Unit 9 Transport In Humans Flashcards
Which chamber of the heart pumps blood into the aorta
Left ventricle
Which chamber of the heart pumps blood to the lungs in the pulomanry artery
Right ventricle
What is the septum
A wall of tissue that prevents the deoxygentated blood from the right side to mix with the oxygenated blood from the left side
what are the two upper chambers of the heart
Left and right atria
What are the two lower chambers of the heart
Left and right ventricle
Why do atria have less muscular walls than the venteicles
They only force blood into the ventricles
Cappilaries
One cell thinks. Helps substances pass easily in and out of the blood in the body tissue
Arteries
Thick Muscular and elastic walls to withstand the high pressure
Veins
Less muscle and elastic walls. Have thin walls because the pressure in veins is low
Where does the right ventricle pump blood to
The lungs
Where does the left ventricle have to pump blood to
The rest of the body
Why is the left ventricle more muscular
Has to pump blood ata a pressure that overcome greater resistances
What is the pulse
Regular swelling of the arteries in response to contraction of the heart
how do you seperate the layers of blood
Spinning it around in a centrifuge
What composes your blood
Plasma
White vlood cells
Red blood cells
Platelets
