exam 2 class 9 Flashcards
cardiovascular system of the heart consist of?
- blood
- blood vessels
- heart
brief function of the cardio vascular system
-materials entering the body
-materials moved form cell to cell
-materials leaving the body
connective tissue that is composed cellular elements suspended in an extensive fluid matrix called plasma
blood
in a 70 kg man how much of his body wight is blood? so how many liters of blood does he have?
7 %
5 liters of blood
fluid part of the blood
plasma
1 kg of blood occupies a volume of _____ Liter
one
2L (cells) + 3L (plasma)=?
5L
how much water=? in plasma
92%
how much proteins=? in plasma
7%
how much rest=? in plasma
1%
what ions are in the plasma of the blood
Na+ Cl- H+ K+ Ca2+ and HCO3-
99% of plasma is made of
water and proteins
the liver makes?
most plasma proteins and secretes then into the blood
except antibodies
what are the three main cellular components found in blood?
red blood cells
white blood cells
platelets
RBC’s are also called
erythrocytes
WBC’s are also called
leukocytes
platelets are also called
thrombocytes (lump, clot)
T or F RBC is the only cell in the body that has no nucleus?
true
T or F White blood cells are the only fully functional cells in the circulation
True
5 types of white blood cells
- lymphocytes
- monocytes
- neutrophils
- eosinophils
- basophils
produce specific immune responses directed agains invaders
lymphocytes
phagocytes; after migrating into tissues they develop into macrophages
monocytes
mobile phagocyte that ingest foreign substances and pathogens
neutrophils
produce toxic compounds directed agains invading pathogens
eosinophils
are also called mast cells
basophils
cell fragments that are essential for blood clotting
platelets
Neutrophils, monocytes, and macrophages are collectively known as?
phagocytes
phagocytes are called this because
can engulf and ingest foreign particles such as
bacteria (phagocytosis)
Lymphocytes are called?
immunocytes
immunocytes are called this because?
responsible for specific immune responses against invaders
Basophils, eosinophils, and neutrophils are called?
granulocytes
granulocytes are called this becuase?
because they contain cytoplasmic inclusions that give them a granular appearance.
descendants of a single precursor cell type known as the pluripotent hematopoietic stem cell
blood cells
hematopoietic stem cell os found where
found in bone marrow
the synthesis of blood cells, begins early in embryonic development and continues throughout a person’s life.
hematopoiesis
leukocyte production =
leukopoiesis (colony-stimulating factor (CSF))
red blood cell production =
erythropoiesis (erythropoietin (EPO))
platelet production =
thrombopoiesis (thrombopoietin (TPO))
plasma percentage of blood
58%
buffy coat percentage of blood?
< 1%
erythrocytes are what percentage of blood?
42%
complete blood count (CBC) provides information on?
several parameters of blood
mean corpuscular volume (MCV)?
average volume of one red blood cell
mean corpuscular hemoglobin (MCH)?
amount of hemoglobin per RBC
Mean corpuscular hemoglobin concentration (MCHC)?
amount of hemoglobin per volume of one RBC
