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Body works Cheat Sheet (DRAFT) by

This is a draft cheat sheet. It is a work in progress and is not finished yet.


From the body
Superi­­or­/­I­nf­­erior Vena Cava
Right Atrium
Right Ventricle
Pulmonary Artery
Lungs-­Carbon Dioxide out/Oxygen
Pulmonary Veins
Left Atrium
Left Ventricle
To the Body




Blood is respon­­sible for:
• Transp­­orting gases (Oxygen, Carbon dioxide)
• Transp­­orting water
• Transp­­orting Nutrients
• Transp­­orting Wastes
• Delivering immune cells to fight disease
• Transp­­orting heat

Parts of blood

Red Blood cells
1/4 the size of a wbc
44 %
carry oxygen around body
White blood cells
invisible unless stained
1 %
immue cells
liquid portion of blood blood
54 %
where carbon dioxide is disolved
cell fragments
1 %
help clot any damage


In the lungs, oxygen travels to thousands of tiny air sacs called alveoli.
These are covered in capill­­aries, The increased surface area-b­­ecause of these tiny air sacs- paired with thin walls, increase the rate of gas diffusion into/from the capill­­aries


Inhala­­tion. Ribcage moves outward and the lungs expand, Air moves in, Diaphragm moves down, volume of chest cavity increases, interc­­ostal muscles contract, decreases pressure in chest cavity.

Exhala­­tion, ribcage moves inward and the lungs contract, air moves out, diaphragm moves up, volume of chest cavity decreases, interc­­ostal muscles expand, increases pressure in chest cavity.

Breathing out is called relaxing, breathing in is called contra­­cting.