Red Blood Cells/Erythrocytes

Question 1

What percentage of cells is RBCs?

Answer 1

98%

Question 2

What is hematocrit?

Answer 2

the percentage of RBCs in blood

Question 3

What are RBCs also called?

Answer 3

erythrocytes

Question 4

What protein makes blood cells?

Answer 4

hemoglobin (Hb)

Question 5

What structure is missing from blood cells?

Answer 5

no nuclei

Question 6

What would happen if a person has low iron?

Answer 6

can’t transport oxygen

Question 7

What is hematopoieses?

Answer 7

formation of blood cells

Question 8

Where does hematopoiesis occur?

Answer 8

in bone marrow

Question 9

What disorder causes blood to be abnormally shaped?

Answer 9

sickle cell anemia, beta thalassemia

Question 10

What hormone causes the production of RBCs

Answer 10

EPO, erythropoietin

Question 11

What effect does EPO have on athletic performance?

Answer 11

enhances performance and increases stamina

Question 12

What is oxygemoglobin?

Answer 12

plenty of oxygen; bright red

Question 13

What is deoxyhemoglobin?

Answer 13

low oxygen; dark red

Question 14

Blood returns to the heart through ___ ?

Answer 14

veins - blood delivers oxygen to tissues then returns to the heart

Question 15

Blood leaves the heart through ___ ?

Answer 15

arteries - the heart sends blood to the lungs where is is oxygenated and sent to tissues

Question 16

Veins and arteries meet at ___ ?

Answer 16

capillaries - deliver oxygen to tissues

Question 17

What color is blood that is drawn from an artery?

Answer 17

bright red

Question 18

What causes sickle cell?

Answer 18

genetic mutation

Question 19

What are symptoms of sickle cell?

Answer 19

abnormally shaped cells, can’t carry oxygen efficiently, splenomegaly, fatigue, strokes (causes blood clots)