Functions and Names
The heart's natural pacemaker
sinoatrial node
Blood cells that protect the body from infection
white blood cells
Muscle layer of the heart
myocardium
Where are the surplus of red blood cells stored?
spleen
caused by a blockage of blood flow to the heart muscles
heart attack
The movement of blood to and from the kidneys
renal circulation
Through which valve does blood leave the left ventricle?
aortic semilunar
The two structures within the voice box that produce the sounds of speech
vocal cords
vocal folds
The flap of tissue that prevents food from going down the trachea
epiglottis
abnormal rushing or blowing sound from a damaged heart valve
heart murmur
The blood protein that helps the clot the blood
fibrinogen
Breathing is controlled primarily by this
medulla oblongata
Tiny air sacs found in the lungs where gas exchanges between the air and the blood
alveoli
when the body's blood pressure falls extremely low because of excessive loss of blood or plasma
circulatory shock
Which type of blood is the universal recipient because they have neither anti-A nor anti-B antibodies?
AB blood
The iron-containing protein that allows blood cells to transport oxygen
hemoglobin
The movable floor of the thoracic cavity is formed by this
diaphragm
cell fragments that initiate blood clotting
platelets
Which blood vessels contain internal valves?
veins
Another name for a voice box
larynx
Someone with positive-type blood has this presence in their blood
Rh factor
Large blood vessels that carry blood from the body into the right atrium of the heart
venae cavae
irregularly shaped pockets or air spaces in the nasal cavity which warms and moistens incoming air
nasal meatuses
the ribs and sternum are lifted during inhalation by this
intercostal muscles
The pumping and contracting phase of heart action
systole