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48 Cards in this Set

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What does the double layered membrane of the pericardium protect?
the heart
The heart wall is made of what three layers?
epicardium (outer)
myocardium (middle)
endocardium (inner)
long story
myne
ended
what arterial system supplies blood to the heart?
coronary
Contractions of the muscle fibers in waht layer drive circulation of the blood in the heart?
myodcardium
myo
What are the left and right chambers( atria's) separated by?
muscular septum
tricuspid
between right atrium and right ventricle, three cusps, prevents blood flow in to right atrium
mitral
between la and lv, 2 cusps, prevents flow from lv into la. aka semilunar valve
pulmonary
semilunar valve with 3 cusps, between pulmonary trunk and right ventricle
aortic vavle
semilunar valve w/3 cusps. between aorta and lv, prevents flow from aorta into lv
who distinguished arteries?
herophilus
what did herophilus think escaping air was replaced with?
blood
who distinguishd arterial and venuous blood?
Galen
where did galen think nevuous came from
the liver
Who was the first to accuractly descrie the cirrculation of blood?
Ibn Nafis
what year did ibn nafis find the right way the circulation worked?
1268
who located the valves?
hieronymous
Who had the most detailed drawings of the circulatory system?
william harvey
who discovered blood flow is continuous and in one direction?
William harvey
What does the aorta branch into?
brachiocephalic
common carotoid artery
subclavian artery
What shape in the aorta?
arch
what does the interstitual fluid re-enter the body as?
lymph
what are the four branches of the descending aorta?
gastric
hepatic
splenic
femoral
What body part initiates asdn established the hearts rythm by firing action potentials at a rapid rate?
simoatrial node
aka pacemaker
What graphically record the electrical activity of the heart?
electrocardiograms ECG's
What is the liquid matrix making up 50-60% of blood and made mostly of water?
plasma
what is plasma a solvent for?
gases
nutrients
proteins
ions
nitrogens
wastes
and hormones
what are the three plasma proteins?
fibriginogen
albumin
globulin
what are erythrocytes?
rec blood cells, dsic shaped
lose nuclei
when do red blood cells produce that helps oxygen stick to them?
hemogoblins
how long do red blood cells live for?
120 days
What are Leukocytes?
white blood cells
Where are white blood cells produced?
bone marrow or lymphoid tissue
how do lymphiocytic leukocytes inactivate foreign substances?
producing antibodies
What arwe the two main groups of white blood cells?
granulocyttes and
nongranulocytes
What are the 5 types of defensive leukocytes?
neutrophils
eosinphils
basophils
lymphocytes
monocytes
What do the arteries do?
carry oxygenated blood AWAY from the heart into the capillaries
What do the veins do?
carry de-oxygenated blood and CO2 rich blood back to heart
What plasma protein does the most homeostatic activity in blood?
albumin
What is the leading cause of death in the US?
coronary heart disease (CHD)
What causes an aneurysm?
blockage and pressure that results
Wht can be used to diagnose CHD?
electrocardigramas
HGH
metabolism and growth
TSH
secretion of thyroid hormones
FSH
stimulates sperm production in men
and egg maturation and estrogen secretion in women
LH
stimulate stestosterone release in men, estrogen, HORMONES
PRL
milk production
ACTH
adrenal cortex
MHS
increases skin pigmentation