Red Blood Cells
A normal RBC count ranges from ________ million cells per microliter.
4.5 to 6.0
thrombocytopenia
What are WBCs called?
Leukocytes
What does the right side of the heart do?
It receives blood from the body and pumps it to the lungs.
The amount of blood pumped by a ventricle in one beat is
stroke volumn
Blood cells are the only human cells without a
nuclei
What platelet count per microliter indicates thrombocytopenia?
Less than 150,000
5,000-10,000
The left ventricle has THIN walls because the blood it pumps is going to the body.
True or False
False
The coronary arteries are branches of the ____ and supply ____ to the myocardium.
aorta/oxygen
What RBC count would indicate anemia?
Less than 4.5 million cells per microliter
What is thrombopoietin? What does it do?
Thrombopoietin is a hormone produced by the liver that increases the rate of platelet production.
What is leukocytosis and what does it indicate?
High WBC count
Infection
The pulmonary semilunar valve prevents backflow of blood from the pulmonary artery to the right ventricle.
True or false
true
capillaries
The test that measures the percent of RBCs in the blood is called
a hematocrit
What mineral is necessary for chemical clotting?
Calcium
Eosinophils
The SA node is located in the wall of the right ventricle.
True or False
True
The fetal structure that permits blood to flow from the right atrium to the left atrium is the
foramen ovale
The laboratory test for hemoglobin is a measurement in _____ and a normal range is _______.
grams
12-18
The term for a clot that travels to another part of the vascular system is
embolism
How many classifications of WBCs are there?
5
The veins that return blood from the lungs to the left atrium are the
pulmonary veins
Bilirubin is formed from
hemoglobin of old RBCs.