Midterm 2

Question 1

Normal RBC ct

Men

Answer 1

4.2 - 5.4 million/cubic mg

Question 2

Normal RBC ct

Women

Answer 2

3.6 - 5.0

million/cubic mg

Question 3

Overall normal RBC

Answer 3

3.6 - 5.4

million/cubic mg

Question 4

Normal Reticulocyte

Men

Answer 4

0.5 - 1.5

% of total RBC

Question 5

Normal Reticulocyte

Women

Answer 5

0.5 - 2.5

% of total RBC

Question 6

Normal Reticulocyte Index

Answer 6

1.0

Question 7

Normal Hematocrit (Hct)
Men

Answer 7

42 - 52

% of total blood in capillary tube

Question 8

Normal Hct

Women

Answer 8

36 - 48

% of total blood in capillary tube

Question 9

Increased Hct d/t?

Answer 9

Severe dehydration

Question 10

Decreased Hct d/t?

Answer 10

Anemia

Question 11

Normal Hb
Men

(Same for M/F til age 11)

Answer 11

14 - 18

g/dl %

Question 12

Normal Hb

Women

Answer 12

12 - 16

Question 13

Diurnal Rhythm of Hb?

Answer 13

Peaks @ 9am

Lowest @ 8pm

Question 14

What’s “hemopoesis”?

Answer 14

New RBC creation

Question 15

Hemopoesis: 0-2 Months?

Answer 15

Yolk Sac

Question 16

Hemopoesis: 2-7 Months?

Answer 16

Liver

Spleen

Question 17

Hemopoesis: 5 months?

Answer 17

Bone Marrow starts to function

Question 18

Hemopoesis: Full-term fetus?

Answer 18

Most all bones are producing RBC

Question 19

Hemopoesis: Adult?

Answer 19

Skull
Vertebra - Sacrum
Pelvic bones
Sternum Ribs
Proximal part of femurs

Question 20

Erythrocyte Cytoskeleton

“Diameter of RBC”

Answer 20

7-8 micrometers

Question 21

Diameter of small blood vessels?

Answer 21

2.5 micrometers

**RBCs must be very flexible!!

Question 22

Erythrocyte Cytoskeleton made up of what 4 things?

Answer 22

Actin
Protein
Alpha/Beta Spectrin
Ankyrin

Question 23

Look up Ankyrin structure & function

Answer 23

X

Question 24

Function of erythrocyte cytoskeleton?

Answer 24

Maintains concavity of cell membrane

Question 25

Erythrocyte membrane composition

Answer 25

Bi-lipid membrane
2 layers of phospholipids

*This is where cholesterol is