia?
The smallest tubes within the lungs are these
What are bronchioles?
The iron containing protein that allows blood cells to transport oxygen is this
What is hemoglobin?