tracing a drop of blood Flashcards
what direction does the heart go in
a circle
how many quartz of blood does our body make
6,000 quarts
pulmonary circuit
involves the right side of the heart and the blood going to the lungs
what does pulmonary mean
heart and lungs
what does the right side of our heart contain
deoxygenated blood
the right side of your heart is higher in _____
CO2
where does the deoxygenated blood return to after going through the pulmonary circuit
to the right atrium from the superior vena cava and the inferior vena cava
where does the blood from the superior vena cava come from
waist up
where does the blood from the inferior vena cava come from
waist down
what are the superior and inferior vena cava
2 largest veins in the body
after the superior and inferior vena cava, where does the deoxygenated blood go
from right atrium to right ventricle through the tricuspid valve
after the right ventricle, where does the deoxygenated blood go
through semi lunar valve into the pulmonary artery and travels to the lungs
what happens to the pulmonary artery because the deoxygenated blood need to come through
it branches into mini arteries called arterioles and connects to the capillaries
what are capillaries
thin walls, bigger tubes of blood under the skin
what does the deoxygenated blood do when it gets to the capillaries
O2 and CO2 are exchanged at air sacs in lungs (alvioli)
diffusion
after diffusion where does the oxygenated blood goes
through the venules into the pulmonary vein, to the left atrium
where does the oxygenated blood go after the left atrium
to the left ventricle through the bicuspid valve
after getting to the left ventricle where does the oxygenated blood goes
goes through the semilunar valve to the Aorta and then the rest of the body
systemic circuit
involves the left side of the heart and blood coming back from the lungs for the entire body
what does the left side of the heart contain
oxygenated blood high in O2
what does the right atrium contain
pacemaker (nervous tissue)
other names for a pace maker
S-A node
Purkinje Fibers
Tachycardia
greater than 100 beats per minute
Brady Cardia
less than 60 beats per minute
what is the job of a pace maker
to regulate beat
what are the two types of blood pressure
systole and diastole
hypertension
high blood pressure
hypotension
low blood pressure
systole
systolic pressure, top #
diastole
diastolic pressure, bottom #
what does the top number of a blood pressure mean
pressure of ventricles pumping (atria relaxing)
what does the bottom number of blood pressure mean
pressure of atria pumping (ventricles relaxing)
what can affect blood pressure
salt, weight, smoking, lack of excercise, genetics
what is the danger of a high blood pressure
stroke
indications of a low blood pressure
tired, feint
