PRE: Cardiovascular System Flashcards
normal heart beat range and average
range: 60-80 bpm
average: 70-72
palpatory muscles
small muscles within the heart that anchor the heart valves
diastole
the relaxation phase of the heart beat
sysole
contractive phase of the heart beat
pulse
the beat of the heart as felt through the walls of the arteries
myocardial codudting cells
specialized tissue in the wall between the ventricles
aorta
the main artery that carries blood away from the heart to the rest of the body
left ventricle
one of the 4 chambers of the heart; it pumps oxygen rich blood to the body via aorta
the 6 warning signs of a heart attack
-pain in left shoulder/arm and neck
-chest pain
-shortness of breath (along with lightheadedness, sweating , cold chills, and fainting)
-indigestion/heart burn and nasea
-squeezing in chest
-fatigue (for women)
tricuspid valve
the valve that lies between the right atrium and ventricle, consisting on 3 flaps of tissue called cusps
superior vena cava
a large vein that carries blood from the head, neck, arms, and chest to the heart
pulmonary semilunar valve
the valve between the pulmonary artery and the right ventricle
endocardium
the inner lining of the heart
myocardium
specialized muscle tissue that forms the heart
pulmonary artery
carries oxygen poor blood from the right side of the heart to the lungs
venvle
a small vien
5 warning signs for a stroke
-sudden numbness and weakness in face, arm, or leg (one sided)
-difficulty speaking and understanding (confusion)
-trouble seeing and walking
-loss of balance and dizziness
-sudden and sever headaches form seemingly nowhere
3 things to help treat a stroke
-recline the person
-call 911
-give the afflicted person baby aspirin
pulmonary vein
a vein that carries oxygenated blood from the lungs to the heart
pacemaker of the heart
the tissue in the right atrium that begins the heart beat
inferior vena cava
a large vein that carries blood from the legs, feet, and organs in the abdominal-pelvic cavity to the heart
aortic semilunar valve
the valve between the left ventricle and the aorta
chordae tendonae
thread-like bands of fibrous tissue which attaches to the palpatory muscles and bi/tri cuspid valves
pericardium
the sac of fibrous tissue that surrounds the heart and roots the great blood vessels
atrioventricular valves
valves between the atria and ventricles
stroke
a blockage in the blood vessel tot he brain
capillary
smallest blood vessel
4 things about veins
-carries blood back to the heart
-oxygen poor (for the most part)
-valves to prevent any blood backup
-60% of all blood
bicuspid (mitral) valve
the valve that lies between the left atrium and ventricle, consisting of 2 flaps of tissue called cusps
right atrium
one of the 4 chambers of the heart, it receives oxygen low blood from the body, emptying into the right ventricle
left atrium
one of the 4 chambers of the heart, it receives blood full of oxygen from the lungs, emptying into the left ventricle
6 things about afteries
-oxygen rich (mostly)
-carries blood away from the heart
-has think walls in comparison to veins
-responsible from blood pressure
-decreases in size the further it is from the heart
-40% of all blood
atria
receiving chambers, dump blood into ventricles
right ventricle
one of the 4 chambers of the heart, it pumps oxygen poor blood to the lung via pulmonary artery
AV node
specialized conductive tissue at the base of the wall between the upper heart chambers
the 4 valves
-tricuspid valve
-bicuspid valve
-pulmonary semilunar valve
-aortic semilunar valve
septum
the dividing wall between both sides of the heart
