Circulatory System Flashcards
the circulatory system includes
heart, blood vessels, blood
what do blood vessels do
carry blood all over and sometimes bring things to other parts of the body where they are needed
blood moves…
oxygen and nutrients to cells and carbon dioxide and other waste away from the cells
active transport…
does require energy
the heart is made of
cardiac muscle tissue
the heart is made of ___ chambers…
4
what are the names of the chambers
atriums and ventricles
the upper chambers are called
atriums
the lower chambers are called
ventricles
during a heartbeat…
both atriums pull at the same time
a _____ separates each ___ from the ____below it
one way valve
atrium
ventricle
a ____ prevents blood from flowing in between the _____ and ____
wall
atriums
ventricles
the sections of the circulatory system are:
pulmonary circ. coronary circ. systemic circ.
what brings blood from one section to the next
the beating of the heart
what supplies cells with oxygen and nutrients
the hearts blood vessels
what is the coronary system
the flow of blood to and from the heart
what happens if the coronary system is blocked and what can it result in?
oxygen and nutrients can’t reach the heart and it can result in a heart attack
what is the pulmonary system and what does it do?
the flow of blood to and from the lungs
what does blood returning from the body through the right side contain?
cellular waste
what does the cellular waste include?
molecules of carbon dioxide and substances
what diffuses into the blood
oxygen
what side of the heart does the blood return to
the left
what is systemic circulation
oxygen rich blood moves to all the organs except the heart and lungs. oxygen poor blood returns to the heart. then, nutrients and oxygen are delivered by blood to your body cells for carbon dioxide and waste. then the blood returns to heart in the veins of systemic circ
what does blood move in
blood vessels
what makes blood move
the pumping of the heart
what are arteries
blood vessels that carry blood away from the heart
after blood is pumped out of the heart, what happens
it travels through artery capieries and then veins
arteries are made of:
thick elastic walls made of connective tissue and smooth muscle tissues
the ______ventricle is connected to the pulmonary artery
right
the left ventricle is connected to the
aorta
what is a vein
blood vessels that carry blood back to the heart
what happens if blood travels backwards
the pressure of the blood against the valve causes the valve to close
what is the flow of the veins helped by
skeletal muscles
what are 2 major veins called
superior vena cava and inferior vena cava
superior vena cava
returns blood from the head and nek
inferior vena cave
returns blood from lower part of body
capillaries…
connects the veins and arteries
what are some diseases for this system
heart attack, hemophilia, high cholesterol, coronary artery disease
