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45 Cards in this Set
- Front
- Back
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explain the cardiovascular system
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it is a closed systam.
fxn is to deliver oxygen and nutrients and to remove carbon dioxide adn other waste products |
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superior vena cava drains VEINS ___ the diaphragm
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above
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inferior vena cave drains VEINS ___ the diaphragm
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below
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artery
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going away from the heart
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vein
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coming back to heart
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left side (red) contains what kind of blood
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oxygen rich and CO2 poor
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right side (blue) contains what kind of blood
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oxygen poor and CO2 rich
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what are the three kinds of serious membranes
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peritoneum-abdominal cavity
plurea-aroun lungs pericardium-around heart |
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what are the two separate pumps
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right side-systemic
left side-pulmanary |
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what are the four chambers of the heart
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atria-receiving side
ventricles-discharging |
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what is the order that the blood is pumped through the heart
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RA-RV-LA-LV-AROTA
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what are the three layers of the heart wall
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epicardium-outside layer, connective tissue layer
myocardium-middle layer, mostly cardiac muscle endocardium-inner layer, endothelium |
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aorta
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leaves LV
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pulmonary arteries
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leave RV
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vena cava
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enters RA
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pulmonary veins
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enter LA
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draw circulation
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vena cava-RA-RV-pul trunck-pul arteries-lungs-pul veins-LA-LV-aorta-caps
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describe RA
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openings of SVC, IVC, cornory sinus, rt AV opening.
pectinate muscle-rough anterior part. smooth posterior part |
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describe RV
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3 papillary muscles; ant. post, and septal.
tricuspid. pul truck and valve. pumping chamber |
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describe LV
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thick wall.
2 papillary muscles; ant/post. bicuspid (mitral valve). aortic valve/sinuses |
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the heart valves
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allow one way direction, 4 valves...atrioventricular valve (AV) open during heart relaxation and closed when contracting. semilunar open during contraction and close during relaxation
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what is the systemic circulation
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from left side of heart through the body tissues and back to the right side of the heart. supplies O and nutrient rich blood to ALL body organs. pump=LV
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what is the coronary circulation
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blood of the heart chambers does NOT nourish our body. has its own system..coronary areries, cardiac veins, and blood empties into the RA via the coronary sinus
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circulation is pumped to two target ares..what are they
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lungs and 'body'
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the brachiocephalic trunk is only found on what side of the body
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right
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what are the four arteries that supplt the brain
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rt & lft internal carotid AAs and rt & lft vertebral AAs
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name the vascualr pattern
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arteries-arterioles-capilaries-venules-veins-heart
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c/c veins and arteries
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veins-thin wall, flat, weak or no media, valves, no internal elastic lamina.
artery-thick wall, round, strong media, no valves, internal elasic lamina |
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define jugular and carotid
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jugular-veins
carotid-arteries |
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what is the vagus nerve and what does it do
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part of the autonomic nerrvious system (C10) and it regulates the heart and ling activity
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what is the phrenis nerve and what does it do
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nerve comes from C4 and it provides nerve supply to the diaphram
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what does the fetus get from the mother and where does it come from
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all nutrients,excretory, and gas exchange.
occurs through the placenta |
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how does blood by-pass(shunt) the liver
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thru ductues venosus
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what are the 3 blood vesels in the umbilical cord
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ONE large umb. vein- carries blood righ in nurients and O to the fetus.
TWO smaller umb. arteries- carry CO2 and debris-laden blood from the fetus to placents |
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what is the mediastinum
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central comaprtment for the thoratic cavity and contains all the throaic viscera and structures excpet for the lungs
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name some structures that are found in the superior mediastinum
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thymus, brachiocephlic v., SVC, arch of aort.
..vertebrae T4 and T5 |
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what structures are in the posterior mediastinum
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thoracic aorta and duct
azygos esophogus sympathetic trunk |
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where is the posterior mediastinum located
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deivision below the transverse lining of the sternal angle.
aterior to vert. T5-T12 |
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explain the azygos v.
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it is only found on the right side of the body.
it makes a snorkle-like shape so that the blood is not going agaist the SVC |
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what is the name of the A's that branch off the aorta
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posterior intercostal a.
..the right intercostal a. have to climb over the vertebrae |
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what is a neuorvascular bundle
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where nerve, artery, and vein run together
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what part of the body is the right lymphatic duct located
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the right side of the head, down just below right breast, and the right arm
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what part of the body is the thoacic duct located
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everything but the right side.
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what passes and leaks out of the blood caps.
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tissue fluid
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what is the fxn of the lymph caps
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to clean the tissue fluid and return them to the heart
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