blood

Question 1

Why is venipuncture a common technique for getting a blood sample?

Answer 1

 The veins are superficial compared to the arteries
 The walls are thinner
 Low pressure system

Question 2

 Plasma matrix is similar to the interstitial fluid with the EXCEPTION OF

Answer 2

 Respiratory gases
 Concentration of substances too large to diffus

Question 3

What arec the plasma proteinsB?

Answer 3

 Albumins (60 percent)
 Globulins (35 percent)
 Fibrinogen (4 percent

Question 4

Function of albumins

Answer 4

Albumins (60 percent)
 Transport substances such as fatty acids, thyroid hormones, and steroid
hormones
 Major contributor to osmotic pressure of the plasma

Question 5

Globulins function

Answer 5

 Antibodies, also called immunoglobulins
 Transport globulins (small molecules): hormone-binding proteins,

Question 6

Origins of Plasma Proteins

Answer 6

More than 90 percent made in liver

Question 7

Antibodies made by

Answer 7

plasma cells

Question 8

Peptide hormones made by

Answer 8

endocrine organs

Question 9

Plasma is the ____ part of the body’s blood.

Answer 9

liquid

Question 10

What is a possible consequence of decreased albumin and other
proteins in the blood?

Answer 10

 Decreased albumin would result in a loss of osmotic pressure causing
water to move out of the intravascular space.
 Decreased in immunoglobins would weaken the immune system.
 Decreased levels if carrier proteins would result in lower levels of
nonpolar molecules being transported.

Question 11

Hemoglobin

Answer 11

 The red pigment that gives whole blood its color
 Binds and transports oxygen and carbon dioxide

Protein molecule that transports respiratory gases

Question 12

Three Important Effects of RBC Shape on Function

Answer 12

1. High surface-to-volume ratio
    Quickly absorbs and releases oxygen
2. Discs form stacks called rouleaux
    Smooth the flow through narrow blood vessels
3. Discs bend and flex entering small capillaries
    7.8-µm RBC passes through 4-µm capillary

Question 13

Life Span of RBCs

Answer 13

 Lack nuclei, mitochondria, and ribosomes
 Means no repair and anaerobic metabolism
 Live about 12

Question 14

Wherev is rbc recycled?

Answer 14

 The spleen and liver are all places where the red blood cells can be
readily recycled