Chapter 19

Question 1

what are the 5 functions of blood

Answer 1

MAIN FUNCTION IS TO BE A TRANSPORTER

1. delivers oxygen from lungs to tissues
2. transports hormones and nutrients that were absorbed from digestive tract, absorbs waste
3. protection and transporting of WBCs and antibodies
4. acid-base balance and neutralizes lactic acids
5. regulates body temp.

Question 2

what are the three general characteristics of blood?

Answer 2

1. 38 degrees C (100.4 degrees F) is normal temp
2. high viscosity
3. slightly alkaline PH (7.35-7.45)

Question 3

what is plasma?

Answer 3

• water
• albumin protein
• nutrients, electrolytes, hormones, gases

Question 4

buffy coat

Answer 4

WBCs and platelets

Question 5

hematocrit

Answer 5

volume % of RBCs

Question 6

albumin is..

Answer 6

a transporter of fatty acids, thyroid hormones, and some steroids

Question 7

globulin is..

Answer 7

antibodies for defense

transport hormones, metals, steroid, and lipoproteins

Question 8

fibrinogen is..

Answer 8

clotting agent

conversion to fibrin leaves serum

Question 9

serum

Answer 9

clear plasm fluid with proteins removed, no clotting agents

Question 10

how long do erythrocytes live?

Answer 10

120 days

Question 11

each chains contains…

Answer 11

a single heme which contains one iron.

4 hemes = 4 Fe= 4 o2

Question 12

blood of oxyhemoglobin

Answer 12

bright red, usually artery has been hurt

Question 13

blood of deoxyhemoglobin

Answer 13

dark red

Question 14

rouleaux

Answer 14

when RBCs stack like dinner plates and not stick together, they can bend and flex without injury

Question 15

erythropoiesis

Answer 15

making of new RBC’s maintained with negative feedback

Question 16

erythroprotein

Answer 16

essentail hormone of RBC, released by kidneys in response to low O2 and iron availability