exam 2 class 9

Question 1

cardiovascular system of the heart consist of?

Answer 1

1. blood
2. blood vessels
3. heart

Question 2

brief function of the cardio vascular system

Answer 2

-materials entering the body
-materials moved form cell to cell
-materials leaving the body

Question 3

connective tissue that is composed cellular elements suspended in an extensive fluid matrix called plasma

Answer 3

blood

Question 4

in a 70 kg man how much of his body wight is blood? so how many liters of blood does he have?

Answer 4

7 %
5 liters of blood

Question 5

fluid part of the blood

Answer 5

plasma

Question 6

1 kg of blood occupies a volume of _____ Liter

Answer 6

one

Question 7

2L (cells) + 3L (plasma)=?

Answer 7

5L

Question 8

how much water=? in plasma

Answer 8

92%

Question 9

how much proteins=? in plasma

Answer 9

7%

Question 10

how much rest=? in plasma

Answer 10

1%

Question 11

what ions are in the plasma of the blood

Answer 11

Na+ Cl- H+ K+ Ca2+ and HCO3-

Question 12

99% of plasma is made of

Answer 12

water and proteins

Question 13

the liver makes?

Answer 13

most plasma proteins and secretes then into the blood

except antibodies

Question 14

what are the three main cellular components found in blood?

Answer 14

red blood cells
white blood cells
platelets

Question 15

RBC’s are also called

Answer 15

erythrocytes

Question 16

WBC’s are also called

Answer 16

leukocytes

Question 17

platelets are also called

Answer 17

thrombocytes (lump, clot)

Question 18

T or F RBC is the only cell in the body that has no nucleus?

Answer 18

true

Question 19

T or F White blood cells are the only fully functional cells in the circulation

Answer 19

True

Question 20

5 types of white blood cells

Answer 20

• lymphocytes
• monocytes
• neutrophils
• eosinophils
• basophils

Question 21

produce specific immune responses directed agains invaders

Answer 21

lymphocytes

Question 22

phagocytes; after migrating into tissues they develop into macrophages

Answer 22

monocytes

Question 23

mobile phagocyte that ingest foreign substances and pathogens

Answer 23

neutrophils

Question 24

produce toxic compounds directed agains invading pathogens

Answer 24

eosinophils

Question 25

are also called mast cells

Answer 25

basophils

Question 26

cell fragments that are essential for blood clotting

Answer 26

platelets

Question 27

Neutrophils, monocytes, and macrophages are collectively known as?

Answer 27

phagocytes

Question 28

phagocytes are called this because

Answer 28

can engulf and ingest foreign particles such as bacteria (phagocytosis)

Question 29

Lymphocytes are called?

Answer 29

immunocytes

Question 30

immunocytes are called this because?

Answer 30

responsible for specific immune responses against invaders

Question 31

Basophils, eosinophils, and neutrophils are called?

Answer 31

granulocytes

Question 32

granulocytes are called this becuase?

Answer 32

because they contain cytoplasmic inclusions that give them a granular appearance.

Question 34

descendants of a single precursor cell type known as the pluripotent hematopoietic stem cell

Answer 34

blood cells

Question 35

hematopoietic stem cell os found where

Answer 35

found in bone marrow

Question 36

the synthesis of blood cells, begins early in embryonic development and continues throughout a person’s life.

Answer 36

hematopoiesis

Question 37

leukocyte production =

Answer 37

leukopoiesis (colony-stimulating factor (CSF))

Question 38

red blood cell production =

Answer 38

erythropoiesis (erythropoietin (EPO))

Question 39

platelet production =

Answer 39

thrombopoiesis (thrombopoietin (TPO))

Question 40

plasma percentage of blood

Answer 40

58%

Question 41

buffy coat percentage of blood?

Answer 41

< 1%

Question 42

erythrocytes are what percentage of blood?

Answer 42

42%

Question 43

complete blood count (CBC) provides information on?

Answer 43

several parameters of blood

Question 44

mean corpuscular volume (MCV)?

Answer 44

average volume of one red blood cell

Question 45

mean corpuscular hemoglobin (MCH)?

Answer 45

amount of hemoglobin per RBC

Question 46

Mean corpuscular hemoglobin concentration (MCHC)?

Answer 46

amount of hemoglobin per volume of one RBC