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BIO 431 EXAM 1 STUDY GUIDE QUESTIONS AND ANSWERS
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BIO 431 EXAM 1 STUDY GUIDE QUESTIONS AND ANSWERS
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BIO 431 EXAM 1 STUDY GUIDEQUESTIONS AND ANSWERS
Function of blood - Answer-transportation, regulation, protection
characteristics of the blood - Answer-Thicker than water, 100.4 degrees F, pH=7.35-
7.45, 4-6 liters in the body, dependent on body mass.
hematocrit - Answer-percentage of blood volume occupied by red blood cells
plasma protein that plays a role in blood clotting - Answer-fibrinogen
Hemopoiesis - Answer-production of formed elements or blood cells
A megakaryoblast will develop into - Answer-platelet
Erythopoietin - Answer-stimulates the production of red blood cells
Ferritin - Answer-iron storage protein in liver, muscles, spleen
function of red blood cells - Answer-transport oxygen and carbon dioxide
characteristics of reticulocytes - Answer-immature erythrocyte, large, non-nucleated,
contains organelles
phagocytic cells - Answer-neutrophils and macrophages
blood components involved in reducing blood loss from damaged blood vessel -
Answer-platelets help stop blood loss from damaged blood vessels by forming a platelet
plug
blood cells that phagocytize antigen-antibody complexes and is effective against
parasitic worms - Answer-B lymphocytes, in response to the presence of foreign
substances (antigens) differentiate into tissue plasma cells that produce antibodies
T lymphocytes - Answer-main soldiers in immune system defense of the body against
microbial invaders
Diapedisis is a process in which - Answer-a. Neutrophils migrate from the bloodstream
to an injured tissue site.
Thrombopoietin - Answer-hormone from liver stimulates platelet formation and develop
into megakaryoblasts
, Response to a damaged blood vessel - Answer-vascular spasm, platelet plug, blood
clotting
maternal antibodies attack fetal blood cells during second pregnancy - Answer-mom is
Rh negative and fetus is Rh positive+
Prostacyclin - Answer-inhibits blood clotting and vasoconstriction and platelet release
Isoantigens - Answer-genetically determined blood group antigens on RBCs
Agglutinogens - Answer-antigens on the surface of the RBC that is the basis for blood
typing
which precursor cells give rise to granular leukocytes? - Answer-myeloblast
which precursor cells give rise to agranular leukocytes? - Answer-lymphoblast
serum - Answer-plasma without clotting factors
megaloblastic anemia - Answer-a blood disorder characterized by anemia in which the
red blood cells are larger than normal. caused by inadequate B12 or folic acid intake
Anemia - Answer-A condition in which the blood is deficient in red blood cells, in
hemoglobin, or in total volume.
Characteristics of erythrocytes - Answer--biconcave discs
-1/3 of volume is hemoglobin
-able to readily squeeze through capillaries
-lack nuclei and mitochondria
Characteristics of platelets - Answer-flat, no nucleus
Rh blood group - Answer-Category of blood type. Rh is positive, without it is negative
Mediastinum - Answer-area between the lungs containing the heart, aorta, venae
cavae, esophagus, and trachea
Pericardium - Answer-Membrane surrounding the heart
pericardial fluid - Answer-serous fluid between parietal & visceral pericardium
layers of pericardium - Answer-(outer) fibrous and (inner) serous
serous pericardium - Answer-composed of a parietal layer and a visceral layer
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