Red Blood (RBC) – Erythrocytes

Question 1

• the most numerous blood cell are about one thousand times more numerous than white blood cells
• 7 to 8 micrometers (um) in diameter
• 5.5 million/cu. mm. – male
• 4.9 million/cu. mm – female
• Shape – biconcave disc (7.5 um – 2.0 um)
• Anucleated – no nucleus in the RBC; but during development it will contain nucleus
• Absence of cytoplasmic organelles
• Contains oxygen carrying protein Hemoglobin that gives blood its red color
• Plasma membrane – strong and flexible
• Life span – 120 days
• Old RBC’s are removed by macrophages in spleen
• In the lung’s oxygen binds with heme iron portion to form oxyhemoglobin, when blood reaches the body tissue capillaries, hemoglobin releases oxygen first into interstitial fluid and then to cell for its cellular metabolism.

Answer 1

Red Blood (RBC) – Erythrocytes

Question 2

➢ a waste product of cellular metabolism from the tissue, will bind with globin to form carbaminohemoglobin. As blood flows to the lungs carbon dioxide is released by hemoglobin and then exhaled.

Answer 2

Carbon dioxide

Question 3

➢ production of red blood cell
➢ Site of production – Red bone marrow of certain bones

Answer 3

Erythropoiesis

Question 4

➢ Decreased the blood oxygen stimulates kidney to produce/increase hormone erythropoietin which in turn stimulates red bone marrow to produce/increase RBC and will increase also the blood oxygen.

Answer 4

Hypoxia

Question 5

➢ mature RBC

Answer 5

Erythrocyte

Question 6

➢ immature RBC

Answer 6

Reticulocyte

Question 7

Development Of Blood Cell Stem Cell

Answer 7

• Proerythroblast
• Myeloblast
• Lymphoblast
• Monoblast
• Megakaryoblast

Question 8

➢ Origin of RBC

Answer 8

Proerythroblast

Question 9

➢ Production of granulocytes

Answer 9

Myeloblast

Question 10

➢ Agranular leucocytes

Answer 10

Lymphoblast
Monoblast

Question 11

➢ Production of platelets

Answer 11

Megakaryoblast

Question 11

➢ Female = 12-14 gm
➢ Male =14- 16 gm
➢ Male has higher Hgb because testosterone found more in male stimulates synthesis of erythropoietin

Answer 11

Hemoglobin (Hgb)

Question 12

➢ (to separate) = number of RBC in whole blood
➢ percentage of volume of blood sample occupied by red cells
➢ Supernatant plasma, buffy coat, and packed RBCs
➢ Male = 45 – 52%; Female = 37 – 48%

Answer 12

Hematocrit (Hct)

Question 13

RBC Disorders:

Answer 13

• Anemia
• Hemophilia

Question 14

decrease of hemoglobin and hematocrit

Answer 14

Anemia –

Question 15

bleeding disorder

Answer 15

Hemophilia

Question 16

NEVER BACK DOWN NEVER WHAT!!!!!!!!!!!!!!!!!!?????????????????

Answer 16

NEVER GIVE UP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!