Blood chapter 19 Flashcards Preview

Anatomy > Blood chapter 19 > Flashcards

Flashcards in Blood chapter 19 Deck (17)
Loading flashcards...
1
Q
  1. Name 5 general functions of blood
A
  1. Transport of waste products, oxygen, nutrients
  2. Control pH and ionic composition of interstitial fluids
  3. Body temp homeostasis
  4. clotting
  5. Immune defence
2
Q
  1. If blood is a connective tissue, what constitutes an extracellular matrix
A

plasma

3
Q
  1. What percentage of blood is comprised of cellular elements?
    What percent of plasma is water?
A

45% cellular elements. the other 55% being plasma

What percent of plasma is water? 92%

4
Q

What is serum? What is hematopoiesis?

A
Serum = plasma minus clotting agents (fibrinogen and clotting factors)
Hematopoiesis = formation of formed elements from myeloid stem cells and lymphoid stem cells
5
Q
  1. What is the most abundant class of plasma protein? Why is it important?
A

Albumins- They help circulate hormones

6
Q
  1. What class of plasma protein is largely responsible for transporting other molecules through circulation?
A

Globulins

7
Q
  1. Where are plasma proteins synthesized
A

90% in the Liver

8
Q
  1. Name four general functions of plasma proteins.
A
Clotting (Fibrinogen and Prothrombin)
Transport
Immune defence (globulins)
PH balance
Nourishment of tissue cells
9
Q
  1. What is the average red blood cell count for a normal adult male?
A
  • Males: 4.5-6.3 million/microliter

* Females: 4.2-5.5 million/microliter

10
Q
  1. What is included in the “packed cell volume”?
A

Red blood cells

11
Q
  1. What is the most abundant formed element in blood?
A

Red blood cells

12
Q
  1. What is the diameter of a red blood cell how would you describe its shape.
A

7-8 micrometers

13
Q

12.5 What gives the Red blood cell its color?

A

Hemoglobin

14
Q
  1. What is the biggest advantage of the peculiar shape of the red blood cell?
A

So it can squeeze between tissues (has no nucleus)
Flexibility
Stack-ability
Surface area to volume ratio

15
Q
  1. Approximately how many O2 molecules can a normal RBC carry?
A

280 million hemoglobin each hemoglobin can carry 4 O2 molecules

16
Q
  1. What is the name given to immature red blood cells? Where are they created in adults?
A

Reticulocyte

17
Q

14.5 What is the lifespan of a RBC? At what rate are they replaced?

A

120 day lifespan

Replacement rate is 1% per day