what is the purpose of the circulatory system?
to carry oxygen and nutrients to the cells of the body and carbon dioxide and other wastes away from the cells.
a big muscle that moves the blood. Moves it out of the heart to the rest of the body and also moves blood into the heart from the rest of the body
heart
pumping blood to the lungs; contains co2 collected from the body
right side of the heart
takes in blood from the lungs and sends it to the rest of the body: contains oxygen received in the lungs.
left side of the heart
lack of oxygen
ex: when blood goes from body to the heart
deoxygenated blood
has oxygen
oxygenated blood
________ represents the deoxygenated
blue
________ _________ are also veins
Vena cavas
pump blood away from the heart
arteries
very small, very thin (walls are 1 cell thick), porous; the site where things/ gases/ nutrients are exchanges they are passed in and out of the blood through the process of diffusion (movement of particles from high to low)
capillaries
smaller than an artery, but bigger than a capillary; has valves that help the blood flow in one direction
veins
associated with the lungs
what is the importance of valves working correctly?
pulmonary,
so that it helps to push the blood in the direction that it is supposed to go. Waste products are eliminated from the body.
carries oxygen throughout the body using the protein hemoglobin
red blood cells (RBC)
responsible for fighting off a disease, part of the immune system, responsible for killing pathogens
white blood cells
little pieces of cells that help clot the blood
platelets
the liquid portion of blood that contains dissolved nutrients and waste
plasma
have to do with the type of antigen on the surface of the red blood cell.
blood types
blood types:
4 types:
_______- A antigens
_______- B antigens
_______- A and B antigens
_______- neither A or B antigens
A, B, AB, and O
Sends blood rich in oxygen back to the muscle of the heart
Heart needs its own cells to undergo respiration as well, undergo respiration.
All cells in body require cellular respiration to keep going.
coronary circulation
sending blood to the lungs to get oxygen.
pulmonary circulation
from the body comes through the superior and inferior vena cava and is collected by the right atrium. From here, it is squeezed into the right ventricle. The next squeeze sends it to the lungs through the pulmonary artery.
deoxygenated blood
Sends blood rich in oxygen to the cells of the body and it also collects waste to bring back to the heart.
Oxygen rich blood enters from the lungs through the pulmonary veins into the left atrium. It is squeezed into the left ventricle.
When the heart bea
systemic circulation
The force of your blood pushing against the walls of your arteries
blood pressure
Stronger when the heart contracts is what?
systolic
weaker when it relaxes
diastolic
normal blood pressure
120/80
high blood pressure
over 140/90
high blood pressure can lead to what?
stroke or heart attack
Narrowing of arteries because of fatty deposits (cholesterol)
"Hardening of the arteries"
Can become completely clogged
stroke
Heart attack
atherosclerosis
what is the purpose of the circulatory system?
to carry oxygen and nutrients to the cells of the body and carbon dioxide and other wastes away from the cells.
a big muscle that moves the blood. Moves it out of the heart to the rest of the body and also moves blood into the heart from the rest of the body
heart
pumping blood to the lungs; contains co2 collected from the body
right side of the heart
takes in blood from the lungs and sends it to the rest of the body: contains oxygen received in the lungs.
left side of the heart
lack of oxygen
ex: when blood goes from body to the heart
deoxygenated blood
has oxygen
oxygenated blood
________ represents the deoxygenated
blue
________ _________ are also veins
Vena cavas
pump blood away from the heart
arteries
very small, very thin (walls are 1 cell thick), porous; the site where things/ gases/ nutrients are exchanges they are passed in and out of the blood through the process of diffusion (movement of particles from high to low)
capillaries
smaller than an artery, but bigger than a capillary; has valves that help the blood flow in one direction
veins
associated with the lungs
what is the importance of valves working correctly?
pulmonary,
so that it helps to push the blood in the direction that it is supposed to go. Waste products are eliminated from the body.
carries oxygen throughout the body using the protein hemoglobin
red blood cells (RBC)
responsible for fighting off a disease, part of the immune system, responsible for killing pathogens
white blood cells
little pieces of cells that help clot the blood
platelets
the liquid portion of blood that contains dissolved nutrients and waste
plasma
have to do with the type of antigen on the surface of the red blood cell.
blood types
blood types:
4 types:
_______- A antigens
_______- B antigens
_______- A and B antigens
_______- neither A or B antigens
A, B, AB, and O
Sends blood rich in oxygen back to the muscle of the heart
Heart needs its own cells to undergo respiration as well, undergo respiration.
All cells in body require cellular respiration to keep going.
coronary circulation
sending blood to the lungs to get oxygen.
pulmonary circulation
from the body comes through the superior and inferior vena cava and is collected by the right atrium. From here, it is squeezed into the right ventricle. The next squeeze sends it to the lungs through the pulmonary artery.
deoxygenated blood
Sends blood rich in oxygen to the cells of the body and it also collects waste to bring back to the heart.
Oxygen rich blood enters from the lungs through the pulmonary veins into the left atrium. It is squeezed into the left ventricle.
When the heart bea
systemic circulation
The force of your blood pushing against the walls of your arteries
blood pressure
Stronger when the heart contracts is what?
systolic
weaker when it relaxes
diastolic
normal blood pressure
120/80
high blood pressure
over 140/90
high blood pressure can lead to what?
stroke or heart attack
Narrowing of arteries because of fatty deposits (cholesterol)
"Hardening of the arteries"
Can become completely clogged
stroke
Heart attack
atherosclerosis