circulatory system

Question 1

this is the fluid component of blood, 55% of the volume, carries ions, proteins, nutrients, and gases

Answer 1

plasma

Question 2

T or F. marathon training can increase plasma volume

Answer 2

true

Question 3

thin white layer in a centrifuge, contains white blood cells, as well as platelets. compose 1% of the blood volume

Answer 3

buffy coat

Question 4

cell fragments that broke off special cells called megakaryocytes. technically are not cells and do not have a nucleus

Answer 4

platelets

Question 5

technical term for blood clotting

Answer 5

coagulation

Question 6

coagulation cascade

Answer 6

1. clotting factors causes…
2. prothrombin —–> thrombin (this causes…)
3. fibrinogen —–> fibrin

Question 7

a fibrous molecule that forms the skeleton of a blood clot where platelets pile on top

Answer 7

fibrin

Question 8

platelets pile on top of fibrin to form

Answer 8

platelet plug

Question 9

if the platelet plug does not disintegrate, it might break off and get lodged somewhere else. if this occurs in the heart, it can result in a? if it occurs in the brain it might result to a?

Answer 9

heart attack ; stroke

Question 10

makeup 45% of the blood volume, these carry gases, specifically oxygen and carbon dioxide in the blood

Answer 10

erythrocytes or RBCs

Question 11

the proportion of your blood that is composed by RBCs

Answer 11

hematocrit

Question 12

the body releases this hormone from the kidneys if it wants to stimulate more erythrocyte production

Answer 12

erythropoietin (EPO)

Question 13

when RBCs mature they eject what?

Answer 13

their nuclei, organelles- makes them extremely energy efficient but they cannot live very long

Question 14

erythrocytes lifespan

Answer 14

about 120 days

Question 15

where are RBCs sent for destruction

Answer 15

spleen

Question 16

erythrocytes express sugar-coated proteins on their cell surface known as

Answer 16

glycoproteins

Question 17

when the mother is Rh- but the fetus is Rh+, does the mother’s immune system produce antiRh antibodies?

Answer 17

it does. mothers are given antiRh antibodies to prevent them from making it themselves

Question 18

this circulation takes oxygen-rich blood, delivers it to the body’s tissues, and then returns the blood, now depleted of oxygen, back to the heart

Answer 18

systemic circulation

Question 19

the circulatory system through the lungs, where the blood flows through vessels that run adjacent to the air sacs, or alveoli, of the lungs

Answer 19

pulmonary circulation