Blood 1
What blood type is considered universal recipients?
AB+
Agglutination in the test tube with Rh antibodies indicates that the blood has Rh antigens but no A or B antigens. What is the blood type?
O+
What is the purpose of the heart?
to pump blood throughout the body
What do we call vessels that RETURN oxygen poor blood back to the heart?
Veins
What is the approximate size of your heart?
The size of your fist
The 3 main components of blood
Plasma, WBCs, & RBCs
Why are RBCs unable to undergo mitosis?
Lack a nucleus (anucleate)
What are the 4 main chambers of the heart?
right atrium, right ventricle, left atrium, left ventricle
What is the purpose of heart valves?
To prevent backflow of blood from ventricle to atrium (against the flow)
How much blood does the average heart pump each day?
2,000 gallons
What fragment of cells is responsible for forming clots?
Platelets
What is hematopoiesis? And where does it occur?
Hematopoiesis is the formation of blood cells and it occurs in the bone marrow.
What 2 chambers of the heart contain blood with high levels of carbon dioxide?
right atrium & right ventricle
Identify 2 examples of blood vessels
arteries, capillaries, veins
What is responsible for the lub-dup sound of the heart?
The opening/closing of the valves
What type of WBC is the most numerous & functions as phagocytes and engulf foreign invaders?
Neutrophils
An agglutination test has revealed the following results. (Agglutination in A & B but not Rh)
Identify all possible donors for this individual.
A-, B-, O-
Where does the right ventricle send blood to?
Pulmonary trunk and pulmonary arteries
What is the purpose of circulation?
supply O2 and nutrients and remove waste
What is the ideal blood pressure for an adult?
120/80
5 main functions of blood
1 - Transport gases, 2 - regulate pH, 3 - coagulate, 4 - provide immunity, 5 - stabilize body temperature
What are the 3 stages of hemostasis?
Vascular spasms
Platelet plug formation
Coagulation (blood clotting)
What is the difference between the pulmonary & the systemic circuit?
Pulmonary circuit carries blood between the lungs and the heart.
Systemic circuit carries blood between the heart and the rest of the body.
What is a heart attack?
caused by a blockage in one of the coronary arteries, disrupting flow of oxygenated blood to the heart muscle
What is a heart murmur?