17. Blood - Vocabulary

Question 1

Buffy coat

Answer 1

Leukocytes and platelets

<1% of blood

Question 2

Hematocrit

Answer 2

Percentage of erythrocytes in the blood
Normal hematocrit for men: 47% +/- 5%
Normal hematocrit for women: 42% +/- 5%

Question 3

Plasma

Answer 3

Straw coloured nonliving fluid matrix
90% water
10% solutes

Question 4

Plasma proteins

Answer 4

8% by weight of plasma
Contribute to plasma osmotic pressure
Other specific functions
Ex: protein hormones and antibodies (gamma globules)

Question 5

Albumin

Answer 5

60% of plasma proteins
Produced by liver
Main contributor to plasma osmotic pressure

Question 6

Formed elements

Answer 6

Erythrocytes, leukocytes, platelets

Question 7

Erythrocytes

Answer 7

Red blood cells
Anucleate cells
97% hemoglobin

Question 8

Hemoglobin

Answer 8

Heme pigment and globin protein
Globin: 4 polypeptide chains
             2 α chains and 2 β chains
Heme: ringlike with Fe2+ ion at center
             Iron can bind 4 oxygens

Question 9

Oxyhemoglobin

Answer 9

Hemoglobin carrying / bound to oxygen

Question 10

Deoxyhemoglobin

Answer 10

Reduced hemoglobin, hemoglobin after “depositing” oxygen in body tissue

Question 11

Carbaminohemoglobin

Answer 11

Formed when CO2 binds with amino acids of the globin portion of hemoglobin