Quiz 6 Flashcards
which blood type could be administered to anyone without risk of cross reaction
o -
constitutes approximately 45% of whole blood volume
erythrocytes
cells include a subtype that produces antibodies
lymphocytes
formed elements in the blood lose most of their organelles as they develop
erythrocytes
natural killer cells are a type of
lymphocyte
heme group contain ___ ion which allows it to bind to a molecule of oxygen
iron
in fetus the foramen ovale is an opening between the
right and left atria
vessel delievers oxygen poor blood to the heart from the tissues and organs of the abdominopelvic cavity
inferior vena cava
visceral pericardium also called
epicardium
surface feature marks the border between the atria and the ventricles
cornary sulcus
__ are irregular musuclar ridges that are prominent along the inner surfaces of the ventricles
trabeculae carneae
cardiac muscle cells linked together at the intercalated discs are found within the
myocardium
network of small arteries called ___ provides a blood supply to the externa of very large blood vessels
vasa vasorum
contains baroreceptors and chemoreceptors
carotid sinus
vasoconstriction and vasodilation occur due to sympathetic activation of which vessel layer
media
outermost layer of blood vessel which is typically thick and composed chiefly of collagen fibers with scattered bands of elastic fibers is the
adventia
functions of spleen
remove abnormal blood cells
produce lymphocytes
site for immune
storage of ion
lipids absorbed in the digestive tract enter ____ in the intestinal wall
lacteals
___ collects lymph from both sides of the body inferior to the diaphram
thoracic duct
blood is a type of
CT
__ clump together to form a temporary patch in the walls of damaged blood vessels
platelets
megakaryocytes give rise to
platelets
hemoglobin contains __ iorn atoms
4
95% of non water conten in erythrocytes is
hemoglobin
hemoglobin can bind to
both oxygen and carbon dioxide
people who are rh positive have the rh antigen on the plasma membrane of their
erythrocytes
blood type of an individual is determined at the cellular level by the
presence or absence of specific surface antigens in the plasma membrane of the erythocytes
the right ventricle has thinner muscular walls than the
left ventricle
sinoatrial node is embeeded in the wall of the
right atrium near the entrance of the svc
oxygenated blood returning from the lungs enters the heart via the
left atrium
the exchange of oxygen and carbon dixoide in cardiovascular system occurs in
capillaries
venous system normally contains ____ of the blood volume of whole blood
65-75
artery gets farther from the heart its diameter decreases and there is
increase in the amount of smooth muscle and decrease in number of elastic fibers
which arteries fuse to form basilar artery
vertebral arteries
which vessels collect blood directly from capillaries
venules
spleen location
LUQ
large lymphoid nodules that are located in the walls of the pharynx
tonsils
blood vessels and nerves enter and exit a lymph node at the ____ of the node
hilum
