6530487622 | Apex | Bottom, pointed region of the heart; points to the left hip |  | 0 |
6530487623 | Base | Top, broad region of the hear; points to the right shoulder |  | 1 |
6530487624 | Pericardium | Double layered membrane surrounding the heart | | 2 |
6530487625 | Visceral pericardium | Membrane that lies on the heart | | 3 |
6530487626 | Parietal pericardium | Membrane that lines the region of the thoracic cavity that the heart is in (called he mediastinum) | | 4 |
6530487627 | Epicardium | The thin serous membrane comprising the outer surface of the heart (the epicardium is the same structure also called the visceral pericardium) | | 5 |
6530487628 | Myocardium | Thick middle layer comprised of cardiac muscle tissue; pumps | | 6 |
6530487629 | Endocardium | Smooth inner surface of the heart chambers; reduces friction for smooth flow | | 7 |
6530487630 | Septum | Wall on the interior of the heart that separates the right and left sides. | | 8 |
6530487631 | Chambers | Hollow areas of the heart | | 9 |
6530487632 | Right atrium | receives deoxygenated blood from the vena cava
(from the body); small; not very muscular, because it simply holds blood | | 10 |
6530487633 | Right ventricle | receives deoxygenated blood from the right atrium;
muscular to pump blood to the lungs | | 11 |
6530487634 | Left Atrium | received oxygenated blood from the pulmonary veins
(from the lungs); small; not very muscular, because it simply holds blood | | 12 |
6530487635 | Left ventricle | receives oxygenated blood from the left atrium; very
muscular to pump blood to the body | | 13 |
6530487636 | Chordae tendineae | The heart strings; anchor the valve flaps | | 14 |
6530487637 | Valves | Prevent backflow | | 15 |
6530487638 | Right atrioventricular valve (Tricuspid) | has 3 flaps; empties the right
atrium into the right ventricle | | 16 |
6530487639 | Left atrioventricular valve (Bicuspid; mitral valve) | has 2 flaps; empties the
left atrium into the left ventricle | | 17 |
6530487640 | Right semilunar valve (Pulmonary semilumar valve) | 3 flaps; allows the
blood to pass from the right ventricle into the pulmonary artery | | 18 |
6530487641 | Left semilunar valve (aortic semilunar valve) | 3 flaps; allows blood to pass
from the left ventricle to the aorta | | 19 |
6530487642 | Vessels | Transport blood throughout the body | | 20 |
6530487643 | Veins | Carry deoxygenated blood from the body to
the heart (*exception the pulmonary vein carries
oxygenated blood from the lungs to the heart) | | 21 |
6530487644 | Arteries | Carry oxygenated blood from the heart to
the body (*exceptionthe pulmonary artery carries
blood to the lungs from the heart) | | 22 |
6530487645 | Capillaries | Where gas exchange takes place;
connects arteries to veins | | 23 |
6530487646 | Venule | Smallest vein | | 24 |
6530487647 | Arteriole | Smallest artery | | 25 |
6530487648 | Vena cava | Largest vein | | 26 |
6530487649 | Aorta | Largest Artery | | 27 |
6530487650 | Tunica intima | Innermost layer;
membranous and smooth to reduce
friction of the blood (only layer found
in capillaries) | | 28 |
6530487651 | Tunica media | Middle layer;
muscular to contract or dilate | | 29 |
6530487652 | Tunica externa | Outermost layer;
fibrous to support | | 30 |
6530487653 | Blood flows from the aorta to the | Arteries | | 31 |
6530487654 | Blood flows from the Arteries to the | Arterioles | | 32 |
6530487655 | Blood flows from the Arterioles to the | Capillaries of the body | | 33 |
6530487656 | Blood flows from the capillaries of the body to the | Venules | | 34 |
6530487657 | Blood flows from the Venules to the | Veins | | 35 |
6530487658 | Blood flows from the Veins to the | Vena Cava | | 36 |
6530487659 | Blood flows from the Vena Cava to the | Right atrium | | 37 |
6530487660 | Blood flows from the Right atrium to the | Tricuspid | | 38 |
6530487661 | Blood flows from the Tricuspid to the | Right ventricle | | 39 |
6530487662 | Blood flows from the Right ventricle to the | Pulmonary semilunar valve | | 40 |
6530487663 | Blood flows from the Pulmonary semilunar valve to the | Pulmonary artery | | 41 |
6530487664 | Blood flows from the pulmonary artery to the | Capillaries of the lungs | | 42 |
6530487665 | Blood flows from the capillaries of the lungs to the | Pulmonary veins | | 43 |
6530487666 | Blood flows from the pulmonary veins to the | Left atrium | | 44 |
6530487667 | Blood flows from the left atrium to the | Bicuspid | | 45 |
6530487668 | Blood flows from the bicuspid to the | Left ventricle | | 46 |
6530487669 | Blood flows from the left ventricle to the | Aortic semilunar valve | | 47 |
6530487670 | Blood flows from the aortic semilunar valve to the | Aorta | | 48 |
6530487671 | Lubb | Is from the AV valves closing; it is a longer and
louder sound | | 49 |
6530487672 | Dupp | Is from the SL valves closing; it is a shorter
and softer sound | | 50 |
6530487673 | Sphygmomanometer | Measures blood pressure | | 51 |
6530487674 | Intrinsic Conduction System | Controls the pumping of the heart in conjunction with the autonomic nervous system | | 52 |
6530487675 | Sinoatrial node (SA node) | The pacemaker;
jumps starts the impulse that makes the heart
beat; located on the right atrium | | 53 |
6530487676 | Atrioventricular node (AV node) | Between the
right atrium and right ventricle | | 54 |
6530487677 | Bundle of His | Leaves the AV node and lead to
the septum | | 55 |
6530487678 | Bundle branches | Divisions of the Bundle of His
that travel down the septum of the heart | | 56 |
6530487679 | Purkinje fibers | Smaller divisions that travel
throughout the heart | | 57 |
6530487680 | The heart muscle contracts from the bottom up | As the impulse leaves the purkinje fibers __________________________________________ | | 58 |
6530487681 | Fetal Ciculation | In the umbilical cord between
the mom and the baby , there is
one large umbilical vein and two
small umbilical arteries. The
vein carries nutrient rich blood
and oxygen to the baby and the
arteries carry wastes and carbon
dioxide from the baby. | | 59 |
6530487682 | Pulse | The expansion and recoil of the arteries with each beat of the left ventricle; average adult is 70-76 beats per minute at rest | | 60 |
6530487683 | Common pulse points | common pulse points:
temporal artery: in the temple on the
side of the head
carotid artery: in the neck
brachial artery: in the upper arm
femoral artery: in the upper leg
popliteal artery: behind the knee | | 61 |
6530487684 | Blood Pressure | Pressure exerted by the blood
on the inner wall of the vessel; it
is highest in the aorta and
lowest in the vena cava; this is
why cut arteries spurt blood and
cut veins flow | | 62 |
6530487685 | Systolic pressure | Is from the ventricles contracting | | 63 |
6530487686 | Diastolic pressure | Is from the ventricles relaxing | | 64 |
6530487687 | Average blood pressure | 120/80 (top # is systole; bottom # is diastole) | | 65 |
6530487688 | Factors that affect blood pressure | • friction in the vessels (from plaque build up)
• age
• weight
• exercise/activity
• emotions
• diet
• body temperature
• drugs | | 66 |
6530487689 | Hypotension | Low blood pressure; systolic below 100 | | 67 |
6530487690 | Hypertension | High blood pressure; systolic above 140 | | 68 |
6530487691 | Vasodilator | Alcohol is an example | | 69 |
6530487692 | Vasoconstrictors | Nicotine and caffeine are examples | | 70 |
6530487693 | Atherosclerosis | Narrowing of
the arteries on the inside, due to
deposits on the inner walls
(early arteriosclerosis) | | 71 |
6530487694 | Arteriosclerosis | Reduced
elasticity of the arteries;
hardening of the arteries | | 72 |
6530487695 | Aneurysm | Ballooning of a vessel; can rupture and cause death | | 73 |
6530487696 | Varicose Veins | Weakening of the valves in a vein causing backflow
and blood pooling; causes sagging of the vessel and
weakening of the vessel wall | | 74 |
6530487697 | Fibrillation | Rapid shaking of the
heart muscle, that
makes it useless as a
pump; can lead to
heart attack | | 75 |
6530487698 | Tachycardia | Rapid heart rate (usually more than 100 beats per
minute); symptoms include sweating, palpitations, chest pain | | 76 |
6530487699 | Bradycardia | Slow heart rate (usually less than 60 beats per
minute); symptoms include dizziness, tired, short of breath | | 77 |
6530487700 | Angina | pain from the
myocardium being
deprived of oxygen | | 78 |
6530487701 | Myocardial infarction | heart attack; death of heart
cells from severe angina | | 79 |
6530487702 | Congestive heart failure | Heart gets worn out from: old
age; hypertension;
arteriosclerosis; heart attack | | 80 |