Test 3 Flashcards
(44 cards)
what are the four chambers of the heart?
two atria and two ventricles
what are the four valves of the heart?
tricuspid, pulmonary, mitral, and aortic
thick cardiac muscle tissue in the heart chambers
myocardium
single layer of epithelium that lines the chambers of the heart and covers the heart valves
endocardium
thin membrane that attaches to the exterior surface of the myocardium
epicardium
contraction
systole
relaxation
diastole
heart layer that protects
pericardium
ensure a one way system of blood flow
cardiac valves
projections of the cardiac valves
cusps
tendons that hold the cusps in place and are attached to the inner walls of the heart by small papillary muscles
chordae tendineae
the cardiac valve opening is too narrow
stenosis
when blood leaks back in the cardiac valve
regurgitation
blood vessels
arteries, arterioles, veins, venules and capillaries
where do arteries get blood?
from the heart
what do veins do?
give blood to the heart
what is blood made of?
plasma, blood cells, and waters
what is plasma made of?
hormones, nutrients, and waste products
difference between cardiac arrest and MI
cardiac arrest person will be unconscious, heart attack person will be conscious. Cardiac arrest is electrical problem, heart attack is circulation problem.
leukemia fatal in less than 6 months if not treated
acute leukemia
slow progression leukemia
chronic leukemia
What are the two types of cells involving leukemia?
myeloblasts and lymphoblasts
system that regulates and integrates the body’s metabolic activities
endocrine system
controls the function of the endocrine glands through its neural and hormonal paths
hypothalamus