blood fill in blank
Blood volume represents about ________ percent of a person's body weight.
7
the normal ph of blood?
7.4
_____ is the condition in which the oxygen carrying capacity of blood is reduced, owing to a low blood hemoglobin concentration
anemia
a fibrin network that contains trapped blood cells and platelets is called a(n) ______
blood clot
hormones called _____ are involved in regulation of white blood cell populations
colony stimulating factors
the _____ is a procedure that is used to determine the number of each of the various types of white blood cells
differential count
endothelial cells release _____ that stimulate smooth muscle contraction and accelerate the repair process
endothelins
errythopoises is stimulated by a kidney derived hormone called ______
errythropiten (EPO)
reticulocytes complete their development into _____ in the circulation
erythrocytes (RBC)
true or false the blood of a fetus and its mother are almost identical
false
____ is responsible for the RBCs ability to transport oxygen and CO2
hemoglobin
how does rhogam prevent erythroblastosis (HDN, hemolytic disease of the new born?
my answer: the babies RH+ blood is crossed through the placenta into the mothers blood and the mothers blood created anti RH antibodies against it and this is not harmful to the first baby. however if a second pregnancy occurs with another RH+ the mother already has antibodies that will attack the babies rh+ blood essentially killing off its blood cells and this can be fetal. by giving a dose of rhogam right before birth or after the mother uses those instead of making her own antibodies. real answer: If a mother who is Rh negative carries an Rh positive fetus, she will make antibodies against its Rh RBC's after being exposed to the infants blood during labor and delivery. By giving a dose of anti-Rh antibody (rhogam) just before or after delivery, the fetal red cells will be agglutinated and removed from the mothers circulation before her immune system will have time to make anti-Rh antibodies that would endanger fetus.
which of the formed elements would increase after the donation of a pint of blood?
my answer: reticulocytes, because new red blood cells are being made and the beginning state of that is reticulcyte real answer: reticulocytes would increase in number as additional numbers of immature red blood cells move into the bloodstream to compensate for the reduction in blood volume -Retculocytes or Immature RBCs increase in number after blood donation these are rapidly forming cells from the bone marrow and contain 80% more haemoglobin than the mature RBCs and help in bringing the haemoglobin back to normal. -reticulocytes are red blood cells that haven't fully developed yet
1)why do people with advanced kidney disease commonly become anemic
real answer: (1)damaged kidneys produce less erythropotein and so there is less stimulation of the marrow to produce RBC's (2)also, erythropotein is more easily lost into the urine by leaky kidneys (3)finally during dialysis treatment, the patients erythropotein is washed away. Treatment for kidney patients today includes injections of synthetic erythropotein. -Thats because kidney is the site where 95% of erythropoietin is produced. Erythropoietin is a compound which is required for the produciton of red blood cells. It gives the stimulus for the production and maturation of these cells. In advanced kidney disease as kidney is not able to manufacture sufficient amt of erythropoitin the production of red blood cells suffer and hence person becomes anaemic -When kidneys are diseased or damaged, they do not make enough EPO - As a result, the bone marrow makes fewer red blood cells, causing anemia. When blood has fewer red blood cells, it deprives the body of the oxygen it needs.
after blood is fractionated, its components are _____ for the purpose of analysis
separated
plasminogen is converted to its active form by an enzyme called
tissue plasminogen activator
true or false blood aids in the regulation of body temperature
true
true or false hemoglobin can bind and transport four molecules of oxygen
true
match the terms with the definitions: 1)albumins 2)globulins 3)immunoglobins a) antibodies for... b)are most abundant.... c)include many transport proteins..
1)B 2)c 3)a
blood is apprx. _____ % formed elements by volume
45%
Neutrophils usually make up from ________ to ________ percent of the circulating white blood cells.
50,70