Chapter 32 - Guyton Flashcards Preview

Physiology > Chapter 32 - Guyton > Flashcards

Flashcards in Chapter 32 - Guyton Deck (15):
1

Pluripotent stem cells develop into either?

lymphoid or myeloid stem cell

2

Lymphoid stem cells develop into either?

T-cell and B-cell

3

Myeloid stem cells develop into?

eosinophil, basophil, neutrophil, monocyte (macrophage), platelets, erythrocyte

4

Main function of erythrocytes (RBCs).

transport hemoglobin

5

Normal hematocrit.

40-45%

6

Iron is transported in the blood in which form?

ferrous

7

Hormone released from kidney in response to low renal oxygenation.

erythropoietin (stimulates stem cell formation of pronormoblasts, release of reticulocytes, increase in red cell number in 5 days)

8

Where is erythropoietin produced?

peritubular interstitial cells of the kidney (always present in the plasma)

9

Normal Hg levels.

15-16 (male) gm Hg/100 mL blood, 13-14 (female) gm Hg/100 mL blood

10

Normal oxygen carrying capacity.

~21 ml O2/100 mL blood men, ~19 ml O2/100 mL blood women

11

If hematocrit is low, the percentage of reticulocytes will be greater/lower.

greater

12

Primary site of hemopoietic activity in adults.

bone marrow

13

Hemoglobin excreted as?

bilirubin

14

Plasma levels indicative of iron deficiency.

ferritin

15

Sites of functional iron vs. storage iron.

functional - RBCs, muscle, bone marrow
storage - liver, monocytes/macrophages