Chapter 11 Blood Flashcards
what are examples of transportation
nutrients and waste gases and hormones
what are examples of regulation
acid base balance . body temperature. fluid electrolyte balance
what are examples of protection
blood clotting and destroys pathogens
amount of blood within the body
4-6 liters
the blood cells make up how much of total blood
38% to 48%
blood plasma makes up how much of total blood
52% to 62%
normal ph range of blood is what
7.35 to 7.45
the ph range is slightly what
alkaline
viscosity of blood refers to what
thickness
what makes blood more viscous than water
the presence of cells and plasma proteins
blood plasma is approximately how much water
91%
two substances that are transported in dissolved form in the plasma
nutrients and waste products
carbon dioxide is carried in the plasma in the form of the
bicarbonate ions
hemopoietic tissue means what
a tissue in which blood cells are formed
after birth the primary hemopoietic tissue is
redbone marrow (found in flat and irregular bones)
in red blood marrow what is it called the precursor cell for blood cells
stem cells
what process do cells contantly undergo
mitosis
what are the type of cells fprmed in red bone marrow
rbcs wbs and platelets
lymphatic tissue is found in lymphatic organs such as
spleen lymphnodes and the thymus
the stem cells of lymphatic tissue produce the wbcs called
lymphocytes
red blood cells are also called what and where are they found
erythocytes red bone marrow
what cellular structure do mature rbcs lack
a nucleus
describe the appearance of rbcs
biconcave disc
in the embryo where are rbcs first produced
yolk sac
before red bone marrow takes over two fetal organs contribute to rbc production. what are they
liver and spleen
what is the oxygen carrying protein in rbcs
hemoglobin
the oxygen carrying mineral in rbcs is
iron
when do rbcs pick up oxygen
when they circulate through the pulmonary capillaries (in the lungs)
the major regulating factor for rbc production is the amount of what in the blood and tissues
oxygen
what does hypoxemia mean
low blood oxygen level
what does hypoxia mean
low oxygen in tissue
when hypoxia occurs the kidneys produce what hormone
eythropoietin
in rbc formation the last stage with a nucleus is called what
normoblast
the stage in which fragments of the er are present is what
reticulocyte
when immature rbcs are present in large numbers in circulating blood it means that there is not enough what
mature cells to transport oxygen throughout the body
nurtients needed for rbc formation
protein and iron
where is the intrinsic factor produced
stomach lining
what does the intrinsic factor do
prevent digestion of vitamin b12 and promote absorption in small intestines
life span of rbcs
120 days
where are macrophages that phagocytize old rbcs
liver spleen and bone marrow
how does the colon eliminate bilirubin
feces
iron from old rbcs are stored where
liver
range for a normal rbc count is
4.5 to 6.0
the range of a normal hematocrit level is
38%-48%
the range of normal hemoglobin is
12 -18
the 2 most important rbc type are the
ABO group and the Rh factor
how many blood types do the ABO group contain
4- A,B,AB, O
white blood cells are also called what
leukocytes
the 5 kinds of wbcs are seperated into two groups what are they
granular and agranular
what are the granular wbcs
neutrophils eosinophils and basophils
what are the agranular wbcs
lymphocytes and monocytes
what is a band cell
an immature neutrophil
what is the general function of wbcs
protect body from pathogens and provide immunity
the most abundant phagocytes
neutrophils
becomes macrophages to phagocytize pathogens or damaged tissue
monocytes
help recognize foriegn antigens
t lymphocytes
become plasma cells that produce antibodies
b lymphocytes
contains histamine which contributes inflammation and contains heparin to prevent abnormal blood clotting
basophils
detoxify foreign antigens and is important in allergic reactions and parasitic infections
eosinphils
normal range for wbcs
5,000-10,000
a high wbc count is called what and what does it indicate
leukocytosis and infection
a low wbc count is called what and what is it caused by
leukopenia and radiation
normal range for neutrophils
55%-70%
normal range for lymphocytes
20%-35%
nomal range for monocytes
3%-8%
normal range for eosinophils
1%-3%
normal range for basophils
0.5%-1%
the most abundant plasma. protein ;synthesized by only the liver
albumin
pulls tissue fluid into caplillaries to maintain bliod volume
albumin
includes fibrinogen and prothrombin and is synthesized by only the liver
clotting factors
helps prevent blood loss when blood vessels rupture
clotting factors
included antibodies and is synthesized by lymphocytes or by the liver
goblins
include carrier molecules for fats in the blood
globins
the mineral needed for chemical clotting is
calcium
a blood clot is made up of
fibrin
an abnormal clot that forms on a rough surface in a intact vessel is called
a thrombus
in chemical clotting fibrinogen is split to fibrin by
thrombin
the wbcs that carry out most phagocytosis of pathogens are
monocytes and neutrophils
what is the function of the erthypoietin
imcrease rbc production