7.8 quiz
An inflammation of a vein with the formation of a clot is
Thrombophlebitis
The valve between the right atrium and right ventricle that prevents blood from flowing back into the right atrium is the
Tricuspid valve
An embolus is a foreign substance circulating in the bloodstream.
True
Hemaglobin carries both oxygen and carbon dioxide.
True
The small branches of arteries are called arterioles.
True
aplastic anemia is a result of injury to or destruction of the bone marrow.
True
Dilated, swollen veins that have lost elasticity and cause stasis, or decreased blood flow, are called
Varicose
The blood vessels that carry blood away from the heart are the
Arteries
Neutrophils,monocytes,thrombocytes and lymphocytes are all different types of leukocytes.
False
Plasma is approximately 75 percent water with many suspended substances.
False
The double-layered membrane that covers the outside of the heart is the endocardium.
False
The period of ventricular contraction in the heart is called diastole.
False
hypotension is high blood pressure
False
Which acid is required for the development of mature erythrocytes?
Folic acid
The bright red color of blonde indicates
Hemoglobin-carrying oxygen
an inherited disease that occurs almost exclusively in males and in which the blood is unable to clot is
Hemophilia
The chamber of the heart that receives oxygenated blood as it returns to the lungs is the
Left atrium
valve between left atrium and left ventricle that prevents blood from flowing back into the left atrium is the
Mitral valve
The chamber of the heart that receives deoxygenated blood as it returns from body cells is the
Right atrium
The muscle layer of the heart is the
myocardium
How much blood does the average adult have in his or her body?
4 to 6 quarts
The number of erythrocytes in one cubic millimeter of blood is
4.5 to 5 million
A normal leukocyte count per cubic millimeter of blood is
5,000 to 9,000
Arteriosclerosis is a ballooning out of, or saclike formation on, an artery wall
False
The largest artery in the body is the
aorta
The blood cells that contain hemoglobin are the
erythrocytes
The blood cells that fight infection are the
leukocytes