bio chap 7 questions Flashcards


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1

cord blood is blood produced by__________ and filtered by_____________

the placenta? / the blood vessels in the umbilical cord

2

blood functions to maintain homeostasis in the human body by...

stopping the flow or loss of blood

moving oxygen from the lungs

moving nutrients from digestive system

regulates body temp and water volume

3

55% of whole blood is what?

plasma

4

albumin proteins in human blood functions to...

to maintain the proper water balance between blood and the interstitial fluid. they also bind to bilirubin and fatty acids.

5

what are the components of blood plasma?

water, proteins, hormones, and different small molecules.

6

the hormone erythropoietin is released due to low oxygen levels, where does it transport to stimulate red blood cell production?

to the red bone marrow

7

an increased risk for cardiovascular health problems are associated with?

high chlorestrol

8

following severe injury to tissues or a heart attack, the number of circulating white blood cells called monocytes greatly increase in number. where do these cells come from?

the red bone marrow and stem cells

9

histamine is released from this type of leukocyte the inflammatory response?

basophil

10

a damaged red blood cell is removed from circulation by?

being destroyed by larger cell called macrophages in the liver and spleen

11

unlike white blood cells, red blood cells lose ___________an___________ as they mature

nucleus and organelles

12

removal of the heme group from hemoglobin would result in?

lack of oxygen?

13

when a blood vessel gets damaged, contractions of smooth muscle referred to as ___________help constrict the vessels to reduce blood flow.

vascular spasm

14

a high hematocrit indicates?

excessive red blood cells which can thicken the bloodand increase the risk of blood clots

15

blood doping, practiced by many athletes involved in the tour de france as well as other sports, involves the illegal use of drugs to do what?

stimulates to produce more red blood cells.by (injecting erythropoietin) then cresates more oxygen.

16

as an erythroblast develops into an erythrocyte it...

filled hemoglobin and becomes a red blood cells

17

foreign cells that enter our body have unique cell surface proteins, known as _______which stimulates our body's defense attack.

antigens

18

dead and injured white blood cells are removed from circulation by the?

they are removed from the blood by the liver and spleen.

19

which of the following components of blood increase in number in response to the presence of an infectious agent?

white blood cells

20

the inflammatory response is initiated by the release of ________ from basophils.

histamine

21

eosinophils are especially important in defending the human body from infection by?

clustering around large parasites like worms. they bombard it with digestive enzymes. also helps with allergies.

22

which of the following types of white blood cells is capable of phagocytosis

monocytes

23

which type of granulocyte gives rise to antibodies?

neutrophils

24

what hormones regulates the production of platelets?

thrombopoietin

25

what occurs first in the process of homeostasis?

vascular spasm or intense contraction of blood vessels in the area.

26

what is involved directly in the process of blood clotting?

homeostasis prevents blood loss.

27

what age are you allowed to donate blood in the us?

must be at least 17 years old (16 for some states)

28

list all blood types. who can donate to whom for each one

A+ = A+ AB+

B+=B+ AB+

AB+=AB+

O+= O+ A+B+ AB+

A- =A+ A- AB+ AB-

B- =B+ B-AB+ AB-

AB- =AB+ AB-

O- = EVERYONE

A- B- AB- O-

29

A individual is O+ which antigen is on the surface of your red blood cells?

RH antigen

30

hemoytic disease of the newborn could result from what situation?

if the mother is RH neg and the father is RH positive, the baby can be RH positive

31

the Epstein-Barr virus can reduce a contagious infection of lymphocytes referred to as?

mononucleosis