Blood

Question 1

Main Elements of Blood

Answer 1

• Plasma (55%)- Albumin, clotting factors, antibodies, complement.
• Formed Elements (45%)- RBC, WBC, Platelets (thrombocytes).

Question 2

Erythrocytes
(RBC)

Answer 2

Carry oxygen bound to hemoglobin.

Question 3

Leukocytes
(WBC)

Answer 3

• Active in immunity; located in blood, tissues, and lymphatic system.
• Protect agains infection and inflammation.
• Phagocytosis.

Question 4

Platelets
(Thrombocytes)

Answer 4

• Form a platelet plug and start blood clotting.
• Thrombo- clotting. -cyte- cell.

Question 5

Where do all blood cells originate from?

Answer 5

Hematopoietic Stem Cells

Question 6

Hemostasis

Answer 6

• The process that prevents blood loss from circulation when a blood vessel is ruptured.
• Hemo- blood.
• -stasis - Stopped or slowing.

Question 7

3 Steps of Hemostasis

Answer 7

• Contraction
• Platelet Plug
• Coagulation (formation of a blood (fibrin) clot)

Question 8

4 main Blood Types

Answer 8

A, B, AB, O

Question 9

Antigen

Answer 9

• Blood types’ “badge”
• A=A, B=B, AB=AB, O=No antigen (Universal Donor)
• Produce antibodies.

Question 10

Blood Type Antibodies

Answer 10

• A=Anti B
• B= Anti A
• AB= No antibodies (Universal Receiver)
• O=Anti Both (AB)